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2920L075 Datasheet(PDF) 1 Page - Littelfuse |
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2920L075 Datasheet(HTML) 1 Page - Littelfuse |
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1 / 5 page  www.littelfuse.com ©2006 Littelfuse POLYFUSE® Resettable PTCs Surface Mount 2920L Series Specifications are subject to change without notice. Electronics Designers Guide 2920L Series The 2920L series device provides surface mount overcurrent protection for medium voltage ( ≤60V) applications where resettable protection is desired. Electrical Characteristics Part Number Marking 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 ( Ω) R typ ( Ω) R 1max ( Ω) 2920L030 LF030 0.30 0.60 60 10 1.50 1.50 3.00 1.200 3.000 4.800 X X 2920L050 LF050 0.50 1.00 60 10 1.50 2.50 4.00 0.350 0.870 1.400 X X 2920L075 LF075 0.75 1.50 30 40 1.50 8.00 0.30 0.350 0.670 1.000 X X 2920L100 LF100 1.10 2.20 33 40 1.50 8.00 0.50 0.120 0.270 0.410 X X 2920L125 LF125 1.25 2.50 15 40 1.50 8.00 2.00 0.070 0.160 0.250 X X 2920L150 LF150 1.50 3.00 33 40 1.50 8.00 2.00 0.080 0.150 0.230 X X 2920L185 LF185 1.85 3.70 33 40 1.50 8.00 2.50 0.065 0.110 0.150 X X 2920L200 LF200 2.00 4.00 15 40 1.50 8.00 5.00 0.050 0.090 0.125 X X 2920L200/24 LF200-24 2.00 4.00 24 40 1.50 8.00 5.00 0.050 0.090 0.125 X X 2920L250 LF250 2.50 5.00 15 40 1.50 8.00 10.00 0.035 0.060 0.085 X X 2920L260 LF260 2.60 5.00 6 40 1.50 8.00 10.00 0.025 0.050 0.075 X X 2920L300 LF300 3.00 5.00 6 40 1.50 8.00 20.00 0.015 0.033 0.048 X X 2920L300/15 LF300-15 3.00 5.00 15 40 1.50 8.00 20.00 0.015 0.033 0.048 X X Description I hold = Hold current: maximum current device will pass without tripping in 20°C still air. I trip = Trip current: minimum current at which the device will trip in 20°C 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 (Vmax) P d = Power dissipated from device when in the tripped state at 20°C 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 20°C measured one hour after tripping or reflow soldering of 260°C for 20 sec. Caution: Operation beyond the specified rating may result in damage and possible arcing and flame. Agency Approvals AGENCY AGENCY FILE NUMBER E183209 R50082521 Features Applications • RoHS compliant and lead-free • Fast response to fault currents • High voltage • Low-profile • IEE1394 port protection • Powered ethernet port protection (IEEE 802.3 af) • Automotive electronic control module protection • Low voltage telecom equipment protection |
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