Tel : 881745 Fax : 881749 LR Series Metal Alloy LowResistance Resistor This specification is applicable to lead free, halogen free of RoHS directive for metal alloy lowresistance resistor. The product is for general purpose. The available AECQ00 report also can provide by customer request. Miniature size suitable for compact Print Circuit Boards of highprecision electronic products. Applications include : Power Supply, Battery Pack, Measurable Instrument, LED Driver and Others. GENERAL SPECIFICATIONS Max. Rating Power at 70 Max. Rating Current Max. Overload Current TCR [PPM/ ] Resistance Range[mΩ] ± % (D) W 1W 40.8A 57.74A 81.64A 115.47A 0.mΩ: ± 450 ~0.9mΩ: ± 175 1.0~15.0mΩ: ± 75 15.1~50.0mΩ: ± 50 7~50 7~50 1.5W 70.71A 141.4A 0.mΩ: ± 450 ~0.9mΩ: ± 175 1mΩ: ± 75 ± 1.0% (F) ±.0% (G) ± 5.0% (J) 0.~50 0.~1 Operating Temp. Range LR010 1W 44.7A 89.44A 7~49 ~100 1.5W 54.77A 109.54A ~0.9 mω: ± 100 1.0~1.9mΩ: ± 75.0~6.9mΩ: ± 50 7~40 ~40 7.0~100mΩ: ± 5 W 6.5A 16.49A 7~1 ~1 LR51 1W 57.74A 19.1A 1.5W 70.71A 158.11A W 81.65A 18.57A W 100A.61A 0.mΩ: ± 150 ~1.0mΩ: ± 75 1.1~.0mΩ: ± 50.1~100mΩ: ± 5 0.mΩ: ± 150 ~1.0mΩ: ± 75 1.1~.0mΩ: ± 50.1~75mΩ: ± 5 0.mΩ: ± 150 ~1.0mΩ: ± 75 1.1~.5mΩ: ± 50.6~10.0mΩ: ± 5 0.~100 7~50 0.~75 7~10 0.~10 55~170 C LR51H W 5.1A 11.47A 76~00mΩ: ± 50 76~00 W 17.A 8.54A 10.1~80mΩ: ± 50 10.1~50 10.1~80 LR75 4W 16.49A 5.95A 5W 158.11A 7.86A 0.0mΩ: ± 100 ~.0mΩ: ± 50 0.0mΩ: ± 100 ~mω: ± 50 0.~ 0.0~ W 7.9A 47.4A LR78.5W 9.58A 51.A 4.0~100mΩ: ± 5 4~19 4~100 4W 1.6A 6.5A 4.0~50.0mΩ: ± 5 0 LR457S (without Heat sink) W 6.5A 109.54A W 77.5A 14A 5W 100A 17A LR457 5W 100A 17A ~1mΩ ±75 1.1~100mΩ ±50 ~1mΩ ±75 1.1~7mΩ ±50 ~1mΩ ±75 1.1~7.5mΩ ±50 ~1mΩ ±75 1.1~00mΩ ±50 7~100 ~100 7~7 ~7 7~7.5 ~7.5 7~10 ~00 Website: http://www.raraohm.com Email: sg@raraohm.com JANUARY 0 th, 018
Tel : 881745 Fax : 881749 CHARACTERISTICS Temperature Coefficient of Resistance Short Time Overload Refer to Paragraph general specifications LR457(S) : ( R/R1) ±.0% Others : ( R/R1) ± % JIS C 501 4.8 Method; TCR(ppm/ ) = {(RR1)/R1(TT1)}ⅹ10 6 R1 : Resistance of room temp.