POLY-FUSE Resettable PTCs Radial Leaded > USBR Series RoHS USBR Series Description The USBR Series radial leaded device is designed to provide overcurrent protection for USB applications where space is not a concern. Features RoHS compliant and 40A short circuit rating leadfree Operating v oltages of Fast timetotrip 6-16V Meets all USB protection requirements Agency Approvals Applications Agency Agency File Number Computers & peripherals E183209 Any USB application R50119318 Additional Information Datasheet Resources SamplesSamples Electrical Characteristics Maximum Time Agency Resistance To Trip Approvals P d I I V I hold trip max max Part Number (A) (A) (Vdc) (A) max. (W) Current Time R R min 1max (A) (Sec.) () () 06R075B 0.75 1.30 6 40 0.3 8.00 0.4 0.100 0.230 X X 06R120B 1.20 2.00 6 40 0.6 8.00 0.5 0.065 0.140 X X 06R155B 1.55 2.70 6 40 0.6 7.75 2.2 0.040 0.100 X X 16R090B 0.90 1.80 16 40 0.6 8.00 1.2 0.070 0.180 X X 16R110B 1.10 2.20 16 40 0.7 8.00 2.3 0.050 0.140 X X 16R135B 1.35 2.70 16 40 0.8 8.00 4.5 0.040 0.120 X X 16R160B 1.60 3.20 16 40 0.9 8.00 9.0 0.030 0.110 X X 16R185B 1.85 3.70 16 40 1.0 8.00 10.0 0.030 0.090 X X 16R250B 2.50 5.00 16 40 1.2 8.00 40.0 0.020 0.060 X X I = Hold current: maximum current device will pass without tripping in 20C still air. R = Minimum resistance of device in initial (un-soldered) state. hold min I = Trip current: minimum current at which the device will trip in 20C still air. R = Typical resistance of device in initial (un-soldered) state. trip typ V = Maximum voltage device can withstand without damage at rated current (I max) R = Maximum resist ance of device at 20C measured one hour after tripping or reflow max 1max soldering of 260C for 20 sec. I = Maximum fault current device can withstand without damage at rated voltage (V ) max max Caution: Operation beyond the specified rating may result in damage and possible arcing P = Power dissipated from device when in the tripped state at 20C still air. d and flame. 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. 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/13/19 POLY-FUSE Resettable PTCs Radial Leaded > USBR Series Temperature Rerating Ambient Operation Temperature -40C -20C 0C 20C 40C 50C 60C 70C 85C Part Number Hold Current (A) 06R075B 1.05 0.95 0.85 0.75 0.65 0.60 0.55 0.50 0.43 06R120B 1.69 1.52 1.36 1.20 1.04 0.96 0.88 0.80 0.68 06R155B 2.17 1.96 1.75 1.55 1.34 1.24 1.13 1.03 0.88 16R090B 1.31 1.17 1.04 0.90 0.75 0.69 0.61 0.55 0.47 16R110B 1.60 1.43 1.27 1.10 1.00 0.92 0.75 0.67 0.57 16R135B 1.96 1.76 1.55 1.35 1.12 1.04 0.92 0.82 0.70 16R160B 2.32 2.08 1.84 1.60 1.33 1.23 1.09 0.98 0.83 16R185B 2.68 2.41 2.13 1.85 1.54 1.42 1.26 1.13 0.96 16R250B 3.63 3.25 2.88 2.50 2.08 1.93 1.70 1.53 1.30 Average Time Current Curves Temperature Rerating Curve 170% USBR 150% 100 130% 110% 10 90% 70% 50% 1 30% 10% -40 -30 -20 -10 01020304050607080 0.1 Temperature (C) Note: Typical Temperature rerating curve, refer to table for derating data 0.01 0.001 0.1 110 100 Current in Amperes The average time current curves and Temperature Rerating curve performance is affected by a number or variables, and these curves provided as guidance only. Customer must verify the performance in their application. Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics. 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/13/19 Time in Seconds 0.75A 1.20A 1.55A 0.90A 1.10A 1.35A 1.60A 1.85A 2.50A Percentage of Rated Current