JK250-040U

J K250 SERIES Positive Temperature Coefficient (PTC) Features ■ ■ ■ ■ ■ ■ Radial leaded devices. Over-current protection High voltage surge capabilities Flame retardant epoxy polymer insulating material meets UL94 V-0 requirement. Available in lead-free version. Meets MSL level 1, per J-STD-020 Dimensions (Unit: mm) Part Number A B C D E F Max. Max. ±0.6 Max. Typ. Min. JK250-030 6.0 8.0 5. 1 4.6 0.6 7.6 DZ JK250-040 7.4 13.5 / 12.7 5.1 4.6 0.6 4.6 / 7.6 DY / DZ JK250-060 7.4 14.5 / 12.7 5.1 4. 6 0.6 4.6 / 7.6 DY / DZ JK250-080 7.4 14.5 / 12.7 5.1 4.6 0.6 4.6 / 7.6 DY / DZ JK250-090 7.4 14.5 / 12.7 5.1 4. 6 0.6 4.6 / 7.6 DY / DZ JK250-110 7.0 14.5 / 10.5 5.1 4.6 0.6 4.6 / 7.6 SY / SZ JK250-120 7.0 14.5 / 10.5 5.1 4. 6 0.6 4.6 / 7.6 SY / SZ JK250-145 7.5 15.0 / 11.0 5.1 4.6 0.6 4.6 / 7.6 SY / SZ JK250-180 10.5 18.5 / 14.5 5.1 4.6 0.6 4.6 / 7.6 SY/SZ/DZ JK250-200 10.5 17.0 5.1 4.6 0.6 7.6 SZ / DZ JK250-400 11.2 17.0 5.1 4.6 0.8 7.6 SZ JK250-600 16.0 18.0 5.1 4.6 0.8 7.6 SZ JK250-800 20.0 22.0 5. 1 4.6 0.8 7.6 SZ 1/5 Style. J K250 SERIES Electrical Characteristics Part Number IH IT VMAXi IMAX RMAX RMIN Pd typ. (A) (A) (VAC) (A) (Ω) (Ω) (W) JK250-030 0.03 0.06 250 1 90.0 35.0 1.0 JK250-040 0.04 0.08 250 3 65.0 27.0 1.0 JK250-060 0.06 0.12 250 3 45.0 20.0 1.0 JK250-080 0.08 0.16 250 3 22.0 10.0 1.0 JK250-090 0.09 0.18 250 3 20.0 7.0 1.0 JK250-110 0.11 0.22 250 3 12.0 6.0 1.0 JK250-120 0.12 0.24 250 3 10.5 6.0 1.0 JK250-145 0.145 0.29 250 3 6.5 3.5 1.0 JK250-180 0.18 0.54 250 10 3.0 1.0 1.0 JK250-200 0.20 0.40 250 10 6.0 3.0 1.0 JK250-400 0.40 0.80 250 10 3.0 1.0 1.0 JK250-600 0.60 1.20 250 10 2.0 0.6 1.0 JK250-800 0.80 1.60 250 10 1.0 0.4 1.0 ·IH = Hold current: maximum current device will pass without tripping in 25℃ still air. ·IT = Trip current: minimum current at which the device will trip in 25℃ still air. ·VMAXi = Maximum interrupt voltage device can withstand without damage at rated current. ·IMAX = Maximum fault current device can withstand without damage at rated voltage. ·RMAX = Maximum resistance of device in initial (un-soldered) state. ·RMIN = Minimum resistance of device in initial (un-soldered) state. ·Pd typ. = Typical power dissipation from device when in the tripped state at 25℃ still air. Thermal Derating Chart – IH (A) Maximum Ambient Operating Temperatures (℃ ) Part Number -20 0 25 30 40 50 60 70 85 JK250-030 0.040 0.035 0.030 0.027 0.025 0.023 0.020 0.017 0.013 JK250-040 0.053 0.047 0.040 0.036 0.034 0.031 0.027 0.024 0.019 JK250-060 0.079 0.070 0.060 0.055 0.051 0.046 0.041 0.037 0.029 JK250-080 0.106 0.094 0.080 0.073 0.068 0.062 0.054 0.049 0.038 JK250-090 0.119 0.105 0.090 0.082 0.077 0.069 0.061 0.055 0.043 JK250-110 0.145 0.129 0.110 0.100 0.094 0.085 0.075 0.067 0.053 JK250-120 0.158 0.140 0.120 0.109 0.102 0.092 0.082 0.073 0.058 JK250-145 0.191 0.170 0.145 0.132 0.123 0.112 0.099 0.088 0.070 JK250-180 0.238 0.211 0.180 0.164 0.153 0.139 0.122 0.110 0.086 JK250-200 0.264 0.234 0.200 0.182 0.170 0.154 0.136 0.122 0.096 JK250-400 0.528 0.468 0.400 0.364 0.340 0.308 0.272 0.244 0.192 JK250-600 0.792 