Fuseology Selection Guide Page 16 Fuseology Selection Guide

Fuseology Selection Guide www.littelfuse.com Fuse and PTC Products Selection Guide FUSE PRODUCTS Fuses provide protection by completely stopping the flow of energy to sensitive circuits. If current exceeds the fuse's operating range, the metal wire or strip melts safely within an enclosure. Littelfuse offers the most extensive range of fuses available, and for easy replacement of cartridge fuses Littelfuse offers a wide selection of fuseholders including panel mount, in-line, and surface and thru-hole circuit board mount devices. Series Name 1 View Datasheet Order Samples Size 2 Time Lag Fast Acting Very Fast Acting Device Range 3 (Operating Current Options in Amps) Max. Voltage Rating 3 (Volts) Interrupting Rating at Max. Voltage Rating 3 (Amps) Operating Temperature Range Agency Approvals 3 Halogen Free RoHS Compliant Lead Free UL UR CSA PSE UMF Surface Mount: Ceramic Chip 0.25 - 8 125 / 63 / 32 50 0.25 - 6 32 / 24 50 440 1206 1.75 - 8 32 50 441 0603 2 - 6 32 50 469 1206 1 - 8 24 / 32 24 - 63 10, 12, 15, 20 32 150 Thin Film 466 1206 50 429 1206 7 24 35 0.5 - 3 63 / 32 35 - 50 32 35 - 50 494 0603 0.25 - 5 32 35 - 50 32 35 Nano 2 Fuse 125 / 65 35 - 50 449 2410 0.375 - 5 125 50 2410 125 / 65 35 - 50 2410 0.375 - 12 125 / 72 50 20, 25, 30, 40 125 100 1.0 - 10 75 / 63 50 0.5 - 5 250 50 464 4818 0.5 - 6.3 250 100 1 - 6.3 250 100 462 4118 0.500 - 5 350 100 0.500 - 3.15 600 100 Telelink Fuse 461 4012 0.5 - 2.0 600 60 461E 4012 1.25 600 60 OMNI-BLOK Fuseholder * 125 35 - 50 154T * 0.375 - 5 125 50 Fuse and Clip Assemblies 157 * 125 35 - 50 157T * 0.375 - 5 125 50 * 0.5 - 2 600 60 160 * 0.5 - 5 250 50 PICO SMF Fuse * 125 50 - 300 460 * 0.5 - 5 125 50 Flat Pak 202 * 0.062 - 5 250 50 * 0.25 - 5 250 50 EBF 446 * 2.0 - 10.0 350 100 * 2.0 - 10.0 350 100 TABLE CONTINUES ON NEXT PAGE (1) Detailed information about most product series listed here can be found on our web site. (3) In some cases for these categories the ratings, agency approvals and specifications vary by part number and are presented here as ranges representing the whole series. Please refer to product data on www.littelfuse.com and in our data sheets for detailed information by part number. * Please refer to data sheet for detailed specifications. 16

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