(t1), R : Resistance of 150 (T) LR75(5W)/LR78/LR457(S) : times rated power, 5seconds LR51(H) : 5times rated power, 5 seconds Insulation Resistance 10 9 Ω JIS C 501 4.6 Method; DC100V DC for 1minute Dielectric Withstanding Voltage Without break down JIS C 501 4.7 Method; Applied AC500V AC for 1minute, Limit surge current maximum 50mA Resistance to Solder Heat ( R/R1) ± % JIS C 501 4.18 Method; Solder temperature/immersion time : 60± 5, 10± 1seconds Solderability test 95% coverage JIS C 501 4.17 Method; 45± 5, ± seconds Resistance to solvent ( R/R1) ± % JIS C 501 4.9, 4.0 Method : Immersion time : 60 seconds, @0 ~5 Low Temperature Exposure(Storage) ( R/R1) ± % JIS C 501 4..4 Method : 1,000hours, @55 High Temperature Exposure(Storage) ( R/R1) ± 1.0% JIS C 501 4.. Method : 1,000hours, +170 Temperature Cycling (Rapid Temp. Change) ( R/R1) ± % JIS C 501 4.19 Method : Air to air, 55 to +150, 1,000cycles, 15minutes at each extreme, transition time to minutes Moisture Resistance (Climatic Sequence) ( R/R1) ± % MilSTD0, Method 106 Bias Humidity ( R/R1) : ± % JIS C 501 4.4 Method : +85,85% RH, 10% Bias, 1.5 hours On, hours Off. Extended Life Test : 1,000 hours. Load Life LR457 : ( R/R1) ±.0% Others : ( R/R1) ± 1.0% JIS C 501 4.5.1 Method : Test temperature 70 Rated working voltage 1.5hours On, hours Off. Extended Life Test : 1,000 hours * Remark: R = (resistance after stress resistance before stress); R1 means resistance before stress DERATING CURVE Website: http://www.raraohm.com Email: sg@raraohm.com JANUARY 0 th, 018
Tel : 881745 Fax : 881749 DIMENSIONS [mm] LR series LR51H series LR457S (W&5W) Max. Power Rating[W] Resistance Range[mΩ] DIMENSIONS in inches (millimetres) L W H T1 T 0. ~0.6 0.09± 0.010 (1.000± 4) 0.0± 0.010 (50± 4) 0.09± 0.010 (0.75± 4) & 1 1 ~4 0.05± 0.010 (0.645± 4) 0.00± 0.010 (08± 4) 1.5 5 6~50 0. ~0.6 0.16± 0.010 (.00± 4) 0.06± 0.010 (1.600± 4) 0.0± 0.010 (45± 4) 0.09± 0.010 (1.000± 4) 0.04± 0.010 (0.600± 4) 0.00± 0.010 (08± 4) 0.0± 0.010 (50± 4) 0.09± 0.010 (0.75± 4) 1 0.05± 0.010 (0.645± 4) 0.00± 0.010 (08± 4) LR010 1 & 1.5 & ~0.9 1~ 0.00± 0.010 (5.080± 4) 0.100± 0.010 (.540± 4) 0.01± 0.010 (0.787± 4) 0.057± 0.010 (1.440± 4) 0.051± 0.010 (1.95± 4) 1 & 1.5.1~4 0.05± 0.010 4.1~100 (0.645± 4) 0. 0.040± 0.010 (1.000± 4) ~ 0.01± 0.010.1~4 (0.787± 4) 4.1~75 75.1~100 0.05± 0.010 (0.645± 4) 0.01± 0.010 (0.787± 4) 0.079± 0.010 (.0± 4) 0.074± 0.010 (1.880± 4) (1.118± 4) 0.04± 0.010 (0.868± 4) 0. 0.040± 0.010 (1.000± 4) 0.079± 0.010 (.0± 4) LR51 ~ 0.01± 0.010.1~4 (0.787± 4) 4.1~75 0.46± 0.010 (6.48± 4) 0.16± 0.010 (.0± 4) 0.054± 0.010 (0.645± 4) 0.074± 0.010 (1.880± 4) (1.118± 4) 0. 0.040± 0.010 (1.000± 4) 0.079± 0.010 (.0± 4) 0.074± 0.010 (1.880± 4) 0.6~.9 0.01± 0.010 (0.787± 4) (1.118± 4) ~4 0.066± 0.010 (1.676± 4) 4.1~10 0.05± 0.010 (0.645± 4) (1.118± 4) Website: http://www.raraohm.com Email: sg@raraohm.com JANUARY 0 th, 018
