Resettable Ptc Products Page 66 Resettable PTC Products

POLY-FUSE Resettable PTCs 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/22/17 Radial Leaded > USBR Series The USBR Series radial leaded device is designed to provide overcurrent protection for USB applications where space is not a concern. Electrical Characteristics Part Number I hold (A) I trip (A) V max (Vdc) I max (A) P d max. (W) Maximum Time To Trip Resistance Agency Approvals Current (A) Time (Sec.) R min ( ) R 1max ( ) 06R075B 0.75 1.30 6 40 0.3 8.00 0.4 0.100 0.230 X 06R120B 1.20 2.00 6 40 0.6 8.00 0.5 0.065 0.140 X 06R155B 1.55 2.70 6 40 0.6 7.75 2.2 0.040 0.100 X 16R090B 0.90 1.80 16 40 0.6 8.00 1.2 0.070 0.180 X 16R110B 1.10 2.20 16 40 0.7 8.00 2.3 0.050 0.140 X 16R135B 1.35 2.70 16 40 0.8 8.00 4.5 0.040 0.120 X 16R160B 1.60 3.20 16 40 0.9 8.00 9.0 0.030 0.110 X 16R185B 1.85 3.70 16 40 1.0 8.00 10.0 0.030 0.090 X 16R250B 2.50 5.00 16 40 1.2 8.00 40.0 0.020 0.060 X Description Features Applications RoHS compliant and lead-free Fast time-to-trip Meets all USB protection requirements 40A short circuit rating Operating voltages of 6-16V Computers & peripherals Any USB application I hold = Hold current: maximum current device will pass without tripping in 20C still air. I trip = Trip current: minimum current at which the device will trip in 20C still air. V max = Maximum voltage device can withstand without damage at rated current (I max) 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 20C 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 20C measured one hour after tripping or reflow soldering of 260C for 20 sec. Caution: Operation beyond the specified rating may result in damage and possible arcing and flame. Agency Approvals RoHS USBR Series WARNING Users shall independently assess the suitability of these devices for each of their applications Operation of these devices beyond the stated maximum ratings could result in damage to the devices and lead to electrical arcing and/or fire These devices are intended to protect against the effects of temporary over-current or over-temperature conditions and are not intended to perform as protective devices where such conditions are expected to be repetitive or prolonged in duration Exposure to silicon-based oils, solvents, electrolytes, acids, and similar materials can adversely affect the performance of these PPTC devices These devices undergo thermal expansion under fault conditions, and thus shall be provided with adequate space and be protected against mechanical stresses Circuits with inductance may generate a voltage (L di/dt) above the rated voltage of the PPTC device. AGENCY AGENCY FILE NUMBER E183209 R50119318 Additional Information Datasheet Samples Resources Samples

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