A250-120

PRODUCT DATASHEET A250 Series PTC Devices A250 Series PTC Devices Description The JDTFUSE A250 Series is designed to protect against short duration high voltage fault currents (power cross or power induction surge) typically found in telecom applications (250Vrms). The series can be used to help telecom networking equipment meet the protection requirements specified in ITU K.20 and K.21. Features ● 0.08 - 0.18A hold current range, 60VDC operating voltage ● 250VAC interrupt rating ● Fast time-to-trip ● Binned and sorted narrow resistance ranges available ● RoHS compliant, Lead-Free and Halogen-Free* Agency Approvals Agency Applications File Number E472196 ● Customer Premises Equipment (CPE) ● Central Office (CO)/telecom centers ● LAN/WAN equipment ● Access equipment pending Regulation Standard 2002/95/EC EN14582 JDT FUSE Industrial Corp. www.jdtfuse.com Page 1/6 A250 Series PTC Devices Performance Specification Model I hold I trip V max V max Operating Interrupt (V dc) (Vrms) I max @25°C (A) @25°C (A) (A) A250-080 0.080 0.160 60 250 3.0 A250-110 0.110 0.220 60 250 A250-120 0.120 0.240 60 A250-145 0.145 0.290 A250-180 0.180 A250-200 0.200 Pd Typ. (W) Maximum Time To Trip Resistance Current (A) Time (Sec) R i min R1max 1.00 0.35 3.00 12.0 33.0 3.0 1.00 1.00 1.10 6.0 16.0 250 3.0 1.00 1.00 1.50 6.0 14.0 60 250 3.0 1.00 1.00 2.50 3.0 12.0 0.360 60 250 10.0 1.50 1.00 18.00 1.0 2.50 0.400 60 250 10.0 1.50 1.00 15.00 1.5 4.50 (Ω) (Ω) I hold = Hold Current. Maximum current device will not trip in 25°C still air. I trip = Trip Current. Minimum current at which the device will always trip in 25°C still air. V max = Maximum operating voltage device can withstand without damage at rated current (Imax). I max = Maximum fault current device can withstand without damage at rated voltage (V max). Pd = Power dissipation when device is in the tripped state in 25°C still air environment at rated voltage. Ri min/max = Minimum/Maximum device resistance prior to tripping at 25°C. R1max = Maximum device resistance is measured one hour post reflow. CAUTION : Operation beyond the specified ratings may result in damage and possible arcing and flame. Environmental Specifications Conditions Test Passive aging Humidity aging Thermal shock 　 　 　 Resistance to solvent 　 Vibration 　 Resistance change 　 +85°C, 1000 hrs. ±5% typical 　 +85°C, 85% R.H. , 168 hours ±5% typical 　 +85°C to -40°C, 20 times ±33% typical 　 MIL-STD-202,Method 215 No change MIL-STD-202,Method 201 No change 　 Ambient operating conditions : - 40 °C to +85 °C Maximum surface temperature of the device in the tripped state is 125 °C JDT FUSE Industrial Corp. www.jdtfuse.com Page 2/6 A250 Series PTC Devices Thermal Derating Curve Derating Curves for A250 Series 180 Percentage of Rated Current 160 140 120 100 80 60 40 20 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 Temperature (°C ) Average Time-Current Curve 1000 A250-080 TIME IN SECOND 100 A250-110 10 A250-120 1 A250-145 0.1 A250-180 0.01 0 1 2 3 CURRENT IN AMPERES JDT FUSE Industrial Corp. www.jdtfuse.com