POWDER CORES MPP/High Flux/Sendust/Power Flux/Ultral Flux

POWDER CORES MPP/High Flux/Sendust/Power Flux/Ultral Flux DONGBU ELECTRONIC MATERIALS Innovation for a creating Customer value

Introduction Dongbu Electrinic Materials Co., Ltd. is a fine chemical product manufacturer jointly invested by Dongbu Hannong Chemical Co., Ltd. and korea Technology Promotion Co. (corporation invested by KAIST) Agrochemical technicals market in Korea relied soley on imports until Dongbu Fine Chemicals succeeded in localizing agrochemical technicals for the first time in Korea. The company has also achieved stable distribution and price stability of agricultural chemicals. Dongbu Electrinic Materials Co., Ltd. developed over 6 products of agrochemicals technicals with 3 of those items in the market currently. After the establishment of Fine Chemical Technology Institute, the company is in the process of developing other areas of fine chemistry such as polymer materials, their intermediates, and pure elcctronic reagents with a stable foundation of accumulated skills. Dongbu Fine Chemicals Co., Ltd. is a future-oriented company, which will lead the fine chemical industry to a high-valued industry. In 1999, Dongbu Electrinic Materials participated the magnetic Powder Cores business whose subsidiary company, Dongbu Steel Co., Ltd. s t a r t e d a n d d e v e l o p e d o r i g i n a l l y. A n d established new manufacturing facilities included entire process from purchasing raw materials to the final test. In 21, We got QS-9/ISO92 quality systems from KSA(Korea Standard Associates) after getting QS-9/ISO92 quality systems, our quality was very upgraded. MPC products include Molypermalloy Powder Cores (MPP), Sendust Powder Cores, High Flux Powder Cores (HF) and Power Flux Cores (PF) which are made of metal alloy powders such as nickel, iron, aluminum, silicon and molydbenum. Through their functional properties of automatic voltage control, power conversion and electromagnetic wave and noise reduction, these MPC products are the core parts in all kinds of power supply for electronic and telecommunication appliances. To satisfy customer s requirements, We will try to increase our capability and reliability continuously to get the most competitive power.

Innovation for Creating Customer Value Contents 2 General Information 2 Application 3 Core Identification Name Code of Materials and Color of Toroidal Cores Apparent Inductance in 1, turns 4 Breakdown Voltage and Coating Materials Tolerance of Apparent Inductance Unit Pack Quantity 5 Core Dimension Table 6 Winding Data 7 Single Layer Winding Capacity 9 Wire Table 1 Technical Information 1 Magnetic Design Formula 12 Conversion Table 14 Permeability vs. Frequency 16 Normal Magnetizing Curves 18 Permeability vs. AC Flux Density 2 Permeability vs. DC Bias Curves 22 Factors of Permeability vs DC Bias Fit Formula 24 Factors of Percentage Permeability (x1) calculation 26 Typical Core Loss of MPP 28 Typical Core Loss of High Flux 3 Typical Core Loss of Sendust 31 Typical Core Loss of Power Flux 32 Temperature Stability 34 Symbol and Units 35 Glossary of Terms 41 Dimension and Reference Table 5 Standard MPC (Magnetic Powder Core) Toroidal Series 82 Special Core Data 82 Special Height UP/Down MPC Core Series 84 Special Sendust 9μCore Series 85 Dongbu Special Shape Core Data 86 E-Core series 87 Block-Core series 88 U-Core series

Application MPP Cores High Resistivity Features Inductors for Q Application Low Hysteresis and Eddy Current Loss Excellent Inductance Stability under High DC-Bias condition Excellent Temperature Stability Low Loss Filter Circuits Loading Coils Transformers, Chokes and Inductors Loading Coils High Flux Cores Features Excellent DC-Bias Characteristics High B max of 15, Gauss Compared to MPP or Ferrites Core Loss Significantly Lower than Iron Powder Cores Large Energy Storage Capacity In-line Noise Filters Switching Regulator Inductors Pulse Transformers, Fly-back Transformers, PFC Chokes Output Choke Application Sendust Cores Features Core Loss Lower than Iron Powder Cores Good DC-Bias Characteristics Low Core Loss / Good DC-Bias Application Switching Regulator Inductors In-line Noise Filters Pulse Transformers, Fly-back Transformers PFC Chokes Power Flux Cores Features Application Excellent DC-Bias Property Power choke for high current (over 5A) Good Temperature Stability Core Loss Lower than Fe-Si Strip Cores Power inductor for energy storage (solar cell, wind energy) Power output stage inductor Basic Material Properties Core Material Permeability ( μ ) Flux Density(G) Perm. Vs. DC bias Core Loss Curie Temp. ( ) Temp. Stability MPP 14~125 7 Better Lowest 45 Best High High Flux 14~125 15 Best Low 5 Better Medium Sendust 14~125 1 Good Medium 5 Good Low Power Flux 6~9 16 Best Medium 5 Good Low Relative Cost 2 Dongbu Electronic Materials

Core Identification Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer s special requirement, some cores are coated with parylene coating. A part number means core identification and it includes name code of materials, core outer diameter, apparent inductance code temperature stability code and inductance tolerance band code. General Information Core identification for easy distinction is following as below. (example) MPC Toroidal Core Series M 16 157 A Temperature stability Inductance Size Material : inductance temperature stability : apparent inductance (mh) factor for 1, turns : outer diameter of core before coating (1/1Inch) : material code (M:MPP, H:High Flux, S:Sendust, W:Power Flux) Normally, name code of materials, outer diameter of bare core, apparent inductance in 1, turns and inductance temperature stability are stamped on the outside of the core. But, for customer order, tolerance band of apparent inductance is marked in packing label. Name Code of Materials and Color of Toroidal Cores Brand Name Material Core Color Material Code MPP Fe-Ni-Mo alloy powder Grey M High Flux Fe-Ni alloy powder Khaki H Sendust Fe-Si-Al alloy powder Black S Power Flux Fe-Si alloy powder Bluish Green W Apparent Inductance in 1 turns Apparent inductance is value in mh/1 turns. (AL value is the inductance(nh) per turn squared.) www.dongbuem.com 3

Breakdown Voltage and coating materials It means breakdown voltage of core and is as the below [ Table 1 ] : [ Table 1 ] Breakdown voltage Coating Material Guaranteed Breakdown Voltage UL Number Parylene coating >.5kV (min.) - Epoxy coating >.5kV (min.) UL94V- Tolerance of Apparent Inductance OD (1/1 inch) Tolerance 14 ~ 18-15% ~ +15% 25 ~ 44-12% ~ +12% 5 ~ -8% ~ +8% Unit Pack Quantity Quantity Quantity Quantity Quantity Core Size Page Core Size Page Core Size Page Core Size (pcs/box) (pcs/box) (pcs/box) (pcs/box) Page 14 6, 52 4 8, 61 92 864 68 184 12 74,75 15 6, 53 44 8, 62 16 48 69 2 14 76 18 6, 54 5 4,8 63 13 336 7 225 11 77,78 25 4, 55 65 1,68 64 135 28 71 244 1 79 26 2, 56,57 68 1,68 65 141 288 72 36 88 8, 81 31 2, 58 8 1,2 66 157 22 73 4 2 82, 83 38 12, 59,6 9 972 67 4 Dongbu Electronic Materials

Core dimension Table Part Number Window Area (cm 2 ) Cross Section Ae(cm 2 ) Magnetic Path Length (cm) Surface Area Ae(cm 2 ) After finish 4% winding factor Dimension(mm) OD(Max) x ID(Min) x HT(Max) Before Finish 4% winding factor General Information 14.18.13.817.48.65 3.56 x 1.78 x 1.52 4.19 x 1.27 x 2.16 15.3.21.942.76 1.2 3.94 x 2.24 x 2.54 4.57 x 1.73 x 3.18 18.29.28 1.62.9 1.5 4.65 x 2.36 x 2.54 5.28 x 1.85 x 3.18 25.41.47 1.361 1.68 2.2 6.35 x 2.79 x 2.79 6.99 x 2.29 x 3.43 26.41.47 1.363 1.7 2.3 6.6 x 2.67 x 2.54 7.24 x 2.16 x 3.18 26.38.92 1.363 2.41 2.9 6.6 x 2.67 x 4.78 7.24 x 2.16 x 5.54 31.92.61 1.787 2.38 3.2 7.87 x 3.96 x 3.18 8.51 x 3.43 x 3.81 38.142.75 2.18 3.12 4.4 9.65 x 4.78 x 3.18 1.29 x 4.27 x 3.81 38.142.94 2.18 3.46 4.7 9.65 x 4.78 x 3.96 1.29 x 4.27 x 4.6 4.164.1 2.38 3.7 5.1 1.2 x 5.8 x 3.96 1.8 x 4.57 x 4.6 44.273.9 2.69 4.31 6. 11.2 x 6.35 x 3.96 11.89 x 5.89 x 4.72 5.383.114 3.12 5.6 8.1 12.7 x 7.62 x 4.75 13.46 x 6.99 x 5.51 65.713.192 4.11 9.2 13.6 16.5 x 1.2 x 6.35 17.4 x 9.53 x 7.11 68.576.232 4.14 9.9 14.7 17.3 x 9.65 x 6.35 18.3 x 9.2 x 7.11 8 1.14.226 5.9 12.1 18.9 2.3 x 12.7 x 6.35 21.1 x 12.7 x 7.11 9 1.41.331 5.67 15.7 23.8 22.9 x 14. x 7.62 23.62 x 13.39 x 8.38 92 1.49.388 5.88 17.9 26.3 23.6 x 14.4 x 8.89 24.3 x 13.77 x 9.7 16 1.56.654 6.35 24.7 33.8 26.9 x 14.7 x 11.2 27.7 x 14.1 x 11.99 13 2.93.672 8.15 31.5 48. 33. x 19.9 x 1.7 33.83 x 19.3 x 11.61 135 4.1.454 8.95 29.3 51.3 34.3 x 23.4 x 8.89 35.1 x 22.56 x 9.83 141 3.64.678 8.98 35.5 55.1 35.8 x 22.4 x 1.5 36.63 x 21.54 x 11.28 157 4.27 1.72 9.84 48.4 71.7 39.9 x 24.1 x 14.5 4.72 x 23.3 x 15.37 184 4.27 1.99 1.74 69.3 94.3 46.7 x 24.1 x 18. 47.63 x 23.32 x 18.92 184 6.11 1.34 11.63 61.7 95.1 46.7 x 28.7 x 15.2 47.63 x 27.89 x 16.13 2 7.5 1.251 12.73 64.2 16.3 5.8 x 31.8 x 13.5 51.69 x 3.94 x 14.35 225 5.14 2.29 12.5 91. 115. 57.2 x 26.4 x 15.2 58. x 25.6 x 16.1 225 9.48 1.444 14.3 76.8 13.7 57.2 x 35.6 x 14. 58. x 34.7 x 14.86 244 7.73 3.675 14.37 118. 156. 62. x 32.6 x 25. 68.3 x 27.5 x 31.4 36 17.99 1.77 2. 117.5 23.1 77.8 x 49.2 x 12.7 78.9 x 48.2 x 13.84 36 17.99 2.27 19.95 13. 225.2 77.8 x 49.2 x 15.9 78.9 x 48.2 x 17.2 4 24.41 2.97 24.27 191.5 335.1 11.6 x 57.15 x 13.59 12.87 x 55.75 x 14.86 4 24.41 3.52 24.27 26. 36.5 11.6 x 57.15 x 17.78 12.87 x 55.75 x 19.4 www.dongbuem.com 5

Winding Data Core Size Window Area Winding Data Wire Length / Turn Wound Dimension(unity) 1% (unity) % OD(max) HT(max) cm 3 Cir-Mils cm ft cm ft cm in cm in 14.2 3,6.7.23.59.2.5.2.27.11 15.3 6,8 1.5.34.89.29.58.23.48.19 18.3 5,78 1.14.38.99.32.67.26.49.2 25.4 8,1 1.35.44 1.16.38.88.35.54.21 26.4 8,1 1.33.44 1.13.37.19.36.51.2 26.4 7,57 1.75.58 1.62.53.92.36.74.29 31.9 18,2 1.6.52 1.27.42 1.1.43.67.27 38.14 28,2 1.79.59 1.37.45 1.34.53.74.29 38.14 28,2 1.93.63 1.52.5 1.34.53.82.32 4.16 32,4 1.99.65 1.54.5 1.41.55.85.33 44.27 53,8 2.2.72 1.55.51 1.57.62.9.35 5.38 75,6 2.49.82 1.75.57 1.82.72 1.15.45 65.71 14,6 3.22.16 2.2.72 2.37.93 1.52.6 68.58 126, 3.67.12 2.33.76 2.49.98 1.63.64 8 1.14 225,6 3.67.12 2.33.76 2.92 1.15 1.74.68 9 1.41 277,7 4.29.141 2.7.89 3.26 1.28 1.98.78 92 1.49 293,8 4.49.147 3..98 3.35 1.32 2.14.84 16 1.56 38, 5.23.171 3.76.123 3.73 1.47 2.4.94 13 2.93 577,6 5.93.194 3.78.124 4.67 1.84 2.8 1.1 135 4.1 788,5 5.87.192 3.23.16 5.1 1.97 2.9 1.14 141 3.64 719.1 6.22.24 3.78.124 5.11 2.1 2.96 1.17 157 4.27 842,7 7.38.242 4.81.158 5.64 2.22 3.52 1.39 184 4.27 842.7 8.66.284 6.22.24 6.38 2.51 3.87 1.53 184 6.11 1,26, 8.34.273 5.2.171 6.63 2.61 3.98 1.57 2 7.5 1,484, 8.51.279 4.95.162 7.24 2.85 4.6 1.6 225 5.14 1,14, 9.2.296 6.46.212 7.57 2.98 3.4 1.34 225 9.48 1,871, 9.33.36 5.3.74 8.13 3.2 4.44 1.75 225 7.73 1,525,535 13.31.437 8.73.277 6.98 2.75 3.28 1.29 36 17.99 3,55, 1.4.34 5.9.193 11.2 4.4 5.43 2.14 36 17.99 3,55, 11..361 6.52.124 11.3 4.45 5.77 2.27 4 24.41 4,818,25 13.21.433 7.68.252 15.2 5.98 5.53 2.18 4 24.41 4,818,25 14.24.467 8.27.271 15.2 5.98 6.15 2.42 A) Window Area = πx ID ( 2 ) 2 B) Winding factor is the ratio of wire area to available window area 4% for toroids. 7~8% for rectangular windows C) 1% winding condition assumed 6 Dongbu Electronic Materials

Single Layer Winding Capacity General Information Core Size ID (mm) 14 15 18 25 26 26 31 38 4 44 5 65 68 8 1.27 1.73 1.85 2.29 2.16 2.16 3.45 4.27 4.57 5.89 6.99 9.53 9.2 12.7 Wire No. Wire Dia (mm) Turns / Single layer 8 3.34 9 2.98 1 2.67 1 11 2.38 12 12 2.13 14 13 1.9 12 11 16 14 1.71 14 13 18 15 1.53 16 15 21 16 1.37 1 12 18 17 24 17 1.22 11 14 21 19 27 18 1.9 13 16 24 22 31 19.98 1 1 15 19 27 25 35 2.88 12 13 17 21 3 29 39 21.78 13 15 2 24 34 32 45 22.7 12 15 17 23 28 39 37 5 23.57 13 18 19 26 31 44 41 56 24.56 15 2 22 29 35 49 46 63 25.46 18 23 25 33 4 56 52 71 26.45 12 12 12 2 26 28 37 45 63 59 8 27.36 12 11 14 13 13 23 29 31 42 5 7 66 89 28.36 13 13 16 16 16 26 33 36 47 56 78 74 1 29.29 11 15 15 18 17 17 29 37 4 52 63 87 82 3.29 13 17 17 21 2 2 33 42 45 59 71 98 92 31.25 14 2 19 23 22 22 37 47 5 66 79 32.24 16 22 22 26 25 25 41 52 56 73 87 33.18 18 25 24 3 28 28 46 58 63 82 98 34.19 21 29 28 34 33 33 53 67 72 93 112 35.14 24 33 32 38 37 37 6 75 81 36.15 28 37 36 44 42 42 67 84 37.14 31 41 4 48 46 46 73 38.12 35 43 45 54 52 52 39.11 4 53 52 62 6 6 4.1 46 61 59 71 68 68 www.dongbuem.com 7

Single Layer Winding Capacity Core Size ID (mm) 9 92 16 13 135 141 157 184 184 2 225 225 244 36 4 13.39 13.77 14.1 19.3 22.6 21.5 23.3 23.32 27.9 3.94 25.6 34.7 31.37 48.2 55.75 Wire No. Wire Dia (mm) 8 3.34 15 18 17 18 18 23 25 2 29 26 41 47 9 2.98 11 11 17 2 19 21 21 26 29 23 33 38 47 54 1 2.67 12 13 13 19 23 22 24 24 29 33 26 37 33 53 63 11 2.38 14 15 15 22 26 25 27 27 33 37 3 42 38 6 72 12 2.13 16 17 17 25 3 28 31 31 37 42 34 48 43 67 81 13 1.9 18 19 2 28 34 32 35 35 42 47 39 54 48 76 91 14 1.71 21 22 22 32 38 36 39 39 47 53 43 6 54 84 13 15 1.53 24 25 25 36 43 41 44 44 54 6 49 68 61 95 117 16 1.37 27 28 29 41 48 46 5 5 6 67 55 76 68 16 132 17 1.22 31 32 33 46 54 52 56 56 68 76 62 85 77 119 147 18 1.9 35 36 37 52 61 58 63 63 76 85 7 96 87 134 167 19.98 39 4 42 58 69 65 71 71 86 95 78 18 97 15 187 2.88 44 46 47 65 77 73 8 8 96 17 88 12 18 268 21 21.78 5 51 53 74 87 82 9 9 18 12 99 135 123 188 239 22.7 56 58 6 83 98 93 11 11 121 135 111 152 137 211 268 23.57 63 65 66 92 19 13 112 112 135 15 124 169 169 235 24.56 71 73 75 13 122 116 126 126 152 168 138 189 172 263 25.46 8 82 84 26.45 89 92 94 27.36 99 12 15 28.36 111 29.29 3.29 31.25 32.24 33.18 34.19 35.14 36.15 37.14 38.12 39.11 4.1 Turns / Single layer 8 Dongbu Electronic Materials

Wire Table General Information Wire Size Resistance Ohms/Foot Wire Area Current Capacity Amperes Circular Mils cm 2 (X1-3 ) (1) (2) 8.63 18, 91.2 22. 44. 9.79 14,35 72.7 17.5 35. 1.1 11,5 58.2 13.8 27.6 11.126 9,16 46.4 11. 22. 12.159 7,31 37. 8.71 17.4 13.2 5,85 29.6 6.91 13.8 14.252 4,68 23.7 5.48 1.9 15.318 3,76 19.1 4.35 8.7 16.42 3, 15.2 3.44 6.88 17.55 2,42 12.2 2.74 5.48 18.639 1,94 9.83 2.17 4.34 19.85 1,56 7.91 1.72 3.44 2.113 1,25 6.34 1.37 2.74 21.128 1, 5.7 1.83 2.17 22.162 81 4.11.853 1.71 23.23 65 3.29.681 1.36 24.257 525 2.66.539 1.8 25.324 425 2.15.427.854 26.41 34 1.72.337.674 27.514 27 1.37.269.538 28.653 22 1.11.212.424 29.812 18.912.17.34 3.14 144.73.133.266 31.131 117.593.156.211 32.162 96..487.853.171 33.26 77.4.392.672.134 34.261 6.8.38.53.16 35.331 49..248.418.836 36.415 39.7.21.333.666 37.512 32.5.165.27.54 38.65 26..132.213.426 39.847 2.2.12.163.326 4 1.7 16..81.128.256 41 1.32 13..66.15.21 42 1.66 1.2.52.833.166 43 2.14 8.4.43.645.129 44 2.59 7.3.37.533.17 45 3.35 5.3.27.412.824 46 4.21 4.4.22.33.66 47 5.29 3.6.18.259.518 48 6.75 2.9.15.533.466 49 8.42 2.25.11.2.4 5 1.58 1.96.1.13.26 Based on maximum diameter of heavy film magnet wire with insulation (1) Based on 75 cir mil/amperes. (2) Based on 375 cir mil/amperes. Current capacity will vary according to the core geometry and wire size, and can range from 375 to 1 circular mils per ampere. www.dongbuem.com 9