Tel : 881745 Fax : 881749 LR51H Max. Power Rating[W] LR75 4 & 5 Resistance Range[mΩ] 76~00 10.1~75 75.1~80 0.~ 0.6 1 1.5.5~.5 LR78 &.5 & 4 4~100 LR457S (without heat sink) LR457 5 5 0.6~ 5.1~100 0.6~ 5.1~7 0.6~ 5.1~7.5 0.6~ 5.1~00 DIMENSIONS in inches (millimetres) L W H T1 T 0.46± 0.010 (6.48± 4) 0.68± 0.010 (6.807± 4) 0.64± 0.010 (6.706± 4) 0.450± 0.010 (11.40± 4) 0.16± 0.010 (.0± 4) 4± 0.010 (6.45± 4) 0.8± 0.010 (7.188± 4) 0.70± 0.010 (6.850± 4) 0.09± 0.010 (1.00± 4) 0.09± 0.010 (0.991± 4) 0.04± 0.010 (0.868± 4) (1.118± 4) 0.04± 0.010 (0.868± 4) 0.085± 0.010 (.159± 4) (1.80± 4) 0.04± 0.010 (1.09± 4) 0.085± 0.010 0.09± 0.010 (.159± 4) (0.991± 4) 0.05± 0.010 (0.889± 4) 0.09± 0.010 (0.991± 4) 0.055± 0.010 (1.400± 4) 0.059± 0.010 (1.500± 4) (1.80± 4) 0.065± 0.010 (1.651± 4) 0.051± 0.010 (1.95± 4) 0.045± 0.010 (1.14± 4) 0.17± 0.010 (.15± 4) (1.815± 4) 0.009~0.094 (0.1~1) 0.17± 0.010 (.15± 4) 0.08± 0.010 (0.965± 4) (1.815± 4) 0.17± 0.010 (.15± 4) (1.815± 4) 0.17± 0.010 (.15± 4) 0.08± 0.010 (0.965± 4) (1.815± 4) SOLDER PAD DIMENSIONS Type Max. Power Rating [W] & 1 & 1.5 LR010 1 & 1.5 & LR51 LR51H 1 & 1.5 16~00 Resistance SOLDER PAD Dimension in millimetres Range [mω] a b i 0.~0.6 1.65 0.90.18 1~50 1.6 1.00 10.1~80 ~.89 1..9.1~100.9.41 0.~4.05 1.7 4.1~100.11.18 0.~4.05 1.7 4.1~75.11.68.18 0.~.05 1.7 0.6~.9 & 4.1~10.19.00 ~4.79 1.80.19.68.00 LR75 4 & 5 0.~.18 6.86 1. LR78 &.5 & 4 4~100.75 7.8.51 LR457S 5 LR457 5 ~5 4.8 5.51 5.1~100.4 8.1 ~5 4.8 5.51 8.74 5.1~7.4 8.1 ~5 4.8 5.51 5.1~7.5.4 8.1 ~5 4.8 5.51 8.74 5.1~00.4 8.1 Website: http://www.raraohm.com Email: sg@raraohm.com JANUARY 0 th, 018
Tel : 881745 Fax : 881749 PACKAGING Tape Dimensions : LR series (0.0.6mΩ) ( 1.0mΩ) Dimensions [mm] A B W E F T1 T P P0 P1.50± 0.10 1.90± 0.10 8.0± 0.15 1.75± 0.10.5± 0.10 1.7± 0.10 0.± 0.10 4.0± 0.10 4.0± 0.10.0± 0.10.48± 0.10 1.8± 0.10 8.0± 0.15 1.75± 0.10.5± 0.10 1.10± 0.10 0.0± 0.10 4.0± 0.10 4.0± 0.10.0± 0.10 LR010 5.45± 0.10.90± 0.10 1.0± 0.15 1.75± 0.10 5.5± 0.10 1.± 0.10 0.