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| POLYFUSE(R) RESETTABLE FUSES LRD Strap Type, 15 V / 20 V Standard UL 1434 1st Edition CSA C22.2 No. 0 CSA TIL No. CA-3A cULus Recognition TUV The LRD product series are designed to reduce the device's resistance at the same hold current rating. The smaller thermal mass of these devices also provide benefit of faster trip time and increase the battery safety level. The LRD devices are ideally suited for battery packs used for portble computer and camcorder applications. Specifications Packaging A small pack D standard Materials Insulating material: Polyester Tape Terminals: Nickel Max. Device Surface Temperature in Tripped State 125 C Operating / Storage Temperature -40 C to +85 C (consider derating) Humidity Ageing +85 C, 85 % R.H., 7 days, 5 % typical resistance change Vibration MIL-LRD-883C, Condition A, no change Marking "P", Part Code, identification, lot number Approvals Features Dimensions (mm) S: one slot Dimensions (mm) Model Fig LRD190 LRD190S LRD260 LRD260S LRD380 LRD450 LRD550 LRD600 LRD730 1 2 1 2 1 1 1 1 1 A Min Max 19.9 19.9 20.9 20.9 24.0 24.0 35.0 24.0 27.1 22.1 22.1 23.1 23.1 26.0 26.0 37.0 26.0 29.1 B Min Max 4.9 4.9 4.9 4.9 6.9 9.9 6.9 13.9 13.9 5.5 5.5 5.5 5.5 7.5 10.5 7.5 14.5 14.5 C Min Max 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 D Min 5.5 5.5 4.1 4.1 5.3 5.3 5.3 4.1 4.1 E Min Max 3.9 3.9 3.9 3.9 4.9 5.9 4.9 5.9 5.9 4.1 4.1 4.1 4.1 5.1 6.1 5.1 6.1 6.1 packaging quantity small pack standard 500 500 500 500 500 500 500 500 500 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 cURus * * * * * * * * * LRD190 LRD190S LRD260 LRD260S LRD380 LRD450 LRD550 LRD600 LRD730 NOTE: I hold = I trip = Vmax = I max = 1.90 1.90 2.60 2.60 3.80 4.50 5.50 6.00 7.30 3.90 3.90 5.80 5.80 8.30 8.90 10.50 11.70 14.10 15 15 15 15 15 20 20 20 20 100 100 100 100 100 100 100 100 100 5.0 @ 9.50 5.0 @ 9.50 5.0 @ 13.00 5.0 @ 13.00 5.0 @ 19.00 5.0 @ 22.50 5.0 @ 27.50 5.0 @ 30.00 5.0 @ 30.00 1.20 1.20 2.50 2.50 2.50 2.50 2.80 2.80 3.30 0.039 0.039 0.020 0.020 0.013 0.011 0.009 0.007 0.006 0.072 0.072 0.042 0.042 0.026 0.020 0.016 0.014 0.012 0.102 0.102 0.063 0.063 0.037 0.028 0.022 0.019 0.015 Hold current: maximum current device will pass without tripping in 20C still air. Trip current: minimum current at which the device will trip in 20C still air. Maximum voltage device can withstand without damage at rated current (I max) Maximum fault current device can withstand without damage at rated voltage (Vmax) Pd = Power dissipated from device when in the tripped state at 20C still air. Minimum resistance of device in initial (un-soldered) state. R min= R 1max= Maximum resistance of device at 20C measured one hour after tripping for 20 sec. Caution: Operation beyond the specified rating may result in damage and possible arcing and flame. Specifications are subject to change without notice Order Information Qty. OrderNumber Model Packaging 040706 In our continuing strategy to deliver unparalleled circuit protection solutions, technical expertise and application leadership, we proudly introduce the WICKMANN Group and its products to the Littelfuse portfolio. www.littelfuse.com TUV * * * * * * * * * Permissible continuous operating current is 100 % at ambient temperature of 20 C (68 F). Model Ihold ITrip Vmax. dc Imax. max. time to trip (A) (A) (V) (A) (s @ A) Pd max. (W) Resistance Approvals R min.( ) R max.( ) RI max.( ) POLYFUSE(R) RESETTABLE FUSES LRD 100.00 AB C A: LRD380 B: LRD450 C: LRD730 10.00 Time-to-Trip (s) 1.00 0.10 0.01 1.00 10.00 100.00 Fault Current (A) Thermal Derating Chart Model Ambient Operation Temperature - Ihold (A) -40 C LRD190 LRD190S LRD260 LRD260S LRD380 LRD450 LRD550 LRD600 LRD730 2.80 2.80 3.80 3.80 5.50 6.50 8.00 8.70 10.60 -20 C 2.50 2.50 3.40 3.40 4.90 5.80 7.10 7.80 9.50 0 C 2.30 2.30 3.10 3.10 4.40 5.30 6.20 7.10 8.60 23 C 1.90 1.90 2.60 2.60 3.80 4.50 5.50 6.00 7.30 40 C 1.60 1.60 2.20 2.20 3.30 3.90 4.70 5.20 6.30 50 C 1.50 1.50 2.00 2.00 3.00 3.60 4.30 4.70 5.70 60 C 1.40 1.40 1.90 1.90 2.80 3.30 4.00 4.40 5.40 70 C 1.20 1.20 1.70 1.70 2.50 2.90 3.60 3.90 4.70 85 C 1.00 1.00 1.40 1.40 2.10 2.50 3.00 3.30 4.00 040706 In our continuing strategy to deliver unparalleled circuit protection solutions, technical expertise and application leadership, we proudly introduce the WICKMANN Group and its products to the Littelfuse portfolio. www.littelfuse.com |
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