Magnetic Design Formula The inductance of a core and the number of turns can be calculated by using the following formula. inductance of wound Cores L = L N = L 1 =.4πμN 2 A x 1-2 L 2 2 2 N 1 N 2 l A L x N 2 1 3 Required N = desired L(nH) ( ) 1/2 A L (nh / N 2 ) Where L = induntance (μh) μ = core permeability N = number of turns A = core cross section area (cm 2 ) l = mean magnetic path length (cm) L N = inductance for N turns (μh) A L = nominal inductance(nh/n 2 ) Example) M466A L =.4π x 125 x 1 2 x.1 x 1-2 2.38 = 6.6(μH) N = 1 turns (our standard wound turns for M4-66A) A =.1cm 2 (please see the page 56 ) l = 2.38cm (please see the page 56 ) L N = 66 x 1 2 x 1-3 = 6.6(μH) The relations of Permeability-Flux Density(B)-Magnetizing Force(H) H = Bmax = μ =.4πNI l Ermsx1 2 4.44fAN B H (Ampere s Law) (Faraday s Law) Where H = magnetizing force (Oersteds) N = number of turns I = peak magnetizing current (A) l = mean magnetic path length (cm) Bmax = maximum flux density (Gauss) Erms = voltage across coil (V) A = core cross section area (cm 2 ) f = frequency (Hz) μ = material permeability Ampere s Law : The law is the magnetic equivalent of Gauss s law. It relates the circulating magnetic field in a closed loop to the electric current passing through the loop Faraday s Law : The law that defines the relationship of the voltage induced across the winding of a core to the flux density within the core 1 Dongbu Electronic Materials

Inductance calculation by Permeability vs. DC bias curves Specification Core : M466A Applied current : 3A 1) inductance Calculation at A L =.4π x 125 x 1 2 x.1 x 1-2 2.38 = 6.6(μH) N = 1 turns (our standard wound turns for M4-66A) A =.1cm 2 (please see the page 56 ) l = 2.38cm (please see the page 56 ) L N = 66 x 1 2 x 1-3 = 6.6(μH) Technical Information 2) Magnetizing force (H : Oe) is calculated by Ampere law to achieve the roll off.4 x π x N x I.4 x π x 1 x 3 H = = = 15.8(Oe) l 2.38 3) When the magnetizing force(h) is 15.8 Oe, yielding 85% of initial permeability. Therefore, the Inductance at 3A is L(3A) = 6.6 x.85 = 5.6(μH) Core loss The total core losses are made up of three main components : Hysteresis, eddy current and residual losses. Rac μl = abmaxf + cf + ef2 eddy current loss residual loss hysteresis loss total loss factor Where Rac = effective resistance (Ohm) a = hysteresis loss coefficient c = residual loss coefficient e = eddy current loss coefficient μ = same as before mentioned L = inductance Bmax = maximum flux density f = frequency www.dongbuem.com 11

Q Factor The Q factor is the ratio of reactance to the effective resistance and is often used as measure of performance. So, the Q factor represents the effect of electrical resistance. Q = ω L Rdc + Rac + Rd = Reactance Total Resistance Where Q = quality factor ω = 2 π f (Hz) L = inductance (H) Rdc = DC winding resistance (Ohm) Rac = resistance due to core losses (Ohm) Rd = resistance due to winding dielectric losses (Ohm) Physical constant of core Le = Ae = π(od-id) In OD ID OD-ID 2 Ve = Le x Ae Window Area = π x x HT ( ) 2 ID 2 Le = effective mean magnetic path length (cm) Ae = effective core cross section area (cm 2 ) Ve = effective core volume (cm 3 ) OD = core outer diameter before coating (cm) ID = core inner diameter before coating (cm) HT = core height before coating (cm) Conversion Table CGS (unit) By To obtain (unit) Factor Magnetic Flux Density (B) Gauss (G) 1-4 Tesla (T) 1T=1 4 G Magnetizing Force (H) Oersted (Oe) 79.58 Amperes per Meter (A/m) 1A/m=4π/1 3 Oe 12 Dongbu Electronic Materials

Temperature Rising Calculation The increase in surface temperature of a component in free-standing air due to the total power dissipation (both copper and core loss). The following formula has been used to approximate temperature rise: Temperature Rise( o C) = Total Power Loss = Copper Loss + Core Loss Surface Area means in case of wound core ( ).833 Total Power Loss (milliwatts) Surface Area(cm 2 ) Technical Information Nominal DC Resistance Nominal DC Resistance, in ohm/mh, at any given winding factor can be calculated by using the following equations: Ω/mhu Ω/mhwf = wf x Kwf Ku Where Ω /mhwf = Ω mh for chosen winding factor Ω /mhu = unity value, listed for each core size wf = chosen winding factor Kwf = length/turn for chosen wf* K u = length/turn for unity(1%) wf* * see winding Turn Length on core size pages The value of Rdc for any given winding factor can be computed as follows: Rdcwf = Rdcu x wfx Kwf Ku Where Rdcwf = Rdc for chosen winding factor Rdcu = unity value, listed for each core size(ohms) wf = chosen winding factor Kwf = length/turn for chosen wf* Ku = length/turn for unity(1%) wf* * see winding Turn Length on core size pages www.dongbuem.com 13

Permeability vs. Frequency 1 9 MPP 14μ 26μ 6μ Percent Permeability(%) 8 7 6 5 4 3 125μ 2 1 1 1 1 1 Frequency (khz) 1 9 8 High Flux 14μ 26μ 6μ Percent Permeability(%) 7 6 5 4 3 125μ 2 1 1 1 1 1 Frequency (khz) 14 Dongbu Electronic Materials

Permeability vs. Frequency Percent Permeability(%) Percent Permeability(%) 1 98 96 94 92 9 88 86 84 82 8 1 9 8 7 6 5 4 3 Sendust 1 1 1 1 Power Flux Frequency (khz) 6μ 9μ 14μ 26μ 35μ 6μ 75μ 9μ 125μ Technical Information 2 1 1 1 1 1 Frequency (khz) www.dongbuem.com 15

Normal Magnetizing Curves 8 MPP 7 Flux Density (Gauss) 6 5 4 3 125μ 6μ 26μ 2 1 1 1 1 1 Magnetizing Force (Oersteds) Flux Density (Gauss) 14 13 12 11 1 9 8 7 High Flux 6 5 4 3 2 1 1 1 1 1 Magnetizing Force (Oersteds) 125μ 6μ 26μ 16 Dongbu Electronic Materials

Normal Magnetizing Curves Flux Density (Gauss) Flux Density (Gauss) Sendust 11 1 9 8 7 6 5 4 3 2 1 1 1 1 1 Magnetizing Force (Oersteds) Power Flux 16 14 12 1 8 6 9μ 125μ 9μ 6μ 75μ 6μ 26μ Technical Information 4 2 1 1 1 1 Magnetizing Force (Oersteds) www.dongbuem.com 17

Permeability vs. AC Flux Density 4 MPP Percent Change of Permeability (%) 3 2 1 125μ 6μ 26μ -1 1 1 1 1 AC Flux Density (Gauss) 3 High Flux 25 Percent Change of Permeability (%) 2 15 1 5-5 125μ 6μ 26μ -1 1 1 1 1 AC Flux Density (Gauss) 18 Dongbu Electronic Materials

Permeability vs. AC Flux Density Sendust Percent Change of Permeability (%) 4 3 2 1 125μ 9μ 75μ 6μ 26μ Technical Information -1 1 1 1 1 AC Flux Density (Gauss) 4 Power Flux percent change of permeability(%) 3 2 1 6μ -1 1 1 1 1 AC Flux Density (Gauss) www.dongbuem.com 19

Permeability vs. DC Bias Curves 1 MPP Percent Perm eability (%) Percent Perm eability (%) 9 8 7 6 5 4 3 2 1 1 9 8 7 6 5 4 3 2 1 125μ 6μ 26μ 14μ 1 1 1 1 DC Mangnetizing Force (Oe) High Flux 125μ 6μ 26μ 14μ 1 1 1 1 DC Mangnetizing Force (Oe) 2 Dongbu Electronic Materials

Permeability vs. DC Bias Curves Percent Perm eability (%) Percent Perm eability (%) Sendust 1 9 8 7 6 125μ 9 μ 75μ6μ 35μ 26μ 14μ 5 4 3 2 1 1 1 1 1 DC Mangnetizing Force (Oe) Power Flux 1 9 8 7 6 5 4 3 9μ 6μ Technical Information Technical Information 2 1 1 1 1 1 DC Mangnetizing Force (Oe) www.dongbuem.com 21

Factors of Permeability vs. DC Bias Fit Formula μ e ff = a 2 3 μ + μ Η + μ 1 c μ + Η + b d μ 2 4 Η Η 2 2 MPP μ a b c d 14-3.524E-5-1.8222E-8-3.5714E-5 5.12E-8 26-4.741E-5-2.2758E-9-4.6154E-5 2.9586E-8 6-8.2917E-5 1.8519E-9-5.8333E-5 2.7778E-8 125-7.289E-5 1.3824E-9-9.4E-5 3.2E-8 High Flux μ a b c d 14-7.6531E-6-3.2799E-9 1.4286E-6 5.12E-9 26-2.4556E-5-1.769E-9 1.1538E-5 5.9172E-9 6-2.8972E-5-4.6296E-1-2.5E-5 8.3333E-9 125-3.4861E-5 3.72E-1-3.52E-5 6.4E-9 22 Dongbu Electronic Materials

Factors of Permeability vs. DC Bias Fit Formula μ e ff = a 2 3 μ + μ Η + μ 1 c μ + Η + b d μ 2 4 Η Η 2 2 Technical Information Sendust μ a b c d 14-3.6735E-5-7.2886E-9-2.1429E-5 3.612E-8 26-9.1716E-5 2.2758E-9 8.4615E-5 1.4793E-8 35-1.522E-4 2.3324E-9 4.8571E-5 1.6327E-8 6-7.425E-5 1.8519E-9 1.3333E-5 1.3889E-8 75-9.158E-5 2.1333E-9 3.4667E-5 1.667E-8 9-8.2457E-5 1.7833E-9 1.E-5 2.4691E-8 125-9.1155E-5 1.9456E-9-9.6E-6 2.56E-8 Power Flux μ a b c d 6-3.5444E-5-1.8519E-1 6.6667E-7 8.3333E-9 9-5.4914E-5 8.235E-1-4.4444E-6 8.642E-9 www.dongbuem.com 23

Factors of Percentage Permeability (x1) calculation Ratio of Perm. = 1 + k Η + l Η 1 + mη + n Η 2 2 MPP μ k l m n 14-4.9286E-4-3.5714E-6-5.E-4 1.E-5 26-1.2231E-3-1.5385E-6-1.2E-3 2.E-5 6-4.975E-3 6.6667E-6-3.5E-3 1.E-4 125-9.1112E-3 2.16E-5-1.13E-2 5.E-4 High Flux μ k l m n 14-1.714E-4-6.4286E-7 2.E-5 1.E-6 26-6.3846E-4-1.1538E-6 3.E-4 4.E-6 6-1.7383E-3-1.6667E-6-1.5E-3 3.E-5 125-4.3576E-3 4.8E-6-4.4E-3 1.E-4 24 Dongbu Electronic Materials

Factors of Percentage Permeability (x1) calculation Ratio of Perm. = 1 + k Η + l Η 1 + mη + n Η 2 2 Technical Information Sendust μ k l m n 14-5.1429E+ -1.4286E-2-3.E-4 6.E-6 26-2.3846E+1 1.5385E-2 2.2E-3 1.E-5 35-3.6829E+1 2.8571E-2 1.7E-3 2.E-5 6-4.455E+1 6.6667E-2 8.E-4 5.E-5 75-6.8293E+1 1.2E-1 2.6E-3 6.E-5 9-7.4211E+1 1.4444E-1 9.E-4 2.E-4 125-1.1394E+2 3.4E-1-1.2E-3 4.E-4 Power Flux μ k l m n 6-2.1267E-3-6.6667E-7 4.E-5 3.E-5 9-4.9422E-3 6.6667E-6-4.E-4 7.E-5 www.dongbuem.com 25

Typical Core Loss of MPP 1 MPP 14μ 1 Core Loss (mw/cm 3 ) 1 1 2KHz 1KHz 5KHz 25KHz 1 P L =2.33F 1.31 B 2.19.1 1 1 1 1 Flux Density (Gauss) 1 MPP 26μ 1 Core Loss (mw/cm 3 ) 1 1 2KHz 1KHz 5KHz 25KHz 1 P L =1.39F 1.28 B 1.29.1 1 1 1 1 Flux Density (Gauss) P L =C X F a X B b (F : khz - B : kg) Perm. C a b 14 2.33 1.31 2.19 26 1.39 1.28 1.29 26 Dongbu Electronic Materials

Typical Core Loss of MPP 1 MPP 6μ Core Loss (mw/cm 3 ) 1 1 1 2KHz 1KHz 5KHz 25KHz Technical Information 1 P L =.64F 1.41 B 2.2.1 1 1 1 1 Flux Density (Gauss) 1 MPP 125μ 1 Core Loss (mw/cm 3 ) 1 1 2KHz 1KHz 5KHz 25KHz 1 P L =1.2F 1.4 B 2.3.1 1 1 1 1 Flux Density (Gauss) P L =C X F a X B b (F : khz - B : kg) Perm. C a b 6.64 1.41 2.2 125 1.2 1.4 2.3 www.dongbuem.com 27

Typical Core Loss of High Flux 1 HIgh Flux 14μ 1 Core Loss (mw/cm 3 ) 1 1 1 2KHz 1KHz 5KHz 25KHz P L =7.26F.95 B 1.91.1 1 1 1 1 Flux Density (Gauss) 1 HIgh Flux 26μ 1 Core Loss (mw/cm 3 ) 1 1 2KHz 1KHz 5KHz 25KHz 1 P L =3.19F 1.22 B 1.8.1 1 1 1 1 Flux Density (Gauss) P L =C X F a X B b (F : khz - B : kg) Perm. C a b 14 7.26.95 1.91 26 3.19 1.22 1.8 28 Dongbu Electronic Materials

$ Typical Core Loss 1 High Flux HIDl Hlgh Flux 14 p. 1 이 " {ε E )ω ω1 '" (생 ~ 옳 OiJ' 흉 g / '2.~.1 '" 1 e P Flux Density (Ga =) HlXl l =726fO. 95Bul 1 미 III H lgh Flux 26μ (JlXJ 1αm ( / ιl 짧짧 1 &γ )생용 g1 PL =1.38F\37B23 E으 E.1 1 1 1(lXJ 1 이 lxl FI, Oensily (Gauss) a b Po<m a b PL=C x F x B 14 7.26.95 1.91 (F:kHz - B:kG) c 26 1.38 1.37 2.3 28

Typical Core Loss of High Flux 1 HIgh Flux 6μ Core Loss (mw/cm 3 ) 1 1 1 2KHz 1KHz 5KHz 25KHz Technical Information 1 P L =3.65F 1.15 B 2.16.1 1 1 1 1 Flux Density (Gauss) 1 HIgh Flux 125μ 1 Core Loss (mw/cm 3 ) 1 1 2KHz 1KHz 5KHz 25KHz 1 P L =1.62F 1.32 B 2.2.1 1 1 1 1 Flux Density (Gauss) P L =C X F a X B b (F : khz - B : kg) Perm. C a b 6 3.65 1.15 2.16 125 1.62 1.32 2.2 www.dongbuem.com 29

Typical Core Loss of Sendust 1 sendust 14μ, 26μ 1 Core Loss (mw/cm 3 ) 1 1 2KHz 1KHz 5KHz 25KHz 1 P L =2.27F 1.26 B 2.8.1 1 1 1 1 Flux Density (Gauss) 1 sendust 6,75,9,125μ 1 Core Loss (mw/cm 3 ) 1 1 2KHz 1KHz 5KHz 25KHz 1 P L =2.F 1.31 B 2.15.1 1 1 1 1 Flux Density (Gauss) P L =C X F a X B b (F : khz - B : kg) Perm. C a b 14, 26 2.27 1.26 2.8 6,75,9,125 2. 1.31 2.15 3 Dongbu Electronic Materials

Typical Core Loss of Power Flux 1 Power Flux 6, 9μ Core Loss (mw/cm 3 ) 1 1 1 2KHz 1KHz 5KHz 25KHz Technical Information 1.1 1 1 1 1 Flux Density (Gauss) P L = F 1.25 B 2. P L =C X F a X B b (F : khz - B : kg) Perm. C a b 6, 9 1.25 2. www.dongbuem.com 31

Temperature Stability MPP 3. Percent Permeability (%) 2. 1.. 125μ 6μ 26μ 14μ -1. -2. -3-2 -1 1 2 3 4 5 6 7 8 9 1 11 12 13 Temperature ( o C) 5. 4. High Flux Percent Permeability (%) 3. 2. 1.. -.1 -.2 -.3 -.4 -.5 125μ 6μ 26μ 14μ -3-2 -1 1 2 3 4 5 6 7 8 9 1 11 12 13 Temperature ( o C) 32 Dongbu Electronic Materials

Temperature Stability Sendust Percent Permeability (%) 2. 1.. -1. -2. -3. 14,26μ 6μ 75μ 9μ Technical Information -4. -5. 125μ -6. -7. -3-2 -1 1 2 3 4 5 6 7 8 9 1 11 12 13 Temperature ( o C) 5. Power Flux 4. 3. Percent Permeability (%) 2. 1.. -.1 -.2 -.3 -.4 9μ 6μ -.5-3 -2-1 1 2 3 4 5 6 7 8 9 1 11 12 13 Temperature ( o C) www.dongbuem.com 33

Symbol and Units Symbol Discription Unit Ae effective cross section area of a core cm 2 AL apparent inductance nh/n 2 B magnetic flux density T Br remanence flux density T Bmax maximum flux density T Erms sinusoidal rms voltage across winding V H magnetizing force A/m Hc coercive force A/m Hmax maximum magnetizing force A/m l e effective magnetic path length cm L inductance H N number of turns - PL core loss of a core mw/cm 3 Q quality factor - V volume of a core cm 3 Rdc DC winding resistance Ω μ absolute permeability - μ e effective permeability - μ i initial permeability - μ r relative permeability - 34 Dongbu Electronic Materials

