Resettable Ptc Products Page 111 Resettable PTC Products

POLY-FUSE Resettable PTCs 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/22/17 Radial Leaded > 265R Series The 265R Series is designed to protect against short duration high voltage fault currents (power cross or power induction surge) typically found in telecom applications (265Vrms). The series can be used to help telecom networking equipment meet the protection requirements specified in ITU K.20 and K.21. Electrical Characteristics Part Number I hold (A) I trip (A) V max (V int ) I max (A) Maximum Time To Trip Resistance Agency Approvals Current (A) Time (Sec.) R min ( ) R typ ( ) R 1max ( ) 265R050 0.05 0.12 265 1.0 0.25 15.0 18.50 31.00 65.00 Pending 265R080 0.08 0.19 265 1.2 0.40 15.0 7.40 12.00 26.00 265R120 0.12 0.30 265 1.2 0.60 15.0 3.00 6.50 12.00 265R160 0.16 0.37 265 2.0 0.80 15.0 2.50 4.10 7.80 265R250 0.25 0.56 265 3.5 1.25 18.5 1.30 2.10 3.80 265R330 0.33 0.80 265 4.5 1.65 21.0 0.77 1.24 2.60 265R400 0.40 0.90 265 5.5 2.00 26.0 0.60 0.97 1.90 265R550 0.55 1.25 265 7.0 2.75 26.0 0.45 0.73 1.45 265R600 0.60 1.35 265 5.5 3.00 36.0 0.40 0.70 1.42 265R750 0.75 1.50 265 7.5 3.75 18.0 0.32 0.48 0.84 265R800 0.80 1.80 265 10.0 4.00 40.0 0.30 0.70 1.32 265R1000 1.00 2.00 265 10.0 5.00 21.0 0.22 0.33 0.58 265R1250 1.25 2.50 265 12.5 6.25 23.0 0.17 0.25 0.44 265R2000 2.00 4.00 265 20.0 10.00 28.0 0.09 0.13 0.22 Description Features Applications Designed for line voltage applications Protection against both over-current and over- temperature Fast time-to-trip .05-2.0 hold current range 265VAC interrupt rating Binned and sorted narrow resistance ranges available RoHS compliant, Lead- Free and Halogen-Free* Customer Premises Equipment (CPE) Central Office (CO)/ telecom centers LAN/WAN equipment Access equipment Agency Approvals I hold = Hold current: maximum current device will pass without tripping in 25C still air. I trip = Trip current: minimum current at which the device will trip in 25C still air. V int = Maximum voltage the device can withstand without damage at rated current (I max) V op = The device regular operation voltage I max = Maximum fault current device can withstand without damage at rated voltage (V max ) P d = Power dissipated from device when in the tripped state at 25C still air. R min = Minimum resistance of device in initial (un-soldered) state. R typ = Typical resistance of device in initial (un-soldered) state. R 1max = Maximum resistance of device at 25C measured one hour after tripping. Caution: Operation beyond the specified rating may result in damage and possible arcing and flame. RoHS * 265R Series AGENCY AGENCY FILE NUMBER PENDING

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