0.702 0.600 0.546 0.510 0.462 0.408 0.366 0.288 JK250-800 1.056 0.936 0.800 0.728 0.680 0.616 0.544 0.488 0.384 2/5 J K250 SERIES Test Procedures and Requirement Items Test Conditions Accept/Reject Criteria Resistance In still air @25℃ Rmin ≤ R ≤ Rmax Time to Trip Specified current, Vmax, 25℃ T ≤ max. Time to trip (Ttrip) Hold Current 60 min, at IH No trip Trip Cycle Life Vmax, Imax, 100 cycles No arcing or burning Trip Endurance Vmax, 24hours No arcing or burning Typical Time-to-Trip Charts @25℃ 1000 Time to Trip (s) 100 N 10 L K J I 1 H G F E D C B A 0.1 0.01 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 Fault Current (A) Storage Recommendations ■ ■ ■ ■ Storage Temperature: -10℃~+40℃ Relative Humidity: ≤80%RH Keep away from corrosive atmosphere and sunlight. Period of Storage: 1 year. 3/5 A=JK250-030 B=JK250-040 C=JK250-060 D=JK250-080 E=JK250-090 F=JK250-110 G=JK250-120 H=JK250-145 I=JK250-180 J=JK250-200 K=JK250-400 L=JK250-600 N=JK250-800 J K250 SERIES Wave Soldering Recommendation Parameters 300 Soldering 3~5s 250 245℃~260℃ 200 150 100℃~130℃ 100 Cooling 50 0 0 50 100 150 200 250 Time (s) Conditions Items Pre-Heating Zone Soldering Zone Cooling Zone Refer to the condition recommended by the flux manufacturer. Maximum ramping rate should not exceed 4℃/sec. Maximum solder temperature should not exceed 260℃ Forced cooling Manual Soldering Recommendation Parameters Items Conditions Soldering condition The highest power of the manual soldering iron should be 30W or less, soldering temperature should not be higher than 280℃. Soldering time The soldering time should be kept within 3 seconds, otherwise it might cause insulation layer cracking, and increased part resistance. Soldering position The distance on the leads between the soldering point and bottom of the PPTC body should be equal or greater than 4mm. Other The soldering iron should not contact the PPTC body except the leads. If the soldering conditions are kept to lower temperature, less time and larger distance, the outcome of the soldering will be better. Notes: 1. Before using the device must be stored in the original bags, if the storage conditions do not guarantee, the device may not be able to meet the given value. 2. The devices can’t used for reflow soldering. 4/5 J K250 SERIES Mechanical Characteristics Items Specifications Test Conditions/Methods Tensile strength No visible damage 1.0Kgf, 10 seconds Bending strength No visible damage 0.5Kgf, 90°, 3 times Vibration No visible damage Freq: 10-55Hz, Amp: 0.75mm, 1min Reliability Test Items Specifications Solder ability No visible damage，Solder OK, Solder area ≥95% 245±5℃, 2±1s, dipping depth=0.5inch max from the body Resistance to soldering heat No visible damage, Electrical OK, │△R/R0│≦50% 260±5℃, 10+2/-0s Damp heat, steady state No visible damage, Electrical OK, │△R/R0│≦20% 40±2℃, 90~95 % RH, total 48Hrs, after 4Hrs test electrical parameter Temperature cycling No visible damage, Electrical OK, │△R/R0│≦20% Ta＝-10+0/-1℃ 30min, Ta＝70+1/-0℃ 30min, 5cycles, after 1hr test electrical parameter 5/5 Test Conditions/Methods