± 0.05 4.0± 0.10 4.0± 0.10.0± 0.10 Packaging LR51 (0.mΩ) 6.74± 0.10.50± 0.10 1.0± 0.15 1.75± 0.10 5.5± 0.10 1.60± 0.10 0.4± 0.05 8.0± 0.10 4.0± 0.10.0± 0.10 LR51 6.75± 0.10.50± 0.10 1.0± 0.15 1.75± 0.10 5.5± 0.10 1.0± 0.10 0.0± 0.05 4.0± 0.10 4.0± 0.10.0± 0.10 LR51H 6.75± 0.10.55± 0.10 1.0± 0.0 1.75± 0.10 5.5± 0.10 1.60± 0.10 0.0± 0.10 4.0± 0.10 4.0± 0.10.0± 0.10 LR75 7.15± 0.10 6.75± 0.10 1.0± 0.15 1.75± 0.10 5.5± 0.10 1.95± 0.10 ± 0.05 8.0± 0.10 4.0± 0.10.0± 0.10 LR78 7.15± 0.10 7.70± 0.10 1.0± 0.15 1.75± 0.10 5.5± 0.10 1.45± 0.10 ± 0.05 1.0± 0.10 4.0± 0.10.0± 0.10 LR457 11.8± 0.10 7.0± 0.10 4.0± 0.15 1.75± 0.10 11.5± 0.10.00± 0.10 0.0± 0.10 1.0± 0.10 4.0± 0.10.0± 0.10 LR457S 11.8± 0.10 7.0± 0.10 4.0± 0.15 1.75± 0.10 11.5± 0.10.00± 0.10 0.0± 0.10 1.0± 0.10 4.0± 0.10.0± 0.10 Reel Dimensions : Reel Type / Tape W M A B C D (0.0.6mΩ) 8mm tape 9.0± 178±.0.0± 1.5± 1.0± 60.0± 1.0 ( 1.0mΩ) 8mm tape 9.0± 178±.0.0± 1.5± 1.0± 60.0± 1.0 LR010 1mm tape 1.8± 178±.0.0± 1.5± 1.0± 80.0± 1.0 Reel Dimensions LR51 (0.mΩ) 1mm tape 1.8± 178±.0.0± 1.5± 1.0± 80.0± 1.0 LR51(H) 1mm tape 1.8± 178±.0.0± 1.5± 1.0± 80.0± 1.0 LR75 1mm tape 1.8± 178±.0.0± 1.5± 1.0± 80.0± 1.0 LR78 4mm tape 5.0± 1.0 178±.0.0± 1.± 17.7± 60.0± 1.0 LR457(S) 4mm tape 5.0± 1.0 178±.0.0± 1.± 17.7± 60.0± 1.0 Website: http://www.raraohm.com Email: sg@raraohm.com JANUARY 0 th, 018
Tel : 881745 Fax : 881749 *Packaging Quantity Type (0.~0.6mΩ) ( 1.0mΩ) Tape width 8mm Max. Packaging Quantity (pcs/reel) 4mm pitch 8mm pitch 1mm pitch,000 pcs 4,000 pcs LR010,000 pcs / 4,000 pcs LR51 (0.mΩ) 1,000 pcs LR51 4,000 pcs 1mm LR51H,000 pcs LR75 1,000 pcs LR78 1,000 pcs LR457(S) 4mm 500 pcs MARKING FORMAT All the products marking are 4 digits (LR51 0.mΩ~4mΩ are not included) a. R designated the decimal location in ohms. Ex) For 1mΩ the product marking is R001; For 5mΩ the product marking is R05; For 100mΩ the product marking is R100. b. m designated the decimal location in milliohms. Ex) For mω the product marking is 0m5; For mω the product marking is 0m50; For 5.5mΩ the product marking is 5m50; For 5.5mΩ the product marking is 5m5. c. Marking image (Please refer to right) LR51 0.mΩ~4mΩ marking format ( digits) a. Under 1mΩ (1mΩ is not included) m is the first digit and means the decimal point position of mω. Ex) For 0.mΩ the product marking is m0; For 90mΩ the product marking is m90. b. Under 4mΩ (4mΩ is included) The first digit is the unit digit. m means the decimal point position of mω. Ex) For 1mΩ the product marking is 1m0; For 4mΩ the product marking is 4m0. ODERING PROCEDURE EXAMPLE Website: http://www.raraohm.com Email: sg@raraohm.com JANUARY 0 th, 018