Glossary of terms AC flux density Number of flux lines per unit of cross-sectional area generated by an alternating magnetic field; Gauss Air Gap A non-magnetic discontinuity in a ferro-magnetic circuit. For example, the space between the poles of a magnet, although filled with brass of wood and other non-magnetic material, is nevertheless called an air gap. Core Losses Core losses are caused by an altering magnetic field in the core material. The losses are a function of the operating frequency and the total magnetic flux swing. The total core losses are made up of three main components: Hysteresis, eddy current and residual losses. These losses vary considerably from one magnetic material to another. Applications such as higher power and higher frequency switching regulators require careful core selection to yield the highest inductor performance by keeping the core losses to a minimum. Technical Information Breakdown Voltage (1)The voltage at which an insulator or dielectric ruptures, or at which ionization and conduction take place in a gas or vapor. (2) The reverse voltage at which avalanche breakdown occurs in a semiconductor. (3) Maximum AC or DC voltage that can be applied from the input to output (or chassis) of a converter without causing damage. Core Saturation The DC bias current flowing through an inductor which causes the inductance to drop by a specified amount from the initial zero DC bias inductance v a l u e. C o m m o n s p e c i f i e d i n d u c t a n c e d r o p percentages include 1% for ferrite cores and 2% for iron powder cores in energy storage applications. Also referred to as saturation current. Choke An inductor which is intended to filter, or 'choke', out unwanted signals. Copper Loss The power loss by current flowing through the winding. The power loss is equal to the square of the current multiplied by the resistance of the wire (i 2 x R). This power loss is transferred into heat. Curie Temperature The temperature at which a magnetic material loses its magnetic properties. The core's permeability typically increases dramatically as the core temperature approaches the curie temperature, which causes the inductance to increase. The permeability drops to near unity at the curie temperature, which causes the inductance to drop dramatically. The curie point is the temperature at which the initial permeability (µi) has dropped to 1% of its value at room temperature. www.dongbuem.com 35

Glossary of terms DC Bias Direct current (DC) applied to the winding of a core in addition to any time-varying current. Inductance with DC bias is a common specification for powder cores. The inductance will 'roll off' gradually and predictably with increasing DC bias. DCR Direct Current Resistance - The resistance of the inductor winding measured with no alternating current. The DCR is most often minimized in the design of an inductor. The unit of measure is ohms and it is usually specified as a maximum rating. change of flux density. Eddy current losses are present in both the magnetic core and windings of an inductor. Eddy currents in the winding, or conductor, contribute to two main types of losses: losses due to proximity effects and skin effects. As for the core losses, an electric field around the flux lines in the magnetic field is generated by alternating magnetic flux. This will result in eddy currents if the magnetic core material has electrical conductivity. Losses result from this phenomenon since the eddy currents flow in a plane that is perpendicular to the magnetic flux lines. Eddy current and hysteresis losses are the two major core loss factors. Eddy current loss becomes dominant in powder cores as the frequency increases. Effective Permeability Distributed Capacitance (1) In the construction of an inductor, each turn of wire or conductor acts as a capacitor plate. The combined effects of each turn can be presented as a single capacitance known as the distributed capacitance. The capacitance is in parallel with the inductor. This parallel combination will resonate at some frequency, which is called the self-resonant frequency (SRF). Lower distributed capacitance for a given inductance will result in a higher SRF and vice versa. (2) Capacitance that is not concentrated within a lumped capacitor, but spread over a circuit or group of components. For a magnetic circuit constructed with an air gap, or g a p s, t h e p e r m e a b i l i t y o f a h y p o t h e t i c a l homogeneous material that would provide the same reluctance, or net permeability. EMC Electromagnetic compatibility. The ability of an electronic device to operate in its intended environment without its performance being affected by EMI and without generating EMI that will affect other equipment. Eddy Current Losses Core losses associated with the electrical resistivity of the magnetic material and induced voltages within the material. Eddy currents are inversely proportional to material resistivity and proportional to the rate of EMI Electro-Magnetic Interference - An unwanted electrical energy in any form. EMI is often used interchangeably with 'noise' and 'interference'. 36 Dongbu Electronic Materials

Glossary of terms Flux Density (B) The corresponding parameter for the induced magnetic field in an area perpendicular to the flux path. Flux density is determined by the field strength and permeability of the medium in which it is measured. Full Winding corresponding values of flux density for the ordinate and magnetizing force for the abscissa when the material is passing through a complete cycle between definite limits of either magnetizing force or flux density. If the material is not driven into saturation it is said to be on a minor loop. Flux Density Maximum Permeability Maximum Flux Density Technical Information A winding for toroidal cores that will result in 45% of the core's inside diameter remaining. Remanence Intial Permeability Harmonics Energy at integral multiples of the frequency of the fundamental signal. Normally expressed as THD (Total Harmonic Distortion) but can be specified for harmonics of interest in either a percentage of or decibels below the power level of the fundamental frequency signal. Coercive Force Magnetizing Force Hysteresis Loss Hysteresis means to lag behind. This is the tendency of a magnetic material to retain its magnetization. Hysteresis causes the graph of magnetic flux density versus magnetizing force (B-H curve) to form a loop rather than a line. The area of the loop represents the difference between energy stored and energy released per unit of volume of material per cycle. This difference is called the hysteresis loss. High Q filters Hysteresis Loop A closed curve obtained for a material by plotting A filter circuit (inductor and/or capacitor) that exhibits high Q. It is very frequency-sensitive and filters out or allows to pass, only those frequencies within a narrow band. www.dongbuem.com 37

Glossary of terms Impedance The total opposition offered by a component or circuit to the flow of alternating or varying current at a particular frequency, including both the AC and DC component.. Impedance is expressed in ohms and is similar to the actual resistance in a direct current circuit. In computations, impedance is handled as a complex ratio of voltage to current. The ohm is the u n i t o f i m p e d a n c e. I m p e d a n c e i s t y p i c a l l y abbreviated as "z" or "Z". The frequency-invariant, real component of impedance is resistance. The frequency-variant, imaginary component of impedance is reactance. The reciprocal of impedance is admittance. material with changing magnetic flux density. The saturation magnetostriction coefficient has the symbols. It is change of length divided by original length (a dimensionless number) and is measured at the saturation flux density. Magnetostriction causes audible noise if the magnetostriction is sufficiently large and the applied field is AC and in the audible frequency range, e.g. 5 or 6 Hz. Mean Length Turn The average length of a single turn in the winding of the device. Inductance Factor (AL) The inductance rating of a core in nanohenries per turn squared (nh/n 2 ) based on a peak flux density of 1 gauss (1 mt) at a frequency of 1 khz. An AL value of 4 would produce 4µH of inductance for 1 turns and 4mH for 1 turns. Oersted The unit of magnetizing force in cgs units. One Oersted equals a magneto-motive force of one Gilbert per centimeter of path length. 1 Oersted = 79.58 A/m=.7958 A/cm Initial Permeability That value of permeability at a peak AC flux density of 1 gauss (1 mt). Percent Permeability (%) Represents the percent change in permeability from the initial value. Magnetic Energy The product of the flux density (B) and the (de) magnetizing force (H) in a magnetic circuit required to reach that flux density. Magnetostriction The expansion and contraction of a magnetic Q factor The Q factor or quality factor is a measure of the "quality" of a resonant system. Resonant systems respond to frequencies close to their natural frequency much more strongly than they respond to other frequencies. The Q factor indicates the amount of resistance to resonance in a system. Systems with a high Q factor resonate with a greater amplitude (at the resonant frequency) than systems with a low Q factor. Damping decreases the Q factor. 38 Dongbu Electronic Materials

Glossary of terms Search Coil A coil inductor, usually of known area and number of turns, that is used with a fluxmeter to measure the change of flux linkage with the coil. Single-Layer Winding A winding for a toroidal core which will result in the full utilization of the inside circumference of the core without the overlapping of turns. The thickness of insulation and tightness of winding will affect results. squared in amperes. Swing 1 Estored = LI 2 2 A term used to describe how inductance responds to c h a n g e s i n c u r r e n t. E x a m p l e : A 2 : 1 s w i n g corresponds to an inductor which exhibits 2 times more inductance at very low current than it does at its maximum rated current. This would also correspond to the core operating at 5% of initial permeability (also 5% saturation) at maximum current. Technical Information Surface Area The effective surface area of a typical wound core available to dissipate heat. Skin Effect Skin effect is the tendency for alternating current to flow near the surface of the conductor in lieu of flowing in a manner as to utilize the entire crosssectional area of tile conductor. The phenomenon causes the resistance of the conductor to increase. The magnetic field associated with the current in the conductor causes eddy currents near the center of the conductor which opposes the flow of the main current flow near the center of the conductor. The main current flow is forced further to the surface as the frequency of the alternating current increasing Stored Energy The amount of energy stored, in microjoules (1-6 joules), is the product of one-half the inductance (L) in microhenries (1-6 Henries), times the current (I) Switch Mode Power Supply A power conversion technique that involves breaking the input power into pulses at a high frequency by switching it on and off and re-combining these pulses at the output stage. Using this technique, an unregulated input voltage can be converted to one or more regulated output voltages at relatively high efficiencies. Switching Frequency The rate at which the DC input to a switching regulator is switched on and off. Temperature rise Change in temperature of a terminal from a no-load condition to full-current load. Also called T rise. (2) The increase in surface temperature of a component in air due to the power dissipation in the component. The power dissipation for an inductor includes both copper and core losses. www.dongbuem.com 39

Glossary of terms Temperature Coefficient A factor which describes the reversible change in a magnetic property with a change in temperature. The magnetic property spontaneously returns when the temperature is cycled to its original point. It usually is expressed as the percentage change per unit of temperature. Temperature Stabilization After manufacture, many types of soft and hard magnetic materials can be thermally cycled to make them less sensitive to subsequent temperature extremes. Winding Factor The ratio of the total area of copper wire inside the center hole of a toroid to the window area of the toroid. Window Area The area in and around a magnetic core which can be used for the placement of windings. 4 Dongbu Electronic Materials

MPP Cross Reference O.D I.D Height Dongbu Arnold Mag-Inc CSC Perm Inch mm Inch mm Inch mm M1413A MP-146-8 N/A CM356.14 3.56.7 1.78.6 1.52 6 M1426A MP-14125-8 5514 CM35125.14 3.56.7 1.78.6 1.52 125 M157A MP-1526-8 N/A N/A.155 3.94.88 2.24.1 2.54 26 M1517A MP-156-8 N/A CM396.155 3.94.88 2.24.1 2.54 6 M1535A MP-15125-8 5515 CM39125.155 3.94.88 2.24.1 2.54 125 M189A MP-1826-8 N/A N/A.183 4.65.93 2.36.1 2.54 26 M182A MP-186-8 55181 CM466.183 4.65.93 2.36.1 2.54 6 M1842A MP-18125-8 5518 CM46125.183 4.65.93 2.36.1 2.54 125 M251A MP-2526-8 5522 N/A.25 6.35.11 2.79.11 2.79 26 M2524A MP-256-8 5521 CM636.25 6.35.11 2.79.11 2.79 6 M255A MP-25125-8 552 CM63125.25 6.35.11 2.79.11 2.79 125 M2611A MP-2726-8 55242 CM6626.26 6.6.15 2.67.1 2.54 26 M2626A MP-276-8 55241 CM666.26 6.6.15 2.67.1 2.54 6 M2654A MP-27125-8 5524 CM66125.26 6.6.15 2.67.1 2.54 125 M2621A MP-2626-8 55272 CM6726.26 6.6.15 2.67.188 4.78 26 M265A MP-266-8 55271 CM676.26 6.6.15 2.67.188 4.78 6 M2613A MP-26125-8 5527 CM67125.26 6.6.15 2.67.188 4.78 125 M3111A MP-3126-8 5532 CM7826.31 7.87.156 3.96.125 3.18 26 M3125A MP-316-8 5531 CM786.31 7.87.156 3.96.125 3.18 6 M3152A MP-31125-8 553 CM78125.31 7.87.156 3.96.125 3.18 125 M3811A MP-3926-8 55282 CM9626.38 9.65.188 4.78.125 3.18 26 M3825A MP-396-8 55281 CM966.38 9.65.188 4.78.125 3.18 6 M3853A MP-39125-8 5528 CM96125.38 9.65.188 4.78.125 3.18 125 M3814A MP-3826-8 55292 CM9726.38 9.65.188 4.78.156 3.96 26 M3832A MP-386-8 55291 CM976.38 9.65.188 4.78.156 3.96 6 M3866A MP-38125-8 5529 CM97125.38 9.65.188 4.78.156 3.96 125 M414A MP-426-2 5542 CM1226.4 1.16.2 5.8.156 3.96 26 M432A MP-46-2 5541 CM126.4 1.16.2 5.8.156 3.96 6 M466A MP-4125-2 554 CM12125.4 1.16.2 5.8.156 3.96 125 M4411A MP-4426-2 55132 CM11226.44 11.18.25 6.35.156 3.96 26 M4426A MP-446-2 55131 CM1126.44 11.18.25 6.35.156 3.96 6 M4453A MP-44125-2 5513 CM112125.44 11.18.25 6.35.156 3.96 125 M512A MP-526-2 5552 CM12726.5 12.7.3 7.62.187 4.75 26 M527A MP-56-2 5551 CM1276.5 12.7.3 7.62.187 4.75 6 M556A MP-5125-2 555 CM127125.5 12.7.3 7.62.187 4.75 125 M6515A MP-6526-2 55122 CM16626.65 16.51.4 1.16.25 6.35 26 M6535A MP-656-2 55121 CM1666.65 16.51.4 1.16.25 6.35 6 M6572A MP-65125-2 5512 CM166125.65 16.51.4 1.16.25 6.35 125 M6819A MP-6826-2 55382 CM17226.68 17.27.38 9.65.25 6.35 26 M6843A MP-686-2 55381 CM1726.68 17.27.38 9.65.25 6.35 6 M6889A MP-68125-2 5538 CM172125.68 17.27.38 9.65.25 6.35 125 M814A MP-826-2 5528 CM2326.8 2.32.5 12.7.25 6.35 26 M832A MP-86-2 55848 CM236.8 2.32.5 12.7.25 6.35 6 M868A MP-8125-2 5526 CM23125.8 2.32.5 12.7.25 6.35 125 M919A MP-926-2 55312 CM22926.9 22.86.55 13.97.3 7.62 26 M943A MP-96-2 5559 CM2296.9 22.86.55 13.97.3 7.62 6 M99A MP-9125-2 5531 CM229125.9 22.86.55 13.97.3 7.62 125 M9222A MP-9226-2 55352 CM23426.92 23.6.567 14.4.35 8.89 26 Dimension and Reference Table www.dongbuem.com 41

MPP Cross Reference Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm M9251A MP-926-2 55351 CM2346.92 23.6.567 14.4.35 8.89 6 M9215A MP-92125-2 5535 CM234125.92 23.6.567 14.4.35 8.89 125 M1632A MP-1626-2 55932 CM2726 1.6 26.92.58 14.73.44 11.18 26 M1675A MP-166-2 55894 CM276 1.6 26.92.58 14.73.44 11.18 6 M16157A MP-16125-2 5593 CM27125 1.6 26.92.58 14.73.44 11.18 125 M1328A MP-1326-2 5555 CM3326 1.3 33.2.785 19.94.42 1.67 26 M1361A MP-136-2 5571 CM336 1.3 33.2.785 19.94.42 1.67 6 M13127A MP-13125-2 55548 CM33125 1.3 33.2.785 19.94.42 1.67 125 M13516A MP-13526-2 55587 CM34326 1.35 34.29.58 14.73.44 11.18 26 M13538A MP-1356-2 55586 CM3436 1.35 34.29.58 14.73.44 11.18 6 M13579A MP-135125-2 55585 CM343125 1.35 34.29.58 14.73.44 11.18 125 M14124A MP-14126-2 55326 CM35826 1.41 35.81.88 22.35.412 1.46 26 M14156A MP-1416-2 5576 CM3586 1.41 35.81.88 22.35.412 1.46 6 M141127A MP-141125-2 55324 CM358125 1.41 35.81.88 22.35.412 1.46 125 M15735A MP-15726-2 55256 CM426 1.57 39.38.95 24.13.57 14.48 26 M15781A MP-1576-2 5583 CM46 1.57 39.38.95 24.13.57 14.48 6 M157168A MP-157125-2 55254 CM4125 1.57 39.38.95 24.13.57 14.48 125 M18459A MP-18426-2 5544 CM46726 1.84 46.72.95 24.13.71 18.3 26 M184135A MP-1846-2 55439 CM4676 1.84 46.72.95 24.13.71 18.3 6 M184281A MP-184125-2 55438 CM467125 1.84 46.72.95 24.13.71 18.3 125 M18437A MP-18526-2 5591 CM46826 1.84 46.72 1.13 28.7.6 15.24 26 M18486A MP-1856-2 559 CM4686 1.84 46.72 1.13 28.7.6 15.24 6 M184178A MP-185125-2 5589 CM468125 1.84 46.72 1.13 28.7.6 15.24 125 M232A MP-226-2 55717 CM5826 2. 5.8 1.25 31.75.53 13.46 26 M273A MP-26-2 55716 CM586 2. 5.8 1.25 31.75.53 13.46 6 M2152A MP-2125-2 55715 CM58125 2. 5.8 1.25 31.75.53 13.46 125 M2256A MP-22626-2 55191 CM57126 2.25 57.15 1.39 26.39.6 15.24 26 M225138A MP-2266-2 55192 CM5716 2.25 57.15 1.39 26.39.6 15.24 6 M225287A MP-226125-2 55195 CM571125 2.25 57.15 1.39 26.39.6 15.24 125 M22533A MP-22526-2 55111 CM57226 2.25 57.15 1.4 35.56.55 13.97 26 M22575A MP-2256-2 5511 CM5726 2.25 57.15 1.4 35.56.55 13.97 6 M225156A MP-225125-2 5519 CM572125 2.25 57.15 1.4 35.56.55 13.97 125 M24484A N/A 55615 CM6126 2.441 62. 1.283 32.6.984 25. 26 M244193A N/A 55617 CM616 2.441 62. 1.283 32.6.984 25. 6 M24442A N/A 5562 CM61125 2.441 62. 1.283 32.6.984 25. 125 M363A MP-326-2 55868 CM77726 3.63 77.8 1.938 49.23.5 12.7 26 M3668A MP-36-2 55867 CM7776 3.63 77.8 1.938 49.23.5 12.7 6 M36142A MP-3125-2 55866 CM777125 3.63 77.8 1.938 49.23.5 12.7 125 M3637A MP-3126-2 5598 CM77826 3.63 77.8 1.938 49.23.625 15.88 26 M3685A MP-316-2 5597 CM7786 3.63 77.8 1.938 49.23.625 15.88 6 M36178A MP-31125-2 5596 CM778125 3.63 77.8 1.938 49.23.625 15.88 125 M421A MP-4126-2 N/A N/A 4. 12.1 2.236 56.8.535 13.59 14 M44A MP-416-2 N/A N/A 4. 12.1 2.236 56.8.535 13.59 26 M492A MP-41125-2 N/A N/A 4. 12.1 2.236 56.8.535 13.59 6 M425A MP-426-2 5512 CM11626 4. 12.1 2.236 56.8.66 16.78 14 M447A MP-46-2 5599 CM1166 4. 12.1 2.236 56.8.66 16.78 26 M4112A MP-4125-2 5598 CM116125 4. 12.1 2.236 56.8.66 16.78 6 42 Dongbu Electronic Materials

