Features. RoHS compliant 2. Body size Ф5mm~ Ф 30mm 3. Radial lead resin coated 4. High power rating 5. Wide resistance range 6. Cost effective 7. Operating temperature range: Φ5mm:-40~+50 Φ8~Φmm:-40~+70 Φ3mm~Φ30mm:-40~+200 8. Agency Recognition: UL /cul/tuv /CSA/CQC Recommended Applications. Switch mode power supply 2. Electric motor 3. Transformer 4. Adapter 5. Projector 6. Halogen lamp Part No. Code Ф 5mm~ Ф 5mm 2 3 4 5 6 7 8 9 2 3 4 5 6 Product Code Thinking SCK NTC Thermistor SCK Type Body Size 05 Ф 5mm 08 Ф 8mm Ф mm 3 Ф 3mm 5 Ф 5mm Zero Power Resistance at 25 (R 25 ) 0R5 0.5Ω 2R5 2.5Ω 08 8Ω 20 20Ω 20 20Ω Max Steady State Current at 25 X3 0.3A 2X 2.5A 8 8A A Tolerance of R 25 L ±5% M ±20% N ±25% Appearance S Straight Lead I Inner Kink Lead F Y Kink Lead Internal Control Code Y ROHS Control Ф 20mm~ Ф 30mm 2 3 4 5 6 7 8 9 2 3 4 5 Product Code Thinking SCK NTC Thermistor SCK Type Body Size 20 Ф 20mm 25 Ф 25mm 30 Ф 30mm Zero Power Resistance at 25 (R 25 ) R 25 <Ω 0R7:0.7Ω 2R5:2.5Ω R 25 Ω :Ω 470:47Ω 47:470Ω Tolerance of R 25 L ±5% M ±20% N ±25% Appearance S Straight Lead I Inner Kink Lead F Y Kink Lead Packaging B Bulk Internal Control Code Y ROHS Control
Dimensions S type (straight lead) (Unit:mm) Disc size Dmax. Pnor. dnor. Amax. Lmin. Tmax. ψ05 6.5 4±0.6 0.8±0.02 6.5 3 5 ψ08 9.5 5±0.8 0.8±0.02 9.5 3 5 ψ.5 5±0.8 0.8±0.02.5 3 5 ψ3 4.5 7.5± 0.8±0.02 4.5 30 6 ψ5 6.5 7.5± ±0.02 6.5 29 6 ψ20 2.5 7.5± ±0.02 2.5 26 6 ψ25 29 7.5± ±0.02 29 25 7 ψ30 36 7.5± ±0.02 36 23 8 F type (Y kink lead) (Unit:mm) Disc size Dmax. Pnor. dnor. Amax. Lmin. Tmax. ψ08 9.5 5±0.8 0.8±0.02 3 29 5 ψ.5 5±0.8 0.8±0.02 5 29 5 ψ3 4.5 7.5± 0.8±0.02 7.5 27 6 ψ5 6.5 7.5± ±0.02 20 26 6 ψ20 2.5 7.5± ±0.02 28 25 6 ψ25 29 7.5± ±0.02 35 22 7 ψ30 36 7.5± ±0.02 42 22 8 I type (inner kink lead) Figure A Figure B (Unit:mm) Disc size Dmax. Pnor. dnor. Amax. Lmin. Tmax. Figure ψ05 6.5 5±0.8 0.8±0.02 29 5 B ψ08 9.5 5±0.8 0.8±0.02 6 25 5 A ψ.5 5±0.8 0.8±0.02 7 25 5 A ψ3 4.5 7.5± 0.8±0.02 20 25 6 A ψ5 6.5 7.5± ±0.02 23 25 6 A ψ20 2.5 7.5± ±0.02 28 24 6 A ψ25 29 7.5± ±0.02 35 22 7 A ψ30 36 7.5± ±0.02 42 22 8 A
Characteristics Part no. Zero power resistance Max. steady state current Residual resistance at 25 Imax Max. power rating Thermal dissipation constant Thermal time constant Operating temperature range R25(Ω) Imax(A) R Imax (Ω) Pmax(W) δ(mw/ C) τ(sec.) T L ~T U ( C) Safety Approvals UL cul CSA TUV CQC SCK05052 5 2 0.429 SCK0508 8.089 SCK05.26.8 5 7-40 ~ +50 SCK052 2.84 SCK0520X3 20 0.3 5.560 SCK08042 4 2 0.44 SCK084R72 4.7 2 0.445 SCK08053 5 3 0.26 SCK08063 6 3 0.283 SCK08073 7 3 0.287 2.3 6 38-40 ~ +70 SCK08082 8 2 0.520 SCK082 2 0.542 SCK0852 5 2 0.548 SCK0820 20.544 SCK0830X 30 0.5 4.094 SCK5 5 0.09 SCKR35.3 5 0.095 SCKR55.5 5 0. SCK2R55A 2.5 5 0.20 SCK35 3 5 0.27 SCK44 4 4 0.6 SCK54 5 4 0.80 SCK6R83 6.8 3 0.270 SCK83 8 3 0.278 SCK3 3 0.297 SCK23 2 3 0.30 SCK33 3 3 0.356 2.4 7 43-40 ~ +70 SCK52X 5 2.5 0.442 SCK62X 6 2.5 0.47 SCK202 20 2 0.646 SCK222 22 2 0.659 SCK252 25 2 0.674 SCK302 30 2 0.700 SCK472 47 2 0.720 SCK502 50 2 0.83 SCK80 80 2.236 SCK 2.38 SCK20 20 2.406 SCK303 3 0.74 SCK3R37.3 7 0.070 SCK32R56 2.5 6 0.094 SCK3045 4 5 0.32 SCK34R74 4.7 4 0.68 SCK3055 5 5 0.66 SCK3074 7 4 0.84 3. 8 66-40 ~ +200 SCK3084 8 4 0.206 SCK34 4 0.27 SCK324 2 4 0.230 SCK353 5 3 0.343 SCK363 6 3 0.348 SCK383 8 3 0.365 SCK3203 20 3 0.4