Page 3/6 A250 Series PTC Devices Ihold Versus Temperature Maximum ambient operating temperature (Tmao) vs. hold current (Ihold) Model - 40°C - 20°C 0°C 25°C 40°C 50°C 60°C 70°C 85°C A250-080 0.124 0.110 0.095 0.080 0.066 0.059 0.051 0.044 0.033 A250-110 0.171 0.151 0.131 0.110 0.091 0.081 0.071 0.061 0.046 A250-120 0.186 0.165 0.143 0.120 0.099 0.088 0.077 0.066 0.050 A250-145 0.225 0.199 0.172 0.145 0.119 0.106 0.093 0.080 0.060 A250-180 0.279 0.247 0.213 0.180 0.147 0.131 0.115 0.099 0.074 A250-200 0.264 0.243 0.220 0.200 0.182 0.175 0.163 0.154 0.143 Soldering Parameters TP 20~40 S TP 260 Ramp-up Critical Zone TL to TP TL 217 tL Tsmax 60~150 s Temperature (°C ) 200 Tsmin Ramp-down 150 ts Preheat 60~180 s 25 t 25°C to peak Time Profile Feature Average Ramp-Up Rate Pb-Free Assembly 3℃/second mac. (Ts max to T p) Preheat -Temperature Min(Ts min) 150℃ -Temperature Max(Ts max) 200℃ -Time(Ts min to Ts max) 60~180 seconds Time maintained above: -Temperature(TL) 217℃ -Time(tL) 60~150 seconds Peak Temperature(Tp) 260℃ Ramp-Down Rate 6℃/second max. Time 25℃ to Peak Temperature 8 minutes max Storage Condition 0℃~35℃,≤70%RH JDT FUSE Industrial Corp. www.jdtfuse.com Recommended reflow methods: IR, vapor phase oven, hot air oven, N2 environment for lead-free Recommended maximum paste thickness is 0.25mm Devices can be cleaned using standard industry methods and solvents. Note 1:All temperature refer to topside of the package, measured on the package body surface. Note 2: If reflow temperatures exceed the recommended profile, devices may not meet the performance requirements. Page 4/6 A250 Series PTC Devices Physical Dimensions(mm.) A A E a250 B B D D RF080 = Trademark = 0.08A hold current C A B C D E Max. Typ. Max. Min. Max. A250-080 5.8 9.9 5.1 5.0 3.8 A250-110 6.5 11.0 5.1 5.0 3.8 A250-120 7.1 11.0 5.1 5.0 3.8 A250-145 7.1 11.0 5.1 5.0 3.8 A250-180 9.0 12.6 5.1 5.0 3.8 A250-200 9.0 12.6 5.1 5.0 4.7 Model PHYSICAL SPECIFICATIONS : Materials : A250- 080~180: Tin-plated copper, 22AWG, Φ0.65mm(0.026 in). Lead Solderability : MIL-STD-202, Method 208E JDT FUSE Industrial Corp. www.jdtfuse.com Page 5/6 A250 Series PTC Devices Packaging Quantity A250 120 T RA B-0.5 KR or KU Product Hold T= Pre-tripped Rx= B-x.x= K=Kink leads name Current U= Uncoated Resistance Resistance Bin R=Tape&Reel 250V (mA) Blank= Standard range Reel QTY Bag QTY Range within 0.5ohm U=Bulk package (Optional) 1500 500 in one lot. (Optional) Tape & Reel packaging per EIA468-B standard. Cross Reference Cross Reference Model Tyco / PolySwitch® Bourns / POLY-FUSE® Polytronics / EVERFUSE® A250-080 TRF250-080 - HVR250P080CF A250-110 - - - A250-120 TRF250-120 MF-RX012/250 HVR250P120CF A250-145 TRF250-145 MF-RX014/250 HVR250P145CF A250-180 TRF250-180 MF-RX018/250 HVR250P180CF A250-200 TRF250-200 MF-RX020/250 HVR250P200CF “PolySwitch” is a registered trademark of Tyco Electronics. “POLY-FUSE” is a registered trademark of Littelfuse,Inc. “EVERFUSE” is a registered trademark of Polytronics Technology Corp. JDT FUSE Industrial Corp. www.jdtfuse.com Page 6/6