High Flux Cross Reference Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm H1413A HF-146-8 N/A CH356.14 3.56.7 1.78.6 1.52 6 H1426A HF-14125-8 N/A CH35125.14 3.56.7 1.78.6 1.52 125 H157A HF-1526-8 N/A N/A.155 3.94.88 2.24.1 2.54 26 H1517A HF-156-8 N/A CH396.155 3.94.88 2.24.1 2.54 6 H1535A HF-15125-8 N/A CH39125.155 3.94.88 2.24.1 2.54 125 H189A HF-1826-8 N/A N/A.183 4.65.93 2.36.1 2.54 26 H182A HF-186-8 N/A CH466.183 4.65.93 2.36.1 2.54 6 H1842A HF-18125-8 N/A CH46125.183 4.65.93 2.36.1 2.54 125 H251A HF-2526-8 5822 N/A.25 6.35.11 2.79.11 2.79 26 H2524A HF-256-8 5821 CH636.25 6.35.11 2.79.11 2.79 6 H255A HF-25125-8 582 CH63125.25 6.35.11 2.79.11 2.79 125 H2611A HF-2726-8 58242 CH6626.26 6.6.15 2.67.1 2.54 26 H2626A HF-276-8 58241 CH666.26 6.6.15 2.67.1 2.54 6 H2654A HF-27125-8 5824 CH66125.26 6.6.15 2.67.1 2.54 125 H2621A HF-2626-8 58272 CH6726.26 6.6.15 2.67.188 4.78 26 H265A HF-266-8 58271 CH676.26 6.6.15 2.67.188 4.78 6 H2613A HF-26125-8 5827 CH67125.26 6.6.15 2.67.188 4.78 125 H3111A HF-3126-8 5832 CH7826.31 7.87.156 3.96.125 3.18 26 H3125A HF-316-8 5831 CH786.31 7.87.156 3.96.125 3.18 6 H3152A HF-31125-8 583 CH78125.31 7.87.156 3.96.125 3.18 125 H3811A HF-3926-8 58282 CH9626.38 9.65.188 4.78.125 3.18 26 H3825A HF-396-8 58281 CH966.38 9.65.188 4.78.125 3.18 6 H3853A HF-39125-8 5828 CH96125.38 9.65.188 4.78.125 3.18 125 H3814A HF-3826-8 58292 CH9726.38 9.65.188 4.78.156 3.96 26 H3832A HF-386-8 58291 CH976.38 9.65.188 4.78.156 3.96 6 H3866A HF-38125-8 5829 CH97125.38 9.65.188 4.78.156 3.96 125 H414A HF-426-2 5842 CH1226.4 1.16.2 5.8.156 3.96 26 H432A HF-46-2 5841 CH126.4 1.16.2 5.8.156 3.96 6 H466A HF-4125-2 584 CH12125.4 1.16.2 5.8.156 3.96 125 H4411A HF-4426-2 58132 CH11226.44 11.18.25 6.35.156 3.96 26 H4426A HF-446-2 58131 CH1126.44 11.18.25 6.35.156 3.96 6 H4453A HF-44125-2 5813 CH112125.44 11.18.25 6.35.156 3.96 125 H512A HF-526-2 5852 CH12726.5 12.7.3 7.62.187 4.75 26 H527A HF-56-2 5851 CH1276.5 12.7.3 7.62.187 4.75 6 H556A HF-5125-2 585 CH127125.5 12.7.3 7.62.187 4.75 125 H6515A HF-6526-2 58122 CH16626.65 16.51.4 1.16.25 6.35 26 H6535A HF-656-2 58121 CH1666.65 16.51.4 1.16.25 6.35 6 H6572A HF-65125-2 5812 CH166125.65 16.51.4 1.16.25 6.35 125 H6819A HF-6826-2 58382 CH17226.68 17.27.38 9.65.25 6.35 26 H6843A HF-686-2 58381 CH1726.68 17.27.38 9.65.25 6.35 6 H6889A HF-68125-2 5838 CH172125.68 17.27.38 9.65.25 6.35 125 H814A HF-826-2 5828 CH2326.8 2.32.5 12.7.25 6.35 26 H832A HF-86-2 58848 CH236.8 2.32.5 12.7.25 6.35 6 H868A HF-8125-2 5826 CH23125.8 2.32.5 12.7.25 6.35 125 H919A HF-926-2 58312 CH22926.9 22.86.55 13.97.3 7.62 26 H943A HF-96-2 5859 CH2296.9 22.86.55 13.97.3 7.62 6 H99A HF-9125-2 5831 CH229125.9 22.86.55 13.97.3 7.62 125 H9222A HF-9226-2 58352 CH23426.92 23.6.567 14.4.35 8.89 26 Dimension and Reference Table www.dongbuem.com 43

High Flux Cross Reference Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm H9251A HF-926-2 58351 CH2346.92 23.6.567 14.4.35 8.89 6 H9215A HF-92125-2 5835 CH234125.92 23.6.567 14.4.35 8.89 125 H1632A HF-1626-2 58932 CH2726 1.6 26.92.58 14.73.44 11.18 26 H1675A HF-166-2 58894 CH276 1.6 26.92.58 14.73.44 11.18 6 H16157A HF-16125-2 5893 CH27125 1.6 26.92.58 14.73.44 11.18 125 H1328A HF-1326-2 5855 CH3326 1.3 33.2.785 19.94.42 1.67 26 H1361A HF-136-2 5871 CH336 1.3 33.2.785 19.94.42 1.67 6 H13127A HF-13125-2 58548 CH33125 1.3 33.2.785 19.94.42 1.67 125 H13516A HF-13526-2 58587 CH34326 1.35 34.29.58 14.73.44 11.18 26 H13538A HF-1356-2 58586 CH3436 1.35 34.29.58 14.73.44 11.18 6 H13579A HF-135125-2 58585 CH343125 1.35 34.29.58 14.73.44 11.18 125 H14124A HF-14126-2 58326 CH35826 1.41 35.81.88 22.35.412 1.46 26 H14156A HF-1416-2 5876 CH3586 1.41 35.81.88 22.35.412 1.46 6 H141127A HF-141125-2 58324 CH358125 1.41 35.81.88 22.35.412 1.46 125 H15735A HF-15726-2 58256 CH426 1.57 39.38.95 24.13.57 14.48 26 H15781A HF-1576-2 5883 CH46 1.57 39.38.95 24.13.57 14.48 6 H157168A HF-157125-2 58254 CH4125 1.57 39.38.95 24.13.57 14.48 125 H18459A HF-18426-2 5844 CH46726 1.84 46.72.95 24.13.71 18.3 26 H184135A HF-1846-2 58439 CH4676 1.84 46.72.95 24.13.71 18.3 6 H184281A HF-184125-2 58438 CH467125 1.84 46.72.95 24.13.71 18.3 125 H18437A HF-18526-2 5891 CH46826 1.84 46.72 1.13 28.7.6 15.24 26 H18486A HF-1856-2 589 CH4686 1.84 46.72 1.13 28.7.6 15.24 6 H184178A HF-185125-2 5889 CH468125 1.84 46.72 1.13 28.7.6 15.24 125 H232A HF-226-2 58717 CH5826 2. 5.8 1.25 31.75.53 13.46 26 H273A HF-26-2 58716 CH586 2. 5.8 1.25 31.75.53 13.46 6 H2152A HF-2125-2 58715 CH58125 2. 5.8 1.25 31.75.53 13.46 125 H2256A HF-22626-2 58191 CH57126 2.25 57.15 1.39 26.39.6 15.24 26 H225138A HF-2266-2 58192 CH5716 2.25 57.15 1.39 26.39.6 15.24 6 H225287A HF-226125-2 58195 CH571125 2.25 57.15 1.39 26.39.6 15.24 125 H22533A HF-22526-2 58111 CH57226 2.25 57.15 1.4 35.56.55 13.97 26 H22575A HF-2256-2 5811 CH5726 2.25 57.15 1.4 35.56.55 13.97 6 H225156A HF-225125-2 5819 CH572125 2.25 57.15 1.4 35.56.55 13.97 125 H24484A N/A 58615 CH6126 2.441 62. 1.283 32.6.984 25. 26 H244193A N/A 58617 CH616 2.441 62. 1.283 32.6.984 25. 6 H24442A N/A 5862 CH61125 2.441 62. 1.283 32.6.984 25. 125 H363A HF-326-2 58868 CH77726 3.63 77.8 1.938 49.23.5 12.7 26 H3668A HF-36-2 58867 CH7776 3.63 77.8 1.938 49.23.5 12.7 6 H36142A HF-3125-2 58866 CH777125 3.63 77.8 1.938 49.23.5 12.7 125 H3637A HF-3126-2 5898 CH77826 3.63 77.8 1.938 49.23.625 15.88 26 H3685A HF-316-2 5897 CH7786 3.63 77.8 1.938 49.23.625 15.88 6 H36178A HF-31125-2 5896 CH778125 3.63 77.8 1.938 49.23.625 15.88 125 H421A HF-4126-2 N/A N/A 4. 12.1 2.236 56.8.535 13.59 14 H44A HF-416-2 N/A N/A 4. 12.1 2.236 56.8.535 13.59 26 H492A HF-41125-2 N/A N/A 4. 12.1 2.236 56.8.535 13.59 6 H425A HF-426-2 5812 CH11626 4. 12.1 2.236 56.8.66 16.78 14 H447A HF-46-2 5899 CH1166 4. 12.1 2.236 56.8.66 16.78 26 H4112A HF-4125-2 5898 CH116125 4. 12.1 2.236 56.8.66 16.78 6 44 Dongbu Electronic Materials

Sendust Cross Reference Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm S1413A MS-146-8 77141 CS356.14 3.56.7 1.78.6 1.52 6 S1416A MS-1475-8 77445 CS3575.14 3.56.7 1.78.6 1.52 75 S1419A MS-149-8 77444 CS359.14 3.56.7 1.78.6 1.52 9 S1426A MS-14125-8 7714 CS35125.14 3.56.7 1.78.6 1.52 125 S157A MS-1526-8 N/A N/A.155 3.94.88 2.24.1 2.54 26 S1517A MS-156-8 77151 CS396.155 3.94.88 2.24.1 2.54 6 S1521A MS-1575-8 77155 CS3975.155 3.94.88 2.24.1 2.54 75 S1525A MS-159-8 77154 CS399.155 3.94.88 2.24.1 2.54 9 S1535A MS-15125-8 7715 CS39125.155 3.94.88 2.24.1 2.54 125 S189A MS-1826-8 N/A N/A.183 4.65.93 2.36.1 2.54 26 S182A MS-186-8 77181 CS466.183 4.65.93 2.36.1 2.54 6 S1825A MS-1875-8 77185 CS4675.183 4.65.93 2.36.1 2.54 75 S183A MS-189-8 77184 CS469.183 4.65.93 2.36.1 2.54 9 S1842A MS-18125-8 7718 CS46125.183 4.65.93 2.36.1 2.54 125 S251A MS-2526-8 N/A N/A.25 6.35.11 2.79.11 2.79 26 S2524A MS-256-8 7721 CS636.25 6.35.11 2.79.11 2.79 6 S253A MS-2575-8 77825 CS6375.25 6.35.11 2.79.11 2.79 75 S2536A MS-259-8 77824 CS639.25 6.35.11 2.79.11 2.79 9 S255A MS-25125-8 772 CS63125.25 6.35.11 2.79.11 2.79 125 S2611A MS-2726-8 N/A N/A.26 6.6.15 2.67.1 2.54 26 S2626A MS-276-8 77241 CS666.26 6.6.15 2.67.1 2.54 6 S2632A MS-2775-8 77245 CS6675.26 6.6.15 2.67.1 2.54 75 S2639A MS-279-8 77244 CS669.26 6.6.15 2.67.1 2.54 9 S2654A MS-27125-8 7724 CS66125.26 6.6.15 2.67.1 2.54 125 S2621A MS-2626-8 N/A N/A.26 6.6.15 2.67.188 4.78 26 S265A MS-266-8 77271 CS676.26 6.6.15 2.67.188 4.78 6 S2662A MS-2675-8 77875 CS6775.26 6.6.15 2.67.188 4.78 75 S2674A MS-269-8 77874 CS679.26 6.6.15 2.67.188 4.78 9 S2613A MS-26125-8 7727 CS67125.26 6.6.15 2.67.188 4.78 125 S3111A MS-3126-8 N/A N/A.31 7.87.156 3.96.125 3.18 26 S3125A MS-316-8 7731 CS786.31 7.87.156 3.96.125 3.18 6 S3131A MS-3175-8 77835 CS7875.31 7.87.156 3.96.125 3.18 75 S3137A MS-319-8 77834 CS789.31 7.87.156 3.96.125 3.18 9 S3152A MS-31125-8 773 CS78125.31 7.87.156 3.96.125 3.18 125 S3811A MS-3926-8 N/A N/A.38 9.65.188 4.78.125 3.18 26 S3825A MS-396-8 77281 CS966.38 9.65.188 4.78.125 3.18 6 S3832A MS-3975-8 77885 CS9675.38 9.65.188 4.78.125 3.18 75 S3838A MS-399-8 77884 CS969.38 9.65.188 4.78.125 3.18 9 S3853A MS-39125-8 7728 CS96125.38 9.65.188 4.78.125 3.18 125 S3814A MS-3826-8 N/A N/A.38 9.65.188 4.78.156 3.96 26 S3832A MS-386-8 77291 CS976.38 9.65.188 4.78.156 3.96 6 S384A MS-3875-8 77295 CS9775.38 9.65.188 4.78.156 3.96 75 S3848A MS-389-8 77294 CS979.38 9.65.188 4.78.156 3.96 9 S3866A MS-38125-8 7729 CS97125.38 9.65.188 4.78.156 3.96 125 S414A MS-426-8 N/A N/A.4 1.16.2 5.8.156 3.96 26 S432A MS-46-8 7741 CS126.4 1.16.2 5.8.156 3.96 6 S44A MS-475-8 77845 CS1275.4 1.16.2 5.8.156 3.96 75 S448A MS-49-8 77844 CS129.4 1.16.2 5.8.156 3.96 9 S466A MS-4125-8 774 CS12125.4 1.16.2 5.8.156 3.96 125 S4411A MS-4426-8 N/A CS11226.44 11.18.25 6.35.156 3.96 26 S4426A MS-446-8 77131 CS1126.44 11.18.25 6.35.156 3.96 6 S4432A MS-4475-8 77335 CS11275.44 11.18.25 6.35.156 3.96 75 S4438A MS-449-8 77334 CS1129.44 11.18.25 6.35.156 3.96 9 Dimension and Reference Table www.dongbuem.com 45

Sendust Cross Reference Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm S4453A MS-44125-8 7713 CS112125.44 11.18.25 6.35.156 3.96 125 S512A MS-526-2 N/A CS12726.5 12.7.3 7.62.187 4.75 26 S527A MS-56-2 7751 CS1276.5 12.7.3 7.62.187 4.75 6 S534A MS-575-2 7755 CS12775.5 12.7.3 7.62.187 4.75 75 S54A MS-59-2 7754 CS1279.5 12.7.3 7.62.187 4.75 9 S556A MS-5125-2 775 CS127125.5 12.7.3 7.62.187 4.75 125 S6515A MS-6526-2 N/A CS16626.65 16.51.4 1.16.25 6.35 26 S6535A MS-656-2 77121 CS1666.65 16.51.4 1.16.25 6.35 6 S6543A MS-6575-2 77225 CS16675.65 16.51.4 1.16.25 6.35 75 S6552A MS-659-2 77224 CS1669.65 16.51.4 1.16.25 6.35 9 S6572A MS-65125-2 7712 CS166125.65 16.51.4 1.16.25 6.35 125 S6819A MS-6826-2 N/A CS17226.68 17.27.38 9.65.25 6.35 26 S6843A MS-686-2 77381 CS1726.68 17.27.38 9.65.25 6.35 6 S6853A MS-6875-2 77385 CS17275.68 17.27.38 9.65.25 6.35 75 S6864A MS-689-2 77384 CS1729.68 17.27.38 9.65.25 6.35 9 S6889A MS-68125-2 7738 CS172125.68 17.27.38 9.65.25 6.35 125 S814A MS-826-2 N/A CS2326.8 2.32.5 12.7.25 6.35 26 S832A MS-86-2 77848 CS236.8 2.32.5 12.7.25 6.35 6 S841A MS-875-2 77211 CS2375.8 2.32.5 12.7.25 6.35 75 S849A MS-89-2 7721 CS239.8 2.32.5 12.7.25 6.35 9 S868A MS-8125-2 7726 CS23125.8 2.32.5 12.7.25 6.35 125 S919A MS-926-2 77312 CS22926.9 22.86.55 13.97.3 7.62 26 S943A MS-96-2 7759 CS2296.9 22.86.55 13.97.3 7.62 6 S954A MS-975-2 77315 CS22975.9 22.86.55 13.97.3 7.62 75 S965A MS-99-2 77314 CS2299.9 22.86.55 13.97.3 7.62 9 S99A MS-9125-2 7731 CS229125.9 22.86.55 13.97.3 7.62 125 S9222A MS-9226-2 77352 CS23426.92 23.6.567 14.4.35 8.89 26 S9251A MS-926-2 77351 CS2346.92 23.6.567 14.4.35 8.89 6 S9262A MS-9275-2 77355 CS23475.92 23.6.567 14.4.35 8.89 75 S9276A MS-929-2 77354 CS2349.92 23.6.567 14.4.35 8.89 9 S9215A MS-92125-2 7735 CS234125.92 23.6.567 14.4.35 8.89 125 S1632A MS-1626-2 77932 CS2726 1.6 26.92.58 14.73.44 11.18 26 S1675A MS-166-2 77894 CS276 1.6 26.92.58 14.73.44 11.18 6 S1694A MS-1675-2 77935 CS2775 1.6 26.92.58 14.73.44 11.18 75 S16113A MS-169-2 77934 CS279 1.6 26.92.58 14.73.44 11.18 9 S16157A MS-16125-2 7793 CS27125 1.6 26.92.58 14.73.44 11.18 125 S1328A MS-1326-2 7755 CS3326 1.3 33.2.785 19.94.42 1.67 26 S1361A MS-136-2 7771 CS336 1.3 33.2.785 19.94.42 1.67 6 S1376A MS-1375-2 77553 CS3375 1.3 33.2.785 19.94.42 1.67 75 S1391A MS-139-2 77552 CS339 1.3 33.2.785 19.94.42 1.67 9 S13127A MS-13125-2 77548 CS33125 1.3 33.2.785 19.94.42 1.67 125 S13516A MS-13526-2 77587 CS34326 1.35 34.29.58 14.73.44 11.18 26 S13538A MS-1356-2 77586 CS3436 1.35 34.29.58 14.73.44 11.18 6 S13547A MS-13575-2 7759 CS34375 1.35 34.29.58 14.73.44 11.18 75 S13557A MS-1359-2 77589 CS3439 1.35 34.29.58 14.73.44 11.18 9 S13579A MS-135125-2 77585 CS343125 1.35 34.29.58 14.73.44 11.18 125 S14124A MS-14126-2 77326 CS35826 1.41 35.81.88 22.35.412 1.46 26 S14156A MS-1416-2 7776 CS3586 1.41 35.81.88 22.35.412 1.46 6 S1417A MS-14175-2 77329 CS35875 1.41 35.81.88 22.35.412 1.46 75 S14184A MS-1419-2 77328 CS3589 1.41 35.81.88 22.35.412 1.46 9 S141127A MS-141125-2 77324 CS358125 1.41 35.81.88 22.35.412 1.46 125 S15735A MS-15726-2 77256 CS426 1.57 39.38.95 24.13.57 14.48 26 46 Dongbu Electronic Materials

