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30R250UU Datasheet(PDF) 1 Page - Littelfuse |
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30R250UU Datasheet(HTML) 1 Page - Littelfuse |
1 / 7 page 75 Revised: July 12, 2010 POLYFUSE® Resettable PTCs © 2010 Littelfuse, Inc 30R Series Radial Leaded > 30R Series Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/30R.html for current information. 30R Series provide overcurrent protection for low voltage (≤30V) applications where space is not a concern and resettable protection is preferred. Electrical Characteristics Part Number I hold (A) I trip (A) V max (Vdc) I max (A) P d typ. (W) Maximum Time To Trip Resistance Agency Approvals Current (A) Time (Sec.) R min (Ω) R 1max (Ω) 30R090 0.90 1.80 30 40 0.6 4.50 5.90 0.070 0.220 XX 30R110 1.10 2.20 30 40 0.7 5.50 6.60 0.050 0.170 XX 30R135 1.35 2.70 30 40 0.8 6.75 7.30 0.040 0.130 XX 30R160 1.60 3.20 30 40 0.9 8.00 8.00 0.030 0.110 XX 30R185 1.85 3.70 30 40 1.0 9.25 8.70 0.030 0.090 XX 30R250 2.50 5.00 30 40 1.2 12.50 10.30 0.020 0.070 XX 30R300 3.00 6.00 30 40 2.0 15.00 10.80 0.020 0.080 XX 30R400 4.00 8.00 30 40 2.5 20.00 12.70 0.010 0.050 XX 30R500 5.00 10.00 30 40 3.0 25.00 14.50 0.010 0.050 XX 30R600 6.00 12.00 30 40 3.5 30.00 16.00 0.005 0.040 XX 30R700 7.00 14.00 30 40 3.8 35.00 17.50 0.005 0.030 XX 30R800 8.00 16.00 30 40 4.0 40.00 18.80 0.005 0.020 XX 30R900 9.00 18.00 30 40 4.2 40.00 20.00 0.005 0.020 XX Description Features Applications epoxy polymer insulating material meets UL 94V-0 requirements Free and Halogen-Free* and peripherals I hold = Hold current: maximum current device will pass without tripping in 23°C still air. I trip = Trip current: minimum current at which the device will trip in 23°C still air. V max = Maximum voltage device can withstand without damage at rated current (Imax) I max = Maximum fault current device can withstand without damage at rated voltage (Vmax) P d = Power dissipated from device when in the tripped state at 23°C still air. R min = Minimum resistance of device in initial (un-soldered) state. R 1max = Maximum resistance of device at 23°C measured one hour after tripping. Caution: Operation beyond the specified rating may result in damage and possible arcing and flame. Agency Approvals AGENCY AGENCY FILE NUMBER E183209 R50119318 * Effective January 1, 2010, all 30R PTC products will be manufactured Halogen Free (HF). Existing Non-Halogen Free 30R PTC products may continue to be sold, until supplies are depleted. |
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