Part no. Zero power resistance Max. steady state current Residual resistance at 25 Imax Max. power rating Thermal dissipation constant Thermal time constant Operating temperature range R25(Ω) Imax(A) R Imax (Ω) Pmax(W) δ(mw/ C) τ(sec.) T L ~T U ( C) Safety Approvals UL cul CSA TUV CQC SCK50R78A 0.7 8 0.05 SCK508 8 0.054 SCK5R38.3 8 0.064 SCK5R58.5 8 0.068 SCK5028 2 8 0.078 SCK52R58 2.5 8 0.086 SCK5037 3 7 0.09 SCK5046 4 6 0.7 SCK5056 5 6 0.2 SCK5065 6 5 0.59 SCK5075 7 5 0.6 SCK5085 8 5 0.65 SCK55 5 0.78 3.6 2 75-40 ~ +200 SCK525 2 5 0.85 SCK554 5 4 0.26 SCK564 6 4 0.265 SCK584 8 4 0.273 SCK5204 20 4 0.283 SCK5224 22 4 0.308 SCK5253 25 3 0.425 SCK5303 30 3 0.46 SCK5333 33 3 0.484 SCK5403 40 3 0.5 SCK5473 47 3 0.57 SCK5802X 80 2.5 0.693 SCK5202 20 2.0 SCK200R7 0.7 5 0.035 SCK20R0 3 0.034 SCK20R5.5.5 0.04 SCK202R0 2 0.062 SCK202R5 2.5 9 0.083 SCK203R0 3 8.5 0.078 SCK204R0 4 8 0.080 SCK204R7 4.7 7.5 0.4 SCK205R0 5 7.5 0.8 SCK206R0 6 7 0.20 4.9 28 3-40~+200 SCK206R8 6.8 6.5 0.30 SCK207R0 7 6.5 0.32 SCK208R0 8 6 0.6 SCK20 5.5 0.96 SCK2020 2 5 0.97 SCK2030 3 5 0.23 SCK2050 5 4.5 0.258 SCK2060 6 4.5 0.276 SCK2080 8 4 0.280 SCK20200 20 4 0.306
Part no. Zero power resistance Max. steady state current Residual resistance at 25 Imax Max. power rating Thermal dissipation constant Thermal time constant Operating temperature range R25(Ω) Imax(A) R Imax (Ω) Pmax(W) δ(mw/ C) τ(sec.) T L ~T U ( C) Safety Approvals UL cul CSA TUV CQC SCK25R0 20 0.020 SCK25R5.5 8.5 0.023 SCK252R0 2 8 0.025 SCK252R5 2.5 5 0.032 SCK253R0 3 4.5 0.042 SCK254R0 4 4 0.044 SCK254R7 4.7 3 0.052 SCK255R0 5 2 0.06 7.0 30 30-40 ~ +200 SCK256R8 6.8.5 0.082 SCK257R0 7 0.092 SCK258R0 8 9 0.5 SCK25 8 0.4 SCK2520 2 7.5 0.64 SCK2550 5 6.5 0.2 SCK2580 8 5.5 0.23 SCK25200 20 5 0.270 SCK30R0 30 0.06 SCK30R5.5 25 0.020 SCK302R0 2 23 0.022 SCK302R5 2.5 8 0.030 SCK303R0 3 7 0.035 SCK304R0 4 6 0.048 SCK304R7 4.7 5 0.055 SCK305R0 5 4 0.057 8.0 40 90-40 ~ +200 SCK306R8 6.8 2 0.077 SCK307R0 7.5 0.084 SCK308R0 8.5 0. SCK30 0.5 SCK3020 2 9 0.42 SCK3050 5 8 0.75 SCK3080 8 7 0.2 SCK30200 20 6 0.233 Note : = Tolerance of resistance Note2:UL&cUL File No. E38827 CSA File No. 97495 TUV File No. R 5005055 CQC File No. CQC0400942~944;CQC0400963~965;CQC0500984~985; CQC0500988~990;CQC0500993