Sendust Cross Reference Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm S15781A MS-1576-2 7783 CS46 1.57 39.38.95 24.13.57 14.48 6 S15711A MS-15775-2 77259 CS475 1.57 39.38.95 24.13.57 14.48 75 S157121A MS-1579-2 77258 CS49 1.57 39.38.95 24.13.57 14.48 9 S157168A MS-157125-2 77254 CS4125 1.57 39.38.95 24.13.57 14.48 125 S18459A MS-18426-2 7744 CS46726 1.84 46.72.95 24.13.71 18.3 26 S184135A MS-1846-2 77439 CS4676 1.84 46.72.95 24.13.71 18.3 6 S184169A MS-18475-2 77443 CS46775 1.84 46.72.95 24.13.71 18.3 75 S18422A MS-1849-2 77442 CS4679 1.84 46.72.95 24.13.71 18.3 9 S184281A MS-184125-2 77438 CS467125 1.84 46.72.95 24.13.71 18.3 125 S18437A MS-18526-2 7791 CS46826 1.84 46.72 1.13 28.7.6 15.24 26 S18486A MS-1856-2 779 CS4686 1.84 46.72 1.13 28.7.6 15.24 6 S18417A MS-18575-2 7794 CS46875 1.84 46.72 1.13 28.7.6 15.24 75 S184128A MS-1859-2 7793 CS4689 1.84 46.72 1.13 28.7.6 15.24 9 S184178A MS-185125-2 7789 CS468125 1.84 46.72 1.13 28.7.6 15.24 125 S232A MS-226-2 77717 CS5826 2. 5.8 1.25 31.75.53 13.46 26 S273A MS-26-2 77716 CS586 2. 5.8 1.25 31.75.53 13.46 6 S291A MS-275-2 7772 CS5875 2. 5.8 1.25 31.75.53 13.46 75 S219A MS-29-2 77719 CS589 2. 5.8 1.25 31.75.53 13.46 9 S2152A MS-2125-2 77715 CS58125 2. 5.8 1.25 31.75.53 13.46 125 S2256A MS-22626-2 77191 CS57126 2.25 57.15 1.39 26.39.6 15.24 26 S225138A MS-2266-2 77192 CS5716 2.25 57.15 1.39 26.39.6 15.24 6 S225172A MS-22675-2 77193 CS57175 2.25 57.15 1.39 26.39.6 15.24 75 S22527A MS-2269-2 77194 CS5719 2.25 57.15 1.39 26.39.6 15.24 9 S225287A MS-226125-2 77195 CS571125 2.25 57.15 1.39 26.39.6 15.24 125 S22533A MS-22526-2 77111 CS57226 2.25 57.15 1.4 35.56.55 13.97 26 S22575A MS-2256-2 7711 CS5726 2.25 57.15 1.4 35.56.55 13.97 6 S22594A MS-22575-2 77214 CS57275 2.25 57.15 1.4 35.56.55 13.97 75 S225112A MS-2259-2 77213 CS5729 2.25 57.15 1.4 35.56.55 13.97 9 S225156A MS-225125-2 7719 CS572125 2.25 57.15 1.4 35.56.55 13.97 125 S24484A N/A 77615 CS6126 2.441 62. 1.283 32.6.984 25. 26 S244193A N/A 77617 CS616 2.441 62. 1.283 32.6.984 25. 6 S244241A N/A 77618 CS6175 2.441 62. 1.283 32.6.984 25. 75 S244289A N/A 77619 CS619 2.441 62. 1.283 32.6.984 25. 9 S24442A N/A N/A CS61125 2.441 62. 1.283 32.6.984 25. 125 S363A MS-326-2 77868 CS77726 3.63 77.8 1.938 49.23.5 12.7 26 S3668A MS-36-2 77867 CS7776 3.63 77.8 1.938 49.23.5 12.7 6 S3685A MS-375-2 N/A CS77775 3.63 77.8 1.938 49.23.5 12.7 75 S3612A MS-39-2 N/A CS7779 3.63 77.8 1.938 49.23.5 12.7 9 S36142A MS-3125-2 N/A CS777125 3.63 77.8 1.938 49.23.5 12.7 125 S3637A MS-3126-2 7798 CS77826 3.63 77.8 1.938 49.23.625 15.88 26 S3685A MS-316-2 7797 CS7786 3.63 77.8 1.938 49.23.625 15.88 6 S3617A MS-3175-2 N/A CS77875 3.63 77.8 1.938 49.23.625 15.88 75 S36128A MS-319-2 N/A CS7789 3.63 77.8 1.938 49.23.625 15.88 9 S36178A MS-31125-2 7796 CS778125 3.63 77.8 1.938 49.23.625 15.88 125 S421A MS-4114-2 N/A N/A 4. 12.1 2.236 56.8.535 13.59 14 S44A MS-4126-2 N/A N/A 4. 12.1 2.236 56.8.535 13.59 26 S454A N/A N/A N/A 4. 12.1 2.236 56.8.535 13.59 35 S492A MS-416-2 N/A N/A 4. 12.1 2.236 56.8.535 13.59 6 S425A MS-414-2 N/A N/A 4. 12.1 2.236 56.8.66 16.78 14 S447A MS-426-2 7712 CS11626 4. 12.1 2.236 56.8.66 16.78 26 S463A N/A N/A N/A 4. 12.1 2.236 56.8.66 16.78 35 S4112A MS-46-2 7799 CS1166 4. 12.1 2.236 56.8.66 16.78 6 Dimension and Reference Table www.dongbuem.com 47

Power Flux Cross Reference Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm W1411A N/A N/A N/A.14 3.56.7 1.78.6 1.52 5 W1413A FS-146-8 78141 CK356.14 3.56.7 1.78.6 1.52 6 W1419A FS-149-8 78444 CK359.14 3.56.7 1.78.6 1.52 9 W1514A N/A N/A N/A.155 3.94.88 2.24.1 2.54 5 W1517A FS-156-8 78151 CK396.155 3.94.88 2.24.1 2.54 6 W1525A FS-159-8 78154 CK399.155 3.94.88 2.24.1 2.54 9 W1817A N/A N/A N/A.183 4.65.93 2.36.1 2.54 5 W182A FS-186-8 78181 CK466.183 4.65.93 2.36.1 2.54 6 W183A FS-189-8 78184 CK469.183 4.65.93 2.36.1 2.54 9 W252A N/A N/A N/A.25 6.35.11 2.79.11 2.79 5 W2524A FS-256-8 7821 CK636.25 6.35.11 2.79.11 2.79 6 W2536A FS-259-8 78824 CK639.25 6.35.11 2.79.11 2.79 9 W2622A N/A N/A N/A.26 6.6.15 2.67.1 2.54 5 W2626A FS-276-8 78241 CK666.26 6.6.15 2.67.1 2.54 6 W2639A FS-279-8 78244 CK669.26 6.6.15 2.67.1 2.54 9 W2641A N/A N/A N/A.26 6.6.15 2.67.188 4.78 5 W265A FS-266-8 78271 CK676.26 6.6.15 2.67.188 4.78 6 W2674A FS-269-8 78874 CK679.26 6.6.15 2.67.188 4.78 9 W3121A N/A N/A N/A.31 7.87.156 3.96.125 3.18 5 W3125A FS-316-8 7831 CK786.31 7.87.156 3.96.125 3.18 6 W3137A FS-319-8 78834 CK789.31 7.87.156 3.96.125 3.18 9 W3821A N/A N/A N/A.38 9.65.188 4.78.125 3.18 5 W3825A FS-396-8 78281 CK966.38 9.65.188 4.78.125 3.18 6 W3838A FS-399-8 78884 CK969.38 9.65.188 4.78.125 3.18 9 W3826A N/A N/A N/A.38 9.65.188 4.78.156 3.96 5 W3832A FS-386-8 78291 CK976.38 9.65.188 4.78.156 3.96 6 W3848A FS-389-8 78294 CK979.38 9.65.188 4.78.156 3.96 9 W426A N/A N/A N/A.4 1.16.2 5.8.156 3.96 5 W432A FS-46-8 7841 CK126.4 1.16.2 5.8.156 3.96 6 W448A FS-49-8 78844 CK129.4 1.16.2 5.8.156 3.96 9 W4421A N/A N/A N/A.44 11.18.25 6.35.156 3.96 5 W4426A FS-446-8 78131 CK1126.44 11.18.25 6.35.156 3.96 6 W4438A FS-449-8 78334 CK1129.44 11.18.25 6.35.156 3.96 9 W522A N/A N/A N/A.5 12.7.3 7.62.187 4.75 5 W527A FS-56-2 7851 CK1276.5 12.7.3 7.62.187 4.75 6 W54A FS-59-2 7854 CK1279.5 12.7.3 7.62.187 4.75 9 W6529A N/A N/A N/A.65 16.51.4 1.16.25 6.35 5 W6535A FS-656-2 78121 CK1666.65 16.51.4 1.16.25 6.35 6 W6552A FS-659-2 78224 CK1669.65 16.51.4 1.16.25 6.35 9 W6835A N/A N/A N/A.68 17.27.38 9.65.25 6.35 5 W6843A FS-686-2 78381 CK1726.68 17.27.38 9.65.25 6.35 6 W6864A FS-689-2 78384 CK1729.68 17.27.38 9.65.25 6.35 9 W826A N/A N/A N/A.8 2.32.5 12.7.25 6.35 5 W832A FS-86-2 78848 CK236.8 2.32.5 12.7.25 6.35 6 W849A FS-89-2 7821 CK239.8 2.32.5 12.7.25 6.35 9 W935A N/A N/A N/A.9 22.86.55 13.97.3 7.62 5 W943A FS-96-2 7859 CK2296.9 22.86.55 13.97.3 7.62 6 W965A FS-99-2 78314 CK2299.9 22.86.55 13.97.3 7.62 9 48 Dongbu Electronic Materials

Power Flux Cross Reference Dongbu Arnold Mag-Inc CSC O.D I.D Height Inch mm Inch mm Inch mm Perm W9242A N/A N/A N/A.92 23.6.567 14.4.35 8.89 5 W9251A FS-926-2 78351 CK2346.92 23.6.567 14.4.35 8.89 6 W9276A FS-929-2 78354 CK2349.92 23.6.567 14.4.35 8.89 9 W1662A N/A N/A N/A 1.6 26.92.58 14.73.44 11.18 5 W1675A FS-166-2 78894 CK276 1.6 26.92.58 14.73.44 11.18 6 W16113A FS-169-2 78934 CK279 1.6 26.92.58 14.73.44 11.18 9 W135A N/A N/A N/A 1.3 33.2.785 19.94.42 1.67 5 W1361A FS-136-2 7871 CK336 1.3 33.2.785 19.94.42 1.67 6 W1391A FS-139-2 78522 CK339 1.3 33.2.785 19.94.42 1.67 9 W13531A N/A N/A N/A 1.35 34.29.58 14.73.44 11.18 5 W13538A FS-1356-2 78586 CK3436 1.35 34.29.58 14.73.44 11.18 6 W13557A FS-1359-2 78589 CK3439 1.35 34.29.58 14.73.44 11.18 9 W14147A N/A N/A N/A 1.41 35.81.88 22.35.412 1.46 5 W14156A FS-1416-2 7876 CK3586 1.41 35.81.88 22.35.412 1.46 6 W14184A FS-1419-2 78328 CK3589 1.41 35.81.88 22.35.412 1.46 9 W15767A N/A N/A N/A 1.57 39.38.95 24.13.57 14.48 5 W15781A FS-1576-2 7883 CK46 1.57 39.38.95 24.13.57 14.48 6 W157121A FS-1579-2 78258 CK49 1.57 39.38.95 24.13.57 14.48 9 W184112A N/A N/A N/A 1.84 46.72.95 24.13.71 18.3 5 W184135A FS-1846-2 78439 CK4676 1.84 46.72.95 24.13.71 18.3 6 W18422A FS-1849-2 78442 CK4679 1.84 46.72.95 24.13.71 18.3 9 W1847A N/A N/A N/A 1.84 46.72 1.13 28.7.6 15.24 5 W18486A FS-1856-2 789 CK4686 1.84 46.72 1.13 28.7.6 15.24 6 W184128A FS-1859-2 7993 CK4689 1.84 46.72 1.13 28.7.6 15.24 9 W26A N/A N/A N/A 2. 5.8 1.25 31.75.53 13.46 5 W273A FS-26-2 78716 CK586 2. 5.8 1.25 31.75.53 13.46 6 W219A FS-29-2 78719 CK589 2. 5.8 1.25 31.75.53 13.46 9 W225115A N/A N/A N/A 2.25 57.15 1.39 26.39.6 15.24 5 W225138A FS-2266-2 78192 CK5716 2.25 57.15 1.39 26.39.6 15.24 6 W22527A FS-2269-2 78194 CK5719 2.25 57.15 1.39 26.39.6 15.24 9 W22562A N/A N/A N/A 2.25 57.15 1.4 35.56.55 13.97 5 W22575A FS-2256-2 7811 CK5726 2.25 57.15 1.4 35.56.55 13.97 6 W225112A FS-2259-2 78213 CK5729 2.25 57.15 1.4 35.56.55 13.97 9 W24445A N/A N/A N/A 2.441 62. 1.283 32.6.984 25. 14 W24484A N/A N/A CK6126 2.441 62. 1.283 32.6.984 25. 26 W244193A N/A N/A CK616 2.441 62. 1.283 32.6.984 25. 6 W244241A N/A N/A CK6175 2.441 62. 1.283 32.6.984 25. 75 W244289A N/A N/A CK619 2.441 62. 1.283 32.6.984 25. 9 W3656A N/A N/A N/A 3.63 77.8 1.938 49.23.5 12.7 5 W3668A FS-36-2 78867 CK7776 3.63 77.8 1.938 49.23.5 12.7 6 W3612A FS-39-2 N/A CK7779 3.63 77.8 1.938 49.23.5 12.7 9 W3671A N/A N/A N/A 3.63 77.8 1.938 49.23.625 15.88 5 W3685A FS-316-2 7897 CK7786 3.63 77.8 1.938 49.23.625 15.88 6 W36128A FS-319-2 N/A CK7789 3.63 77.8 1.938 49.23.625 15.88 9 W477A N/A N/A N/A 4. 12.1 2.236 56.8.535 13.59 5 W492A FS-416-2 N/A N/A 4. 12.1 2.236 56.8.535 13.59 6 W49A N/A N/A N/A 4. 12.1 2.236 56.8.66 16.78 5 W4112A FS-46-2 N/A CK1166 4. 12.1 2.236 56.8.66 16.78 6 Dimension and Reference Table www.dongbuem.com 49

.14.7.6 (inch) 3.56 1.78 1.52 (mm).14.7 Core Dimensions (after Finish) O.D.(max.) 4.19 mm.165 in I.D.(min.) 1.27 mm.5 in HT.(max.) 2.16 mm.85 in.6 Physical Constant Window Area.18 cm 2 3552 c.mils Cross Section Area.13 cm 2.2 in 2 M1426A Path Length.817 cm.322 in Volume.11 cm 3.1 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 - - - - - 26 - - - - - 35 - - - - - 5 11 - - - W1411A 6 13 M1413A H1413A S1413A W1413A 75 16 - - S1416A - 9 19 - - S1419A W1419A 125 26 M1426A H1426A S1426A - Single Layer 3 13.3191 4.78 2.75 31 14.4328 4.72 2.69 32 16.6232 4.67 2.64 33 18.8849 4.62 2.59 34 21.1315 4.57 2.54 35 24.18766 4.53 2.5 36 28.2757 4.49 2.46 37 31.3864 4.47 2.44 Single Layer 38 35.54734 4.44 2.41 39 4.7961 4.41 2.38 4 46 1.14566 4.38 2.35 41 52 1.63392 4.36 2.33 42 59 2.33657 4.34 2.31 43 66 3.2971 4.33 2.3 44 72 4.53514 4.32 2.29 45 84 6.68976 4.3 2.27 AL value vs. DC Bias 4 35 A L (nh/n 2 ) 3 25 2 15 H1426A M1426A S1426A 1 5 H1413A W1413A M1413A S1413A 1 2 3 4 5 6 7 8 NI(AT) 5 Dongbu Electronic Materials

.155.88.1 (inch) 3.94 2.24 2.54 (mm).155.88 Core Dimensions (after Finish) O.D.(max.) 4.57 mm.18 in I.D.(min.) 1.73 mm.68 in HT.(max.) 3.18 mm.125 in.1 Physical Constant Window Area.3 cm 2 5921 c.mils Cross Section Area.21 cm 2.3 in 2 M1535A Path Length.942 cm.371 in Volume.19 cm 3.1 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 - - - - - 26 7 M157A H157A - - 35 9 - - S159A - 5 14 - - - W1514A 6 17 M1517A H1517A S1517A W1517A 75 21 - - S1521A - 9 25 - - S1525A W1525A 125 35 M1535A H1535A S1535A - Single Layer 28 13.2547 5.3 3.91 29 15.3698 5.23 3.84 3 17.532 5.16 3.77 31 2.7857 5.1 3.71 32 22.1889 5.5 3.66 33 25.15617 5. 3.61 34 29.22838 4.95 3.56 35 33.32789 4.91 3.52 Single Layer 36 37.46294 4.87 3.48 37 41.64878 4.85 3.46 38 43.8545 4.82 3.43 39 53 1.33115 4.79 3.4 4 61 1.9353 4.76 3.37 41 68 2.7151 4.74 3.35 42 78 3.92527 4.72 3.33 43 87 5.52276 4.71 3.32 A L (nh/n 2 ) 45 4 35 3 25 2 H1535A M1535A S1535A AL value vs. DC Bias Standard MPC Toroidal Series 15 1 5 H1517A W1517A M1517A S1517A 1 2 3 4 5 6 7 8 9 1 NI(AT) www.dongbuem.com 51

.183.93.1 (inch) 4.65 2.36 2.54 (mm) 1.183.93 Core Dimensions (after Finish) O.D.(max.) 5.28 mm.28 in I.D.(min.) 1.85 mm.73 in HT.(max.) 3.18 mm.125 in.1 Physical Constant Window Area.29 cm 2 5723 c.mils Cross Section Area.28 cm 2.4 in 2 M1842A Path Length 1.62 cm.418 in Volume.3 cm 3.2 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 5 M185A H185A S185A - 26 9 M189A H189A S189A - 35 12 - - S1812A - 5 17 - - - W1817A 6 2 M182A H182A S182A W182A 75 25 - - S1825A - 9 3 - - S183A W183A 125 42 M1842A H1842A S1842A - Single Layer 28 13.2711 6.1 3.91 29 15.3936 5.94 3.84 3 17.5642 5.87 3.77 31 19.7943 5.81 3.71 32 22.11587 5.76 3.66 33 24.15954 5.71 3.61 34 28.23465 5.66 3.56 35 32.33834 5.62 3.52 Single Layer 36 36.47932 5.58 3.48 37 4.67355 5.56 3.46 38 45.95159 5.53 3.43 39 52 1.38979 5.5 3.4 4 59 1.98698 5.47 3.37 41 67 2.84674 5.45 3.35 42 76 4.699 5.43 3.33 43 85 5.74184 5.42 3.32 AL value vs. DC Bias 45 4 35 3 H1842A M1842A S1842A A L (nh/n 2 ) 25 2 15 1 5 H182A W182A M182A S182A 1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 NI(AT) 52 Dongbu Electronic Materials

.25.11.11 (inch) 6.35 2.79 2.79 (mm).25.11 Core Dimensions (after Finish) O.D.(max.) 6.99 mm.275 in I.D.(min.) 2.29 mm.9 in HT.(max.) 3.43 mm.135 in.11 Physical Constant Window Area.41 cm 2 891 c.mils Cross Section Area.47 cm 2.7 in 2 M255A Path Length 1.361 cm.536 in Volume.64 cm 3.4 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 6 M256A H256A S256A - 26 1 M251A H251A S251A - 35 14 - - S2514A - 5 2 - - - W252A 6 24 M2524A H2524A S2524A W2524A 75 3 - - S253A - 9 36 - - S2536A W2536A 125 5 M255A H255A S255A - Single Layer 27 14.2735 7.81 4.25 28 16.394 7.72 4.16 29 18.5577 7.65 4.9 3 21.823 7.58 4.2 31 23.11353 7.52 3.96 32 26.1617 7.47 3.91 33 3.23548 7.42 3.86 34 34.33644 7.37 3.81 Single Layer 35 38.47442 7.33 3.77 36 44.69175 7.29 3.73 37 48.95439 7.27 3.71 38 54 1.34836 7.24 3.68 39 62 1.95665 7.21 3.65 4 71 2.82341 7.18 3.62 41 8 4.1363 7.16 3.6 42 91 5.75422 7.14 3.58 A L (nh/n 2 ) 55 5 45 4 35 3 25 2 H255A M255A S255A AL value vs. DC Bias Standard MPC Toroidal Series 15 1 5 H2524A W2524A M2524A S2524A 2 4 6 8 1 12 14 16 18 2 NI(AT) www.dongbuem.com 53

.26.15.1 (inch) 6.6 2.67 2.54 (mm).26.15 Core Dimensions (after Finish) O.D.(max.) 7.24 mm.285 in I.D.(min.) 2.16 mm.85 in HT.(max.) 3.18 mm.125 in.1 Physical Constant Window Area.38 cm 2 7499 c.mils M2654A Cross Section Area.48 cm 2.7 in 2 Path Length 1.363 cm.537 in Volume.64 cm 3.4 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 6 M266A H266A S266A - 26 11 M2611A H2611A S2611A - 35 16 - - S2616A - 5 22 - - - W2622A 6 26 M2626A H2626A S2626A W2626A 75 32 - - S2632A - 9 39 - - S2639A W2639A 125 54 M2654A H2654A S2654A - Single Layer 26 12.184 8.14 4.8 27 13.2513 8.6 4. 28 16.3899 7.97 3.91 29 17.5212 7.9 3.84 3 2.7756 7.83 3.77 31 22.1747 7.77 3.71 32 25.15387 7.72 3.66 33 28.2175 7.67 3.61 Single Layer 34 33.32316 7.62 3.56 35 37.45714 7.58 3.52 36 42.65345 7.54 3.48 37 46.9513 7.52 3.46 38 52 1.28494 7.49 3.43 39 6 1.87387 7.46 3.4 4 68 2.6764 7.43 3.37 - - - - - AL value vs. DC Bias 6 55 A L (nh/n 2 ) 5 45 4 35 3 25 H2654A M2654A S2654A 2 15 1 5 H2626A W2626A M2626A S2626A 2 4 6 8 1 12 14 16 18 2 22 NI(AT) 54 Dongbu Electronic Materials

.26.15.188 (inch) 6.6 2.67 4.78 (mm).26.15 Core Dimensions (after Finish) O.D.(max.) 7.24mm.285 in I.D.(min.) 2.16 mm.85 in HT.(max.) 5.54 mm.218 in.188 Physical Constant Window Area.38 cm 2 7499 c.mils M2613A Cross Section Area.92 cm 2.14 in 2 Path Length 1.363 cm.537 in Volume.125 cm 3.8 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 12 M2612A H2612A S2612A - 26 21 M2621A H2621A S2621A - 35 29 - - S2629A - 5 41 - - - W2641A 6 5 M265A H265A S265A W265A 75 62 - - S2662A - 9 74 - - S2674A W2674A 125 13 M2613A H2613A S2613A - Single Layer 26 12.2599 8.14 6.44 27 13.355 8.6 6.36 28 16.557 7.97 6.27 29 17.7362 7.9 6.2 3 2.1956 7.83 6.13 31 22.15181 7.77 6.7 32 25.21735 7.72 6.2 33 28.3723 7.67 5.97 Single Layer 34 33.45649 7.62 5.92 35 37.64575 7.58 5.88 36 42.9236 7.54 5.84 37 46 1.27858 7.52 5.82 38 52 1.8159 7.49 5.79 39 6 2.6471 7.46 5.76 4 68 3.7815 7.43 5.73 - - - - - A L (nh/n 2 ) 11 1 9 8 7 6 5 4 H2613A M2613A S2613A AL value vs. DC Bias Standard MPC Toroidal Series 3 2 1 H265A W265A M265A S265A 2 4 6 8 1 12 14 16 18 2 22 NI(AT) www.dongbuem.com 55

.31.156.125 (inch) 7.87 3.96 3.18 (mm).31.156 Core Dimensions (after Finish) O.D.(max.) 8.51 mm.335 in I.D.(min.) 3.43 mm.135 in HT.(max.) 3.81 mm.15 in.125 Physical Constant Window Area.92 cm 2 18156 c.mils M3152A Cross Section Area.61 cm 2.9 in 2 Path Length 1.787 cm.74 in Volume.19 cm 3.7 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 6 M316A H316A S316A - 26 11 M3111A H3111A S3111A - 35 15 - - S3115A - 5 21 - - - W3121A 6 25 M3125A H3125A S3125A W3125A 75 31 - - S3131A - 9 37 - - S3137A W3137A 125 52 M3152A H3152A S3152A - Single Layer 23 13.113 9.77 5.7 24 15.164 9.64 4.94 25 18.2423 9.52 4.82 26 2.344 9.41 4.71 27 23.4936 9.33 4.63 28 26.733 9.24 4.54 29 29.987 9.17 4.47 3 33.1427 9.1 4.4 Single Layer 31 37.265 9.4 4.34 32 41.2814 8.99 4.29 33 46.39667 8.94 4.24 34 53.57617 8.89 4.19 35 6.82296 8.85 4.15 36 67 1.15722 8.81 4.11 37 73 1.59461 8.79 4.9 38 83 2.27686 8.76 4.6 a AL value vs. DC Bias 55 5 45 A L (nh/n 2 ) 4 35 3 25 2 H3152A M3152A S3152A 15 1 5 H3125A W3125A M3125A S3125A 2 4 6 8 1 12 14 16 18 2 22 24 26 NI(AT) 56 Dongbu Electronic Materials

.38.188.125 (inch) 9.65 4.78 3.18 (mm).38.188 Core Dimensions (after Finish) O.D.(max.) 1.29mm.45 in I.D.(min.) 4.27 mm.168 in HT.(max.) 3.81 mm.15 in.125 Physical Constant Window Area.142 cm 2 2824 c.mils M3853A Cross Section Area.75 cm 2.12 in 2 Path Length 2.18 cm.858 in Volume.163 cm 3.1 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 6 M386A H386A S386A - 26 11 M3811A H3811A S3811A - 35 15 - - S3815A - 5 21 - - - W3821A 6 25 M3825A H3825A S3825A W3825A 75 32 - - S3832A - 9 38 - - S3838A W3838A 125 53 M3853A H3853A S3853A - A L (nh/n 2 ) 6 55 H3853A 5 M3853A 45 S3853A 4 35 3 25 Single Layer 19 1.36 12.25 5.77 2 12.545 12.5 5.57 21 13.745 11.86 5.38 22 15.184 11.69 5.21 23 18.164 11.55 5.7 24 2.2297 11.42 4.94 25 23.3325 11.3 4.82 26 26.4752 11.19 4.71 27 29.6685 11.11 4.63 AL value vs. DC Bias Single Layer 28 33.9588 11.2 4.54 29 37.13525 1.95 4.47 3 42.19421 1.88 4.4 31 47.27374 1.82 4.34 32 2.38159 1.77 4.29 33 58.53717 1.72 4.24 34 67.78228 1.67 4.19 35 75 1.1484 1.63 4.15 36 84 1.55823 1.59 4.11 Standard MPC Toroidal Series 2 15 1 5 H3825A W3825A M3825A S3825A 2 4 6 8 1 12 14 16 18 2 22 24 26 28 3 NI(AT) www.dongbuem.com 57

.38.188.156 (inch) 9.65 4.78 3.96 (mm).38.188 Core Dimensions (after Finish) O.D.(max.) 1.29 mm.45 in I.D.(min.) 4.27 mm.168 in HT.(max.) 4.6 mm.181 in.156 Physical Constant Window Area.142 cm 2 2824 c.mils M3866A Cross Section Area.94 cm 2.15 in 2 Path Length 2.18 cm.858 in Volume.26 cm 3.13 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 7 M387A H387A S387A - 26 14 M3814A H3814A S3814A - 35 18 - - S3818A - 5 26 - - - W3826A 6 32 M3832A H3832A S3832A W3832A 75 4 - - S384A - 9 48 - - S3848A W3848A 125 66 M3866A H3866A S3866A - Single Layer 2 12.68 12.5 6.36 21 13.831 11.86 6.17 22 15.121 11.69 6. 23 18.183 11.55 5.86 24 2.2563 11.42 5.73 25 23.3711 11.3 5.61 26 26.533 11.19 5.5 27 29.7459 11.11 5.42 Single Layer 28 33.1698 11.2 5.33 29 37.1592 1.95 5.26 3 42.2167 1.88 5.19 31 47.3545 1.82 5.13 32 52.42579 1.77 5.8 33 58.59939 1.72 5.3 34 67.8729 1.67 4.98 35 75 1.23282 1.63 4.94 AL value vs. DC Bias A L (nh/n 2 ) 7 65 6 55 5 45 4 35 3 25 2 15 1 5 H3866A M3866A S3866A H3832A W3832A M3832A S3832A 2 4 6 8 1 12 14 16 18 2 22 24 26 28 3 32 NI(AT) 58 Dongbu Electronic Materials

.4.2.156 (inch) 1.16 5.8 3.96 (mm).4.2 Core Dimensions (after Finish) O.D.(max.) 1.8mm.425 in I.D.(min.) 4.57 mm.18 in HT.(max.) 4.6 mm.181 in.156 Physical Constant Window Area.164 cm 2 32366 c.mils M466A Cross Section Area.1 cm 2.16 in 2 Path Length 2.38 cm.937 in Volume.238 cm 3.15 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 7 M47A H47A S47A - 26 14 M414A H414A S414A - 35 18 - - S418A - 5 26 - - - W426A 6 32 M432A H432A S432A W432A 75 4 - - S44A - 9 48 - - S448A W448A 125 66 M466A H466A S466A - Single Layer 2 13.668 12.56 6.36 21 15.972 12.37 6.17 22 17.139 12.2 6. 23 19.1958 12.6 5.86 24 22.2858 11.93 5.73 25 25.489 11.81 5.61 26 28.5789 11.7 5.5 27 31.884 11.62 5.42 Single Layer 28 36.11832 11.53 5.33 29 4.16541 11.46 5.26 3 45.23538 11.39 5.19 31 5.32943 11.33 5.13 32 56.46488 11.28 5.8 33 63.665 11.23 5.3 34 72.9598 11.18 4.98 35 81 1.34982 11.14 4.94 A L (nh/n 2 ) 7 65 6 55 5 45 4 35 3 H466A M466A M467A AL value vs. DC Bias Standard MPC Toroidal Series 25 2 M468A 15 1 5 M469A M47A M471A 2 4 6 8 1 12 14 16 18 2 22 24 26 28 3 32 34 NI(AT) www.dongbuem.com 59

.44.25.156 (inch) 11.18 6.35 3.96 (mm).44.25 Core Dimensions (after Finish) O.D.(max.) 11.89 mm.468 in I.D.(min.) 5.89 mm.232 in HT.(max.) 4.72 mm.186 in.156 Physical Constant Window Area.273 cm 2 53877 c.mils M4453A Cross Section Area.9 cm 2.14 in 2 Path Length 2.69 cm 1.59 in Volume.243 cm 3.15 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 6 M446A H446A S446A - 26 11 M4411A H4411A S4411A - 35 15 - - S4415A - 5 21 - - - W4421A 6 26 M4426A H4426A S4426A W4426A 75 32 - - S4432A - 9 38 - - S4438A W4438A 125 53 M4453A H4453A S4453A - Single Layer 17 11.282 14.34 7.17 18 13.42 14.8 6.91 19 15.611 13.85 6.68 2 17.874 13.65 6.48 21 2.1297 13.46 6.29 22 23.1882 13.29 6.12 23 26.2682 13.15 5.98 24 29.377 13.2 5.85 Single Layer 25 33.541 12.9 5.73 26 37.7655 12.79 5.62 27 42.1959 12.71 5.54 28 47.15457 12.62 5.45 29 52.21517 12.55 5.38 3 59.3882 12.48 5.31 31 66.43513 12.42 5.25 32 73.6639 12.37 5.2 AL value vs. DC Bias 55 5 45 A L (nh/n 2 ) 4 35 3 25 2 15 1 5 H4453A M4453A S4453A H4426A W4426A M4426A S4426A 4 8 12 16 2 24 28 32 36 NI(AT) 6 Dongbu Electronic Materials

.5.3.187 (inch) 12.7 7.62 4.75 (mm).5.3 M556A.187 O.D.(max.) Core Dimensions (after Finish) 13.46 mm.53 in I.D.(min.) 6.99 mm.275 in HT.(max.) 5.51 mm.217 in Physical Constant Window Area.383 cm 2 75586 c.mils Cross Section Area.114 cm 2.18 in 2 Path Length 3.12 cm 1.228 in Volume.356 cm 3.22 in 3 Core Information Part Number Single Layer Single Layer Perm. AL value (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 6 M57A H57A S57A - 17 14.46 15.91 7.96 25 4.7416 14.47 6.52 26 12 M512A H512A S512A - 18 16.585 15.65 7.7 26 45.1546 14.36 6.41 35 16 - - S516A - 19 19.877 15.42 7.47 27 5.14779 14.28 6.33 5 22 - - - W522A 2 21.1223 15.22 7.27 28 56.2862 14.19 6.24 6 27 M527A H527A S527A W527A 21 24.1763 15.3 7.8 29 63.2953 14.12 6.17 75 34 - - S534A - 22 28.2596 14.86 6.91 3 71.4297 14.5 6.1 9 4 - - S54A W54A 23 31.3622 14.72 6.77 31 79.58999 13.99 6.4 125 56 M556A H556A S556A - 24 35.5154 14.59 6.64 32 87.81864 13.94 5.99 A L (nh/n 2 ) 6 55 5 45 4 35 3 25 H556A M556A S556A AL value vs. DC Bias Standard MPC Toroidal Series 2 15 1 5 H527A W527A M527A S527A 5 1 15 2 25 3 35 4 45 5 NI(AT) www.dongbuem.com 61

.65.4.25 (inch) 16.51 1.16 6.35 (mm).65.4 Core Dimensions (after Finish) O.D.(max.) 17.4 mm.685 in I.D.(min.) 9.53 mm.375 in HT.(max.) 7.11 mm.28 in.25 Physical Constant Window Area.713 cm 2 14712 c.mils M6572A Cross Section Area.192 cm 2.3 in 2 Path Length 4.11 cm 1.618 in Volume.789 cm 3.48 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 8 M658A H658A S658A - 26 15 M6515A H6515A S6515A - 35 2 - - S652A - 5 29 - - - W6529A 6 35 M6535A H6535A S6535A W6535A 75 43 - - S6543A - 9 52 - - S6552A W6552A 125 72 M6572A H6572A S6572A - Single Layer 14 14.256 2.83 1.54 15 16.368 2.46 1.17 16 18.525 2.14 9.85 17 21.77 19.85 9.56 18 24.118 19.59 9.3 19 27.1575 19.36 9.7 2 3.227 19.16 8.87 21 34.3154 18.97 8.68 Single Layer 22 39.4566 18.8 8.51 23 44.6493 18.66 8.37 24 49.9114 18.53 8.24 25 56.13113 18.41 8.12 26 63.18648 18.3 8.1 27 7.26132 18.22 7.93 28 78.367 18.13 7.84 29 87.5155 18.6 7.77 AL value vs. DC Bias A L (nh/n 2 ) 75 7 65 6 55 5 45 4 35 3 25 2 15 1 5 H6572A M6572A S6572A H6535A W6535A M6535A S6535A 5 1 15 2 25 3 35 4 45 5 55 6 NI(AT) 62 Dongbu Electronic Materials

.68.38.25 (inch) 17.27 9.65 6.35 (mm).68.38 Core Dimensions (after Finish) O.D.(max.) 18.3 mm.71 in I.D.(min.) 9.2 mm.355 in HT.(max.) 7.11 mm.28 in.25 Physical Constant Window Area.576 cm 2 113675 c.mils M6889A Cross Section Area.232 cm 2.36 in 2 Path Length 4.14 cm 1.63 in Volume.96 cm 3.59 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 1 M681A H681A S681A - 26 19 M6819A H6819A S6819A - 35 25 - - S6825A - 5 35 - - - W6835A 6 43 M6843A H6843A S6843A W6843A 75 53 - - S6853A - 9 64 - - S6864A W6864A 125 89 M6889A H6889A S6889A - Single Layer 14 13.25 21.46 1.54 15 15.362 21.9 1.17 16 17.521 2.77 9.85 17 19.733 2.48 9.56 18 22.168 2.22 9.3 19 25.1533 19.99 9.7 2 29.2243 19.79 8.87 21 32.3122 19.6 8.68 Single Layer 22 37.4555 19.43 8.51 23 41.6362 19.29 8.37 24 46.8997 19.16 8.24 25 52.1284 19.4 8.12 26 59.18366 18.93 8.1 27 66.25911 18.85 7.93 28 74.36615 18.76 7.84 29 82.515 18.69 7.77 A L (nh/n 2 ) 9 8 7 6 5 4 H6889A M6889A S6889A AL value vs. DC Bias H6843A W6843A M6843A S6843A Standard MPC Toroidal Series 3 2 1 5 1 15 2 25 3 35 4 45 5 55 6 NI(AT) www.dongbuem.com 63

.8.5.25 (inch) 2.32 12.7 6.35 (mm).8.5 Core Dimensions (after Finish) O.D.(max.) 21.1 mm.831 in I.D.(min.) 12.7 mm.475 in HT.(max.) 7.11 mm.28 in.25 Physical Constant Window Area 1.14 cm 2 224982 c.mils M868A Cross Section Area.226 cm 2.35 in 2 Path Length 5.9 cm 2.4 in Volume 1.15 cm 3.7 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 8 M88A H88A S88A - 26 14 M814A H814A S814A - 35 19 - - S819A - 5 26 - - - W826A 6 32 M832A H832A S832A W832A 75 41 - - S841A - 9 49 - - S849A W849A 125 68 M868A H868A S868A - Single Layer 11 12.115 25.86 11.87 12 14.17 25.36 11.37 13 16.244 24.9 1.91 14 18.347 24.53 1.54 15 21.58 24.16 1.17 16 24.737 23.84 9.85 17 27.142 23.55 9.56 18 31.156 23.29 9.3 Single Layer 19 35.2148 23.6 9.7 2 39.319 22.86 8.87 21 45.4394 22.67 8.68 22 5.6161 22.5 8.51 23 56.8697 22.36 8.37 24 63.12333 22.23 8.24 25 71.17498 22.11 8.12 26 8.24924 22. 8.1 AL value vs. DC Bias A L (nh/n 2 ) 7 65 6 55 5 45 4 35 3 25 2 15 1 5 H868A M868A S868A H832A W832A M832A S832A 5 1 15 2 25 3 35 4 45 5 55 6 65 7 NI(AT) 64 Dongbu Electronic Materials