Maximum power rating (Pmax) Max power rating (%) 0 T U :Maximum operating temperature T L :Minimum operating temperature For example:ambient temperature(ta)=55 Maximum operating temperature(tu)=200 P Ta =(Tu-Ta)/(Tu-25) Pmax 82% Pmax T L 0 25 T U Ambient temperature ( ) R-T Characteristic Curve(representative) 0 SCK05052~SCK0520X3 0 SCK08042~SCK0820 0. -30-20 - 0 20 30 40 50 60 70 80 90 20 30 40 50 0. -30-20 - 0 20 30 40 50 60 70 80 90 20 30 40 50 60 70 Temperature ( ) SCK0520X3 SCK05 SCK05052 Temperature ( ) SCK0820 SCK0852 SCK082 SCK08082 SCK08053 SCK08042
R-T Characteristic Curve(representative) 00 SCK5~SCK20 0 SCK3R37~SCK3203 0 0. SCK20 SCK80 SCK202 SCK62X SCK3 SCK83 SCK54 SCK2R55A SCK5 0. SCK3203 SCK353 SCK34 SCK3084 SCK3055 SCK32R56 SCK3R37 0.0-30 -20-0 20 30 40 50 60 70 80 90 20 30 40 50 60 70 Temperature ( ) 0.0-30 -20-0 20 30 40 50 60 70 80 90 20 30 40 50 60 70 80 90 200 Temperature ( ) SCK5R38~SCK5473 SCK20R0~SCK20200 0 0 0. SCK5473 SCK5403 SCK5253 SCK5204 SCK564 SCK55 SCK5075 SCK5056 SCK5037 SCK52R58 SCK5R58 SCK5R38 0. SCK20200 SCK20 SCK205R0 SCK205R5 SCK20R0 0.0-30 -20-0 20 30 40 50 60 70 80 90 20 30 40 50 60 70 80 90 200 Temperature ( ) 0.0-30 -20-0 20 30 40 50 60 70 80 90 20 30 40 50 60 70 80 90 200 Temperature ( )
R-T Characteristic Curve(representative) 0 SCK25R0~SCK25200 0 SCK30R0~SCK30 SCK252 SCK25200 0. SCK25 SCK255R0 0. SCK30200 SCK30 SCK305R0 SCK25R0 SCK30R0 0.0-40 -30-20 - 0 20 30 40 50 60 70 80 90 20 30 40 50 60 70 80 90 200 Temperature ( ) 0.0-40 -30-20 - 0 20 30 40 50 60 70 80 90 20 30 40 50 60 70 80 90 200 Temperature ( )
V-I characteristic curve (representative) SCK05052~SCK0520X3 Voltage (V) SCK08042~SCK0820 Voltage (V) Voltage (V) SCK5~SCK20
NTC Thermistor:SCK Series SCK3R37~SCK3203 Voltage (V) SCK5R38~SCK5473 Voltage (V) SCK20R0~SCK20200 Voltage (V)
SCK25R0~SCK252 Voltage(V) SCK30R0~SCK30200 Voltage(V)
Recommended soldering condition Wave flow soldering profile Preheat(air) Soldering Cooling 260 Max. Temperature 30±20 Tamb Time ~3 /sec 200 /sec <s >60sec Recommended Reworking Conditions With Soldering Iron Item Temperature of Soldering Iron-tip Distance from thermistor Soldering Time Conditions 360 (max.) 2 mm (min.) 3 sec (max.)
Reliability test Item Standard Test Conditions / Methods Specifications Gradually applying the force specified below to each terminal and keeping the unit fixed for ± sec Tensile Strength of Terminals IEC68-2-2 Terminal diameter (mm) Force (Kg) 0.5<d 0.80.0 0.8<d.25 2.0 Solderability IEC68-2-20 235 ± 5, 2 ± 0.5 sec At least 95% of terminal electrode is covered by new solder Resistance to Soldering Heat IEC68-2-20 260 ± 5, ± sec R/R % High Temperature Storage Damp Heat IEC68-2-2 UL434 IEC68-2-3 UL434 Tmax ± 5 x 0± 24HRS 40 ± 2, 90~95% RH, 0 ± 24HRS R/R 20 % R/R 20 % The thermal shock conditions shown below shall be repeated 5 cycles Step Temperature ( ) Period (minutes) Thermal Shock IEC68-2-4 UL434 Tmin ± 5 30 ± 3 2 Room temperature 5 ± 3 R/R 20 % 3 Tmax ± 5 30 ± 3 4 Room temperature 5 ± 3 Life Test CNS5550 25 ± 5, Imax. X 0± 24HRS 25 ± 5, Imax., C T, min ON / 5 min OFF x 0 cycles Endurance UL434 C T = Capacitance at 240 Vac R/R 20 % R/R 20 % Insulation test MIL-STD-202F -Method 302 0 V DC min 500 MΩ