.9.55.3 (inch) 22.86 13.97 7.62 (mm).9.55 M99A.3 O.D.(max.) Core Dimensions (after Finish) 23.62 mm.93 in I.D.(min.) 13.39 mm.527 in HT.(max.) 8.38 mm.33 in Physical Constant Window Area 1.41 cm 2 278267 c.mils Cross Section Area.331 cm 2.51 in 2 Path Length 5.67 cm 2.232 in Volume 1.88 cm 3.115 in 3 Core Information Part Number Single Layer Single Layer Perm. AL value (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 9 M99A H99A S99A - 11 14.156 28.38 13.14 19 39.2779 25.58 1.34 26 19 M919A H919A S919A - 12 16.225 27.88 12.64 2 44.3955 25.38 1.14 35 25 - - S925A - 13 18.319 27.42 12.18 21 5.5668 25.19 9.95 5 35 - - - W935A 14 21.47 27.5 11.81 22 56.811 25.2 9.78 6 43 M943A H943A S943A W943A 15 24.674 26.68 11.44 23 63.11358 24.88 9.64 75 54 - - S954A - 16 27.962 26.36 11.12 24 71.16135 24.75 9.51 9 65 - - S965A W965A 17 31.1389 26.7 1.83 25 8.22888 24.63 9.39 125 9 M99A H99A S99A - 18 35.1974 25.81 1.57 26 89.32188 24.52 9.28 A L (nh/n 2 ) 1 9 8 7 6 5 4 H99A M99A S99A AL value vs. DC Bias H943A W943A M943A S943A Standard MPC Toroidal Series 3 2 1 5 1 15 2 25 3 35 4 45 5 55 6 65 7 75 NI(AT) www.dongbuem.com 65

.92.567.35 (inch) 23.6 14.4 8.89 (mm).92.567 Core Dimensions (after Finish) O.D.(max.) 24.3 mm.957 in I.D.(min.) 13.77 mm.542 in HT.(max.) 9.7 mm.382 in.35 Physical Constant Window Area 1.49 cm 2 29455 c.mils M9215A Cross Section Area.388 cm 2.6 in 2 Path Length 5.88 cm 2.315 in Volume 2.28 cm 3.139 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 12 M9212A H9212A S9212A - 26 22 M9222A H9222A S9222A - 35 3 - - S923A - 5 42 - - - W9242A 6 51 M9251A H9251A S9251A W9251A 75 63 - - S9263A - 9 76 - - S9276A W9276A 125 15 M9215A H9215A S9215A - Single Layer 1 13.128 29.64 15.4 11 15.185 29.6 14.46 12 17.265 28.56 13.96 13 19.374 28.1 13.5 14 22.546 27.73 13.13 15 25.778 27.36 12.76 16 28.116 27.4 12.44 17 32.159 26.75 12.15 Single Layer 18 36.2252 26.49 11.89 19 4.3161 26.26 11.66 2 46.4585 26.6 11.46 21 51.6411 25.87 11.27 22 58.92 25.7 11.1 23 65.12996 25.56 1.96 24 73.18397 25.43 1.83 25 82.2615 25.31 1.71 AL value vs. DC Bias 11 1 9 A L (nh/n 2 ) 8 7 6 5 H9215A M9215A S9215A 4 3 2 1 H9251A W9251A M9251A S9251A 5 1 15 2 25 3 35 4 45 5 55 6 65 7 75 NI(AT) 66 Dongbu Electronic Materials

1.6.58.44 (inch) 26.92 14.73 11.18 (mm) 1.6.58 M16157A.44 O.D.(max.) Core Dimensions (after Finish) 27.7 mm 1.91 in I.D.(min.) 14.1 mm.555 in HT.(max.) 11.99 mm.472 in Physical Constant Window Area 1.56 cm 2 3787 c.mils Cross Section Area.654 cm 2.11 in 2 Path Length 6.35 cm 2.5 in Volume 4.15 cm 3.253 in 3 Core Information Part Number Single Layer Single Layer Perm. AL value (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 18 M1618A H1618A S1618A - 1 13.16 33.4 17.33 18 37.296 29.89 14.18 26 32 M1632A H1632A S1632A - 11 15.233 32.46 16.75 19 42.4167 29.66 13.95 35 45 - - S1645A - 12 17.333 31.96 16.25 2 47.5882 29.46 13.75 5 62 - - - W1662A 13 2.494 31.5 15.79 21 53.8365 29.27 13.56 6 75 M1675A H1675A S1675A W1675A 14 22.685 31.13 15.42 22 6.1195 29.1 13.39 75 94 - - S1694A - 15 25.977 3.76 15.5 23 66.16568 28.96 13.25 9 113 - - S16113A W16113A 16 29.1439 3.44 14.73 24 75.23732 28.83 13.12 125 157 M16157A H16157A S16157A - 17 33.259 3.15 14.44 25 84.33461 28.71 13. A L (nh/n 2 ) 17 16 15 14 13 12 11 1 9 8 7 6 5 4 3 2 1 H16157A M16157A S16157A AL value vs. DC Bias H1675A W1675A M1675A S1675A Standard MPC Toroidal Series 1 2 3 4 5 6 7 8 9 1 NI(AT) www.dongbuem.com 67

1.3.785.42 (inch) 33.2 19.94 1.67 (mm) 1.3.785 Core Dimensions (after Finish) O.D.(max.) 33.83 mm 1.332 in I.D.(min.) 19.3 mm.76 in HT.(max.) 11.61 mm.457 in.42 Physical Constant Window Area 2.93 cm 2 578243 c.mils M13127A Cross Section Area.672 cm 2.14 in 2 Path Length 8.15 cm 3.29 in Volume 5.48 cm 3.334 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 14 M1314A H1314A S1314A - 26 28 M1328A H1328A S1328A - 35 36 - - S1336A - 5 5 - - - W135A 6 61 M1361A H1361A S1361A W1361A 75 76 - - S1376A - 9 91 - - S1391A W1391A 125 127 M13127A H13127A S13127A - Single Layer 8 15.117 4.51 18.29 9 17.167 39.79 17.57 1 19.235 39.17 16.95 11 22.343 38.59 16.37 12 25.492 38.9 15.87 13 28.694 37.63 15.41 14 32.11 37.26 15.4 15 36.1413 36.89 14.67 Single Layer 16 41.243 36.57 14.35 17 46.2883 36.28 14.6 18 52.413 36.2 13.8 19 58.578 35.79 13.57 2 65.8171 35.59 13.37 21 74.11733 35.4 13.18 22 83.1666 35.23 13.1 23 92.232 35.9 12.87 AL value vs. DC Bias 13 12 11 1 A L (nh/n 2 ) 9 8 7 6 5 4 3 2 1 H13127A M13127A S13127A H1361A W1361A M1361A S1361A 1 2 3 4 5 6 7 8 9 1 12 13 NI(AT) 68 Dongbu Electronic Materials

1.35.58.44 (inch) 34.29 14.7 11.2 (mm) 1.35.58 M13579A.44 O.D.(max.) Core Dimensions (after Finish) 35.1 mm 1.382 in I.D.(min.) 22.56 mm.888 in HT.(max.) 9.83 mm.387 in Physical Constant Window Area 4.1 cm 2 791384 c.mils Cross Section Area.454 cm 2.7 in 2 Path Length 8.95 cm 3.524 in Volume 4.6 cm 3.248 in 3 Core Information Part Number Single Layer Single Layer Perm. AL value (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 9 M1359A H1359A S1359A - 8 18.119 41.78 16.51 16 48.24 37.84 12.57 26 16 M13516A H13516A S13516A - 9 2.167 41.6 15.79 17 54.2886 37.55 12.28 35 22 - - S13522A - 1 23.243 4.44 15.17 18 61.415 37.29 12.2 5 31 - - - W13531A 11 26.346 39.86 14.59 19 69.5866 37.6 11.79 6 38 M13538A H13538A S13538A W13538A 12 3.53 39.36 14.9 2 77.8256 36.86 11.59 75 47 - - S13547A - 13 34.719 38.9 13.63 21 87.11766 36.67 11.4 9 57 - - S13557A W13557A 14 38.114 38.53 13.26 22 98.16725 36.5 11.23 125 79 M13579A H13579A S13579A - 15 43.144 38.16 12.89 23 19.23445 36.36 11.9 A L (nh/n 2 ) 8 7 6 5 4 3 H13579A M13579A S13579A AL value vs. DC Bias H13538A W13538A M13538A S13538A Standard MPC Toroidal Series 2 1 1 2 3 4 5 6 7 8 9 1 11 12 13 14 NI(AT) www.dongbuem.com 69

1.41.88.412 (inch) 35.81 22.35 1.46 (mm) 1.41.88 Core Dimensions (after Finish) O.D.(max.) 36.63 mm 1.442 in I.D.(min.) 21.54 mm.848 in HT.(max.) 11.35 mm.447 in.412 Physical Constant Window Area 3.64 cm 2 718363 c.mils M141117A Cross Section Area.678 cm 2.15 in 2 Path Length 8.98 cm 3.535 in Volume 6.88 cm 3.372 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 13 M14113A H14113A S14113A - 26 24 M14124A H14124A S14124A - 35 33 - - S14133A - 5 47 - - - W14147A 6 56 M14156A H14156A S14156A W14156A 75 7 - - S1417A - 9 84 - - S14184A W14184A 125 117 M141117A H141117A S141117A - Single Layer 9 19.187 42.59 17.31 1 22.273 41.97 16.69 11 25.39 41.39 16.11 12 28.551 4.89 15.61 13 32.794 4.43 15.15 14 36.1128 4.6 14.78 15 41.1611 39.69 14.41 16 46.2295 39.37 14.9 Single Layer 17 52.3262 39.8 13.8 18 58.4581 38.82 13.54 19 65.6485 38.59 13.31 2 73.9186 38.39 13.11 21 82.1315 38.2 12.92 22 93.18627 38.3 12.75 23 13.261 37.89 12.61 24 116.3691 37.76 12.48 AL value vs. DC Bias 12 11 1 A L (nh/n 2 ) 9 8 7 6 5 H141117A M141117A S141117A 4 3 2 1 H14156A W14156A M14156A S14156A 1 2 3 4 5 6 7 8 9 1 12 13 14 NI(AT) 7 Dongbu Electronic Materials

1.57.95.57 (inch) 39.88 24.13 14.48 (mm) 1.57.95 M157168A.57 O.D.(max.) Core Dimensions (after Finish) 4.72mm 1.63 in I.D.(min.) 23.3 mm.917 in HT.(max.) 15.37 mm.65 in Physical Constant Window Area 4.27 cm 2 842695 c.mils Cross Section Area 1.72 cm 2.166 in 2 Path Length 9.84 cm 3.874 in Volume 1.5 cm 3.641 in 3 Core Information Part Number Single Layer Single Layer Perm. AL value (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 19 M15719A H15719A S15719A - 9 21.263 46.68 21.33 17 56.4477 43.17 17.82 26 35 M15735A H15735A S15735A - 1 24.379 46.6 2.71 18 63.6341 42.91 17.56 35 48 - - S15748A - 11 27.537 45.48 2.13 19 71.927 42.68 17.33 5 67 - - - W15767A 12 31.778 44.98 19.63 2 8.1283 42.48 17.13 6 81 M15781A H15781A S15781A W15781A 13 35.117 44.52 19.17 21 9.1824 42.29 16.94 75 11 - - S15711A - 14 39.1557 44.15 18.8 22 11.2578 42.12 16.77 9 121 - - S157121A W157121A 15 44.224 43.78 18.43 23 112.3631 41.98 16.63 125 168 M157168A H157168A S157168A - 16 5.3179 43.46 18.11 24 126.5194 41.85 16.5 A L (nh/n 2 ) 17 16 15 14 13 12 11 1 9 8 7 6 5 4 3 2 1 H157168A M157168A S157168A AL value vs. DC Bias H15781A W15781A M15781A S15781A Standard MPC Toroidal Series 1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 NI(AT) www.dongbuem.com 71

1.84.95.71 (inch) 46.74 24.13 18.3 (mm) 1.84.95 Core Dimensions (after Finish) O.D.(max.) 47.63 mm 1.875 in I.D.(min.) 23.32 mm.918 in HT.(max.) 18.92 mm.745 in.71 Physical Constant Window Area 4.27 cm 2 842695 c.mils M184281A Cross Section Area 1.99 cm 2.38 in 2 Path Length 1.74 cm 4.228 in Volume 21.3 cm 3 1.3 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 32 M18432A H18432A S18432A - 26 59 M18459A H18459A S18459A - 35 8 - - S1848A - 5 112 - - - W184112A 6 135 M184135A H184135A S184135A W184135A 75 169 - - S184169A - 9 22 - - S18422A W18422A 125 281 M184281A H184281A S184281A - Single Layer 9 21.339 53.59 24.88 1 24.489 52.97 24.26 11 27.693 52.39 23.68 12 31.14 51.89 23.18 13 35.1429 51.43 22.72 14 39.29 51.6 22.35 15 44.2844 5.69 21.98 16 5.412 5.37 21.66 Single Layer 17 56.5777 5.8 21.37 18 63.8183 49.82 21.11 19 71.11649 49.59 2.88 2 8.16557 49.39 2.68 21 9.23493 49.2 2.49 22 11.33269 49.3 2.32 23 112.46498 48.89 2.18 24 126.65936 48.76 2.5 AL value vs. DC Bias A L (nh/n 2 ) 3 28 26 24 22 2 18 16 14 12 1 8 6 4 2 H184281A M184281A S184281A H184135A W184135A M184135A S184135A 15 3 45 6 75 9 15 12 135 15 165 NI(AT) 72 Dongbu Electronic Materials

1.84 1.13.6 (inch) 46.74 28.7 15.24 (mm) 1.84 1.13 M184178A.6 O.D.(max.) Core Dimensions (after Finish) 47.63mm 1.875 in I.D.(min.) 27.89 mm 1.98 in HT.(max.) 16.13 mm.635 in Physical Constant Window Area 6.11 cm 2 125824 c.mils Cross Section Area 1.34 cm 2.28 in 2 Path Length 11.63 cm 4.579 in Volume 15.58 cm 3.951 in 3 Core Information Part Number Single Layer Single Layer Perm. AL value (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 2 M1842A H1842A S1842A - 9 26.352 53.59 22.9 17 68.587 5.8 18.58 26 37 M18437A H18437A S18437A - 1 29.495 52.97 21.47 18 76.826 49.82 18.32 35 5 - - S1845A - 11 33.79 52.39 2.89 19 86.1186 49.59 18.9 5 7 - - - W1847A 12 37.12 51.89 2.39 2 96.16623 49.39 17.89 6 86 M18486A H18486A S18486A W18486A 13 42.1435 51.43 19.93 21 18.23587 49.2 17.7 75 17 - - S18417A - 14 47.226 51.6 19.56 22 121.33348 49.3 17.53 9 128 - - S184128A W184128A 15 54.292 5.69 19.19 23 135.46894 48.89 17.39 125 178 M184178A H184178A S184178A - 16 6.4118 5.37 18.87 24 152.66552 48.76 17.26 A L (nh/n 2 ) 19 18 17 16 15 14 13 12 11 1 9 8 7 6 5 4 3 2 1 H184178A M184178A S184178A AL value vs. DC Bias H18486A W18486A M18486A S18486A Standard MPC Toroidal Series 15 3 45 6 75 9 15 12 135 15 165 18 NI(AT) www.dongbuem.com 73

2. 1.25.53 (inch) 5.8 31.75 13.46 (mm) 2. 1.25 Core Dimensions (after Finish) O.D.(max.) 51.69 mm 2.35 in I.D.(min.) 3.94 mm 1.218 in HT.(max.) 14.35 mm.565 in.53 Physical Constant Window Area 7.5 cm 2 148144 c.mils M2152A Cross Section Area 1.251 cm 2.194 in 2 Path Length 12.73 cm 5.12 in Volume 15.93 cm 3.972 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 17 M217A H217A S217A - 26 32 M232A H232A S232A - 35 43 - - S243A - 5 6 - - - W26A 6 73 M273A H273A S273A W273A 75 91 - - S291A - 9 19 - - S219A W219A 125 152 M2152A H2152A S2152A - Single Layer 9 29.373 57.65 2.31 1 33.535 57.3 19.69 11 37.756 56.45 19.11 12 42.182 55.95 18.61 13 47.1527 55.49 18.15 14 53.2173 55.12 17.78 15 6.386 54.75 17.41 16 67.4373 54.43 17.9 Single Layer 17 76.6239 54.14 16.8 18 85.8785 53.88 16.54 19 95.1242 53.65 16.31 2 17.1762 53.45 16.11 21 12.24923 53.26 15.92 22 135.35381 53.9 15.75 23 15.49549 52.95 15.61 24 168.6995 52.82 15.48 AL value vs. DC Bias A L (nh/n 2 ) 16 15 14 13 12 11 1 9 8 7 6 5 4 3 2 1 H2152A M2152A S2152A H273A W273A M273A S273A 15 3 45 6 75 9 15 12 135 15 165 18 195 NI(AT) 74 Dongbu Electronic Materials

2.25 1.39.6 (inch) 57.15 26.39 15.24 (mm) 2.25 1.39 M225287A.6 O.D.(max.) Core Dimensions (after Finish) 58. mm 2.283 in I.D.(min.) 25.6 mm 1.8 in HT.(max.) 16.1 mm.634 in Physical Constant Window Area 5.14 cm 2 114392 c.mils Cross Section Area 2.29 cm 2.355 in 2 Path Length 12.5 cm 4.921 in Volume 28.6 cm 3 1.745 in 3 Core Information Part Number Single Layer Single Layer Perm. AL value (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 32 M22532A H22532A S22532A - 9 23.386 63.96 22.6 17 62.6649 6.45 18.55 26 6 M2256A H2256A S2256A - 1 26.551 63.34 21.44 18 7.9451 6.19 18.29 35 81 - - S22581A - 11 3.8 62.76 2.86 19 78.1332 59.96 18.6 5 115 - - - W225115A 12 34.1144 62.26 2.36 2 88.1893 59.76 17.86 6 138 M225138A H225138A S225138A W225138A 13 39.1655 61.8 19.9 21 99.26861 59.57 17.67 75 172 - - S22572A - 14 43.233 61.43 19.53 22 111.384 59.4 17.5 9 27 - - S22527A W22527A 15 49.3292 61.6 19.16 23 124.5359 59.26 17.36 125 287 M225287A H225287A S225287A - 16 55.469 6.74 18.84 24 138.7563 59.13 17.23 A L (nh/n 2 ) 3 28 26 24 22 2 18 16 14 12 1 8 6 4 2 H225287A M225287A S225287A AL value vs. DC Bias H225138A W225138A M225138A S225138A Standard MPC Toroidal Series 2 4 6 8 1 12 14 16 18 2 22 NI(AT) www.dongbuem.com 75

2.25 14..55 (inch) 57.15 35.56 13.97 (mm) 2.25 14. Core Dimensions (after Finish) O.D.(max.) 58. mm 2.283 in I.D.(min.) 34.7 mm 1.366 in HT.(max.) 14.86 mm.585 in.55 Physical Constant Window Area 9.48 cm 2 18792 c.mils M225156A Cross Section Area 1.444 cm 2.224 in 2 Path Length 14.3 cm 5.63 in Volume 2.65 cm 3 1.26 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 18 M22518A H22518A S22518A - 26 33 M22533A H22533A S22533A - 35 44 - - S22544A - 5 62 - - - W22562A 6 75 M22575A H22575A S22575A W22575A 75 94 - - S22594A - 9 112 - - S225112A W225112A 125 156 M225156A H225156A S225156A - Single Layer 8 29.317 64.68 21.54 9 33.455 63.96 2.82 1 37.643 63.34 2.2 11 42.92 62.76 19.62 12 48.1326 62.26 19.12 13 54.1881 61.8 18.66 14 6.2637 61.43 18.29 15 68.375 61.6 17.92 Single Layer 16 76.5319 6.74 17.6 17 85.7481 6.45 17.31 18 96.1638 6.19 17.5 19 18.15117 59.96 16.82 2 12.21187 59.76 16.62 21 135.362 59.57 16.43 22 152.42713 59.4 16.26 23 169.59855 59.26 16.12 AL value vs. DC Bias A L (nh/n 2 ) 17 16 15 14 13 12 11 1 9 8 7 6 5 4 3 2 1 H225156A M225156A S225156A H22575A W22575A M22575A S22575A 2 4 6 8 1 12 14 16 18 2 22 NI(AT) 76 Dongbu Electronic Materials

2.441 1.283.984 (inch) 62. 32.6 25. (mm) 2.441 1.283 Core Dimensions (after Finish) O.D.[max.] 63.1 mm 2.484 in I.D.[min.] 31.37 mm 1.235 in HT.[max] 26.27 mm 1.34 in.984 Physical Constant Window Area 7.73 cm 2 1525535 c.mils M24442A Cross Section Area 3.675 cm 2.57 in 2 Path Length 14.37 cm 5.657 in Volume 52.8 cm 3 3.222 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 45 - - - W24445A 26 84 M24484A H24484A S24484A W24484A 35 112 - - - - 5 161 - - - - 6 193 M244193A H244193A S244193A W244193A 75 241 M244241A H244241A S244241A W244241A 9 289 M244289A H244289A S244289A W244289A 125 42 M24442A H24442A S24442A - Single Layer 8 26.454 69.78 32.95 9 3.656 69.6 32.23 1 33.914 68.44 31.61 11 38.1326 67.86 31.3 12 43.1894 67.36 3.53 13 48.2659 66.9 3.7 14 54.3769 66.52 29.69 15 61.5373 66.16 29.33 Single Layer 16 68.7572 65.84 29.1 17 77.1771 65.54 28.71 18 87.15399 65.28 28.45 19 97.2163 65.6 28.23 2 18.335 64.86 28.3 21 123.35739 64.66 27.83 22 137.61477 64.5 27.67 - - - - - A L (nh/n 2 ) 45 4 35 3 25 2 H24442A M24442A S24442A AL value vs. DC Bias H244193A W244193A M244193A Standard MPC Toroidal Series 15 S244193A 1 5 2 4 6 8 1 12 16 18 2 22 NI(AT) www.dongbuem.com 77

3.63 1.938.5 (inch) 77.8 49.23 12.7 (mm) 3.63 1.938 M36142A.5 O.D.(max.) Core Dimensions (after Finish) 78.9 mm 3.16 in I.D.(min.) 48.2 mm 1.898 in HT.(max.) 13.84 mm.545 in Physical Constant Window Area 17.99 cm 2 355371 c.mils Cross Section Area 1.777 cm 2.275 in 2 Path Length 19.6 cm 7.717 in Volume 34.7 cm 3 2.118 in 3 Core Information Part Number Single Layer Single Layer Perm. AL value (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 16 M3616A H3616A S3616A - 8 41.493 19.55 24.46 16 16.8169 15.61 2.52 26 3 M363A H363A S363A - 9 47.713 18.83 23.74 17 119.11532 15.32 2.23 35 39 - - S3639A - 1 53.115 18.21 23.12 18 134.1635 15.6 19.97 5 56 - - - W3656A 11 6.1447 17.63 22.54 19 15.23118 14.83 19.74 6 68 M3668A H3668A S3668A W3668A 12 67.238 17.13 22.4 2 168.3266 14.63 19.54 75 84 - - S3684A - 13 76.2915 16.67 21.58 21 188.4697 14.44 19.35 9 12 - - S3612A W3612A 14 84.465 16.3 21.21 22 211.65286 14.27 19.18 125 142 M36142A H36142A S36142A - 15 95.5768 15.93 2.84 23 235.91645 14.13 19.4 AL value vs. DC Bias 15 14 13 12 11 A L (nh/n 2 ) 1 9 8 7 6 5 4 3 2 1 H36142A M36142A S36142A H3668A W3668A M3668A S3668A 3 6 9 12 15 18 21 24 27 3 NI(AT) 78 Dongbu Electronic Materials

3.63 1.938.625 (inch) 77.8 49.23 15.88 (mm) 3.63 1.938 Core Dimensions (after Finish) O.D.(max.) 78.9 mm 3.16 in I.D.(min.) 48.2 mm 1.898 in HT.(max.) 17.2 mm.67 in.625 Physical Constant Window Area 17.99 cm 2 355371 c.mils M36178A Cross Section Area 2.27 cm 2.352 in 2 Path Length 19.6 cm 7.717 in Volume 45.3 cm 3 2.764 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 2 M362A H362A S362A - 26 37 M3637A H3637A S3637A - 35 5 - - S365A - 5 71 - - - W3671A 6 85 M3685A H3685A S3685A W3685A 75 17 - - S3617A - 9 128 - - S36128A W36128A 125 178 M36178A H36178A S36178A - Single Layer 8 41.547 85.58 23.7 9 47.791 84.86 22.98 1 53.1125 84.24 22.36 11 6.164 83.66 21.78 12 67.226 83.16 21.28 13 76.3233 82.7 2.82 14 84.458 82.33 2.45 15 95.6396 81.96 2.8 Single Layer 16 16.958 81.64 19.76 17 119.12789 81.35 19.47 18 134.18131 81.9 19.21 19 15.25637 8.86 18.98 2 168.36218 8.66 18.78 21 188.51119 8.47 18.59 22 211.72399 8.3 18.42 23 235 1.1629 8.16 18.28 A L (nh/n 2 ) 19 18 17 16 15 14 13 12 11 1 9 8 7 6 5 4 3 2 1 H36178A M36178A S36178A AL value vs. DC Bias H3685A W3685A M3685A S3685A Standard MPC Toroidal Series 3 6 9 12 15 18 21 24 27 3 NI(AT) www.dongbuem.com 79

4. 2.25.535 (inch) 11.6 57.15 13.59 (mm) 4. 2.25 M492A.535 O.D.(max.) Core Dimensions (after Finish) 12.87 mm 4.5 in I.D.(min.) 55.75 mm 2.195 in HT.(max.) 14.86 mm.585 in Physical Constant Window Area 24.41 cm 2 4817375 c.mils Cross Section Area 2.97 cm 2.46 in 2 Path Length 24.27 cm 9.555 in Volume 72.12 cm 3 4.41 in 3 Core Information Part Number Single Layer Single Layer Perm. AL value (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 21 M421A H421A S421A - 8 47.744 19.55 21.54 16 132.13389 15.61 17.6 26 4 M44A H44A S44A - 9 54.179 18.83 2.82 17 147.1875 15.32 17.31 35 54 - - S454A - 1 63.1588 18.21 2.2 18 167.26819 15.6 17.5 5 77 - - - W477A 11 72.2285 17.63 19.62 19 187.37934 14.83 16.82 6 92 M492A H492A S492A W492A 12 81.3243 17.13 19.12 2 21.53734 14.63 16.62 75 - - - - - 13 91.4594 16.67 18.66 21 239.77132 14.44 16.43 9 - - - - - 14 13.6561 16.3 18.29 22 268 1.9144 14.27 16.26 125 - - - - - 15 117.935 15.93 17.92 - - - - - 12 11 1 9 8 AL value vs. DC Bias A L (nh/n 2 ) 7 6 5 4 3 2 1 H492A W492A M492A S492A 3 6 9 12 15 18 21 24 27 3 NI(AT) 8 Dongbu Electronic Materials

4. 2.25.65 (inch) 11.6 57.15 16.51 (mm) 4. 2.25 M4112A.65 O.D.(max.) Core Dimensions (after Finish) 12.87 mm 4.5 in I.D.(min.) 55.75 mm 2.195 in HT.(max.) 19.4 mm.75 in Physical Constant Window Area 24.41 cm 2 4817375 c.mils Cross Section Area 3.52 cm 2.546in 2 Path Length 24.27 cm 9.555 in Volume 85.5 cm 3 5.218 in 3 Core Information Perm. AL value Part Number (μ) (nh/n2) MPP High Flux Sendust Power Flux 14 25 M425A H425A S425A - 26 47 M447A H447A S447A - 35 63 - - S463A - 5 9 - - - W49A 6 112 M4112A H4112A S4112A W4112A 75 - - - - - 9 - - - - - 125 - - - - - Single Layer 8 47.81 19.55 24.46 9 54.1161 18.83 23.74 1 63.178 18.21 23.12 11 72.2459 17.63 22.54 12 81.3489 17.13 22.4 13 91.4943 16.67 21.58 14 13.76 16.3 21.21 15 117.161 15.93 2.84 Single Layer 16 132.1446 15.61 2.52 17 147.2176 15.32 2.23 18 167.28858 15.6 19.97 19 187.4817 14.83 19.74 2 21.57818 14.63 19.54 21 239.82994 14.44 19.35 22 268 1.17439 14.27 19.1 - - - - - A L (nh/n 2 ) 12 11 1 9 8 7 6 5 4 3 AL value vs. DC Bias H4112A W4112A M4112A S4112A Standard MPC Toroidal Series 2 1 3 6 9 12 15 18 21 24 27 3 NI(AT) www.dongbuem.com 81

Special Core Data Special Height Up/Down Core Series Introduction (3.56mm x 1.78mm x 1.52mm).14.7 Increase H.T.(mm).6 Decrease H.T.(mm) We, Dongbu have made special height up / down core series since 2. Actually so many customers would like to get some increasing height cores or decreasing height cores in order to design their drawing. So we have supplied various special height core series. That is say, we can make various core height depending on customer request. Also in addition to cores listed below(see [Table 1]), customer specifications are available. It is very useful in the case of replacing two pieces core by one cores which is the increasing height core. As increasing height, customer can get cores low prices and also we can get much profits than common cores. Available Item As we refered to Introduction, we have various special height core series. If you would like to know further listed, please see next page. For convenience, We listed goods now we can supply at once the [Table 1]. So if you would like to get any samples or inquiries for other item that don t list by [Table 1] We are willing to assist you. If you need to get other information about it, Please contact to us. 82 Dongbu Electronic Materials

[ Table 1 ] Part Number Permeability AL-Value Magnetic Path length Cross Section Area Core Dimension OD(max.) ID(min.) HT(max.) (μ) (nh/n 2 ) (cm) (cm 2 ) (mm) (mm) (mm) H655A 125 5 4.94.132 17.4 9.53 5. M6867A 6 67 4.123.362 18.3 9.2 1.75 S1688A 6 88 6.33.75 27.7 14.1 14. H1695A 6 95 6.33.81 27.7 14.1 15. S1695A 6 95 6.33.81 27.7 14.1 15. S16146A 9 146 6.33.819 27.7 14.1 15. S1621A 125 21 6.33.854 27.7 14.1 15.8 H16191A 125 191 6.33.924 27.7 14.1 17.2 H16115A 6 115 6.33.981 27.7 14.1 18. S16115A 6 115 6.33.981 27.2 14.1 18. S16251A 125 251 6.33 1.21 27.7 14.1 19.5 H131A 6 1 8.13 1.85 33.83 19.3 18.3 S131A 6 1 8.13 1.85 33.83 19.3 18.3 H141149A 125 149 8.983.843 36.63 21.54 14.12 M141168A 125 168 8.938.95 36.63 21.54 15.6 H1574A 6 4 9.811.531 4.7 23.3 8. H15784A 125 84 9.811.531 4.7 23.3 8. Above mentioned dimensions are for nominal epoxy coating Finish coating material : Epoxy (UL94V - ) Inductance tolerance are + - 8% from nominal inductance In addition to cores listed above, customer specifications are also available www.dongbuem.com 83

Special Sendust 9μ Core Series OD ID Features 1. Low Core Losses HT 2. Excellent DC - Bias Characteristics 3. Excellent Frequency Characteristics 4. Low Price Part Number Permeability AL-Value Magnetic Path length Cross Section Area Core Dimension OD(max.) ID(min.) HT(max.) (μ) (nh/n 2 ) (cm) (cm 2 ) (mm) (mm) (mm) S4155A 9 55 2.285.12 1.15 5. 4.2 S546A 9 6 3.2.171 13.72 7.32 5.4 S77A 9 7 4.25.281 17.9 9.7 7.1 S827A 9 7 5.95.278 2.75 12.4 6.9 S8212A 9 12 5.95.484 2.75 12.4 12.3 S847A 9 7 5.671.358 21.4 11.7 7.6 S199A 9 9 6.37.59 27.7 14. 7.6 S1915A 9 15 6.37.85 27.7 14. 12.7 S136146A 9 146 8.15 1.55 34.59 18.64 13.5 S136183A 9 183 8.15 1.328 34.59 18.64 17. Above mentioned core dimensions are for nominal bare core before coating Cores are supplied with.4mm~.6mm nominal epoxy coating. Finish coating material : Epoxy(UL94V-), All core colors are black Inductance tolerance are + - 8% from nominal inductance In addition to cores listed above, customer specifications are also available 84 Dongbu Electronic Materials

Dongbu Special Shape Core Data High Flux Sendust Special Shape Core Series Power Flux Features 1. Large energy storage capacity 2. Low core losses at elevated frequency 3. Exellent DC-Bias inductance features 4. Good temperature stability Applications 1. Choke coils for large current 2. Flyback transformers 3. PFC reactors 4. High inductance choke coils Special Core Data www.dongbuem.com 85

E-Core series Identification of Dongbu Sendust E-Core Series S 43 17 234 EE Core shape Inductance Size Size Material : EE means EE type cores : apparent inductance [mh] factor for 1turns : horizontal axis of cores [mm] : vertical axis of cores [mm] : material code Where, S : Sendust Material [Fe / Al / Si] 43 : 43 mm 17 : 17mm 234 : 234mH at 1turns EE : 'EE' shape cores. In the case of 'ER'. It means 'ER' shaped cores Dimension specification of Dongbu Sendust E-Core series [Fig. 1] mechanical out lines [unit : mm] about sendust E-core series B C L A F M E D [Table 2] shows our dimension specification of sendust E-core series P/N *198***EE *251***EE *3514***EE *4117***EE *4321***EE *5528***EE *6533***EE *7228***EE *838***EE A 19.3 8.1 4.8 ±.3 ±.18 ±.15 25.1 9.6 6.5 ±.38 ±.18 ±.1 34.5 14.1 9.3 ±.5 ±.23 ±.18 4.9 16.5 12.5 ±.69 ±.279 ±.18 42.8 21.1 1.8 ±.64 ±.33 ±.25 54.9 27.6 2.6 ±.812 ±.46 ±.38 65.1 32.5 27. ±1.27 ±.38 ±.41 72.4 27.9 19. ±1.9 ±.51 ±.38 8. 38.1 19.8 ±1.19 ±.64 ±.38 Dimensions [mm] B C D E F L M 5.5 13.9 6.2 18.8 9.6 25.3 1.4 28.3 15. 3.4 18.5 37.5 22.2 44.2 17.8 52.6 28.1 59.3 4.8 ±.13 6.1 ±.13 9.3 ±.2 12.5 ±.25 1.9 ±.25 16.8 ±.38 19.7 ±.3 19.1 ±.38 19.8 ±.38 Path Length (cm) Cross section Area (cm 2 ) AL value(nh/n 2 )±12% 26μ 4μ 6μ 9μ 2.3 4.7 4.1.23 26 35 48 69 3. 6.3 4.85.39 39 52 7 1 4.4 7.9 6.94.84 56 75 12 146 6. 7.9 7.75 1.52 88 119 163 234 5.95 9.27 9.84 1.28 56 76 15 151 8.4 1.3 12.3 3.5 116 157 219 NA 1. 12.1 14.7 5.4 162 23 3 NA 9.5 16.9 13.7 3.68 13 173 236 NA 9.9 19.8 18.5 3.89 13 145 19 NA 86 Dongbu Electronic Materials

Block-Core series Identification of Dongbu Block-Core Series W 6315 E Permeability Size Material : E(9μ), C(6μ), J(4μ) : Length Width Height [mm] : material code Where, W : Power Flux Material [Fe / Si] 6315 : 6mm(L) 3mm(W) 15mm(H) E : 9μ Dimension specification of Dongbu Block-Core series [Fig. 1] mechanical out lines [unit : mm] about Block-core series C A B [Table 2] shows our dimension specification of Block-core series P/N Assembled (4pcs) Assembled Dimensions (mm) L W H AL Value(nH/N 2 ) 4μ 6μ Path Length (cm) Crosssection Area (cm 2 ) *5315* 5. 3. 8. 12 18 18.71 4.5 *532* 5. 3. 9. 165 247 18.28 6. *6315* 6. 3. 9. 1 149 22.71 4.5 H *632* 6. 3. 1. 135 23 22.28 6. *7315* 7. 3. 1. 85 126 26.71 4.5 *732* 7. 3. 11. 115 172 26.28 6. *8315* 8. 3. 11. 74 11 3.71 4.5 *832* 8. 3. 12. 1 149 3.28 6. L W www.dongbuem.com 87

U-Core series Identification of Dongbu Sendust U-Core Series S 55 29 234 UU Core shape Inductance Size Size Material : UU means UU type cores : apparent inductance [mh] factor for 1turns : horizontal axis of cores [mm] : vertical axis of cores [mm] : material code Where, S : Sendust Material [Fe / Al / Si] 55 : 55 mm 29 : 29mm 234 : 234mH at 1turns UU : 'UU' shape cores. In the case of 'UU'. It means 'UU' shaped cores Dimension specification of Dongbu Sendust U-Core series [Fig. 1] mechanical out lines [unit : mm] about sendust U-core series B C L A E D [Table 2] shows our dimension specification of sendust U-core series P/N *3111***UU *4111***UU *5528***UU *6533***UU *6533***UU *7236***UU *838***UU A B 31.2 11.2 12.1 ±.51 ±.25 ±.38 4.6 11.2 12.1 ±.51 ±.51 ±.38 54.9 27.6 23.2 ±.51 ±.51 ±.38 65.1 32.5 27. ±1.35 ±.31 ±.41 65.1 32.5 2. ±1.35 ±.31 ±.41 72.4 35.6 2.9 ±.89 ±.64 ±.38 8. 38.1 23. ±89 ±.64 ±.38 Dimensions [mm] C D (min.) E (min.) L (nom.) Path Length (cm) Cross section Area (cm 2 ) AL value(nh/n 2 )±12% 26μ 4μ 6μ 9μ 2.54 14.2 8.26 6.56 1.1-92 111 179 2.54 23.6 8.38 8.52 1.1-72 95 138 16.5 33.2 1.5 16.8 2.44 64 - - - 22.1 44.22 1. 21.9 2.7 54 - - - 19.6 38.24 12.5 19.9 2.5 55 - - - 21.3 43.68 13.9 21.9 2.9 58 - - - 22.4 49.27 15.4 23.7 3.54 66 - - - 88 Dongbu Electronic Materials