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1 www.littelfuse.com/fuseholders ?2010 littelfuse, inc. speci?cations are subject to change without notice. fuse holder selection guide fuse type fuse series panel mount pc board blocks clips in- line 4.5x14.5 mm (2ag) 225 3452 international shock-safe 254101 254 omni-blok 111501 150274 229 345 international shock-safe (old) 254121 berylium copper 111505 berylium copper 245001 shorty solder qc 111506 245002 shorty nema qc 286377 flip top 5x20 mm 213 3455 international shock-safe 345121 horizontal 520003 omni-blok qc 111501 150274 215 345 international shock-safe (old) 521101 omni-blok 520004 omni-blok soder 445001 216 286377 flip top optf0060w no cover optional 520005 omni-blok anti-rotation 111505 berylium copper 217 800 optf0075p cover optional 30210 218 820 oobs0232p cover 111506 berylium copper 219a 823 snap-in 646 520001 232 821 648 cover fb58a 100054 233 850 640 cover and puller combo fb58b 100056 234 851 649 111005 t&r 235 860 4 watt 656 659,660 cover 519 t&r 239 870 medical,captive cap 658 surface mt 659,660 cover 520 fh503r 810 horizontal 521 fh503s 830 horizontal 518 combo,3aa & 5x20 862 horizontal 811 vertical 831 vertical 4pin 834 vertical 852 vertical 2 pin 853 vertical 2pin 860 4 watt 6.3x32 mm (3ab/3ag) 312 34453 international shock-safe 345101 horizontal 354 omni-blok 102071 155100 twist-lock 313 345 international shock-safe (old) 810 horizontal 356 screw terminal 102074 150215 assem,no fuse 314 342 traditional 862 horizontal 359 screw terminal 122083 155000 heavy duty 326 344 indicating snap mount 811 vertical fb66a 122067 berylium copper 150079 assem,no fuse 348 snap mount 122088 150322 120vac ul 346377 flip top 122093 berylium copper 342006 watertight screw-in 102078 340312/3 shielded watertight 102079 342024 mll high temp knurled 102076 342025 mll high temp ?uted 102076 800 2.5 watt 102080 80001 500v 2.5 watt 122090 berylium copper 860 4 watt 121001 berylium copper fh602r 100058 fh604r 101001 101002 101003 102064 121004 berylium copper 121002 berylium copper 518 combo,3aa & 5x20 te5 ? /tr5 ? 370,372 570 559 373,378 575 cap 560 374,379 562 375,382 564 384 565 90 571 575 cap micro tm / tr3 ? 272 273 282001 front mt.neoprene 281005 vertical silver 262 268 282007 front mt.conductive 281007 horizontal silver 269 24 282002 rear mt neoprene 281008 vertical tin 279 282008 rear mt.conductive 281010 horizontal tin 280003 125v indicating 280004 32v indicating
2 www.littelfuse.com/fuseholders ?2010 littelfuse, inc. speci?cations are subject to change without notice. series name 1 time lag (slo-blo ? ) medium acting 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 rohs compliant lead free americas europe asia ul ur csa qpl ce vde tuv bsi semko pse k ccc cqc 217 t 0.032 - 15 250 35 - 150 -55c to +125c tt tt ttttt t t 218 t 0.032 - 16 250 35 - 100 tt tt ttttt t t 213 t 0.2 - 6.3 250 35 - 63 tt tt ttt t t t 219xa t 0.4 - 6.3 250 150 tt tt ttt t t t 216 t 0.05 - 16 250 750 - 1500 tt tt ttttt t t 215 t 0.125 - 25 250 300 - 1500 tt tt ttttt t t 232 t 1 - 10 250 / 125 300 / 10,000 ttttt 235 t 0.1 - 7 250 / 125 35 - 10,000 ttt tt tt 233 t 1 - 10 125 10,000 ttt tt tt 234 t 1 - 10 250 100 - 200 ttt tt tt 239 t 0.08 - 7 250 / 125 35 - 10,000 ttt tt tt 477 t 0.5 - 16 400dc / 500ac 100 - 1500 t ttt t t fuse series name time lag (slo-blo ? ) medium acting 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 rohs compliant lead free americas europe asia ul ur csa qpl ce vde tuv bsi semko pse k ccc cqc 208 t 0.125 - 10 350 100 -55c to +125c tt t tt 209 t 0.25 - 1 350 100 tt t tt 224/225 t 0.1 - 10 250 / 125 35 - 500 ttt t t t t 229/230 t 0.25 - 7 250 / 125 35 - 400 ttt t t t t 4.5 mm x 14.5 mm (2ag) size fuse series and holder options panel mount holders pc board mount holders blocks clips in-line holders 3452 international shock-safe 254101 254 omni-blok 111501 150274 345 international shock-safe (old) 254121 berylium copper 111505 berylium copper 245001 shorty solder qc 111506 245002 shorty nema qc 286377 flip top 5 mm x 20 mm size fuse series and holder options panel mount holders pc board mount holders blocks clips in-line holders 3455 international shock-safe 345121 horizontal 520003 omni-blok qc 111501 150274 345 international shock-safe (old) 521101 omni-blok 520004 omni-blok soder 445001 286377 flip top optf0060w no cover optional 520005 omni-blok anti-rotation 111505 berylium copper 800 optf0075p cover optional 30210 820 oobs0232p cover 111506 berylium copper 823 snap-in 646 520001 821 648 cover fb58a 100054 850 640 cover and puller combo fb58b 100056 851 649 111005 t&r 860 4 watt 656 659,660 cover 519 t&r 870 medical,captive cap 658 surface mt 659,660 cover 520 fh503r 810 horizontal 521 fh503s 830 horizontal 518 combo,3aa & 5x20 862 horizontal 811 vertical 831 vertical 4pin 834 vertical 852 vertical 2 pin 853 vertical 2pin 860 4 watt
3 www.littelfuse.com/fuseholders ?2010 littelfuse, inc. speci?cations are subject to change without notice. series name 1 time lag (slo-blo ? ) medium acting 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 rohs compliant lead free americas europe asia ul ur csa qpl ce vde tuv bsi semko pse k ccc cqc 312/318 t 0.01 - 35 250 / 125 / 32 35 - 300 -55c to +125c ttt t tt t t 313/315 t 0.01 - 30 250 / 125 / 32 35 - 300 ttt t tt t t 314/324 t 0.125 - 40 250 35 - 1000 ttt t tt t t 322 t 1 - 30 250 / 65 100 - 1000 tt t tt 325/326 t 0.01 - 30 250 / 125 100 - 600 ttt t tt t t 388 t 1 - 30 250 100 ttttt 505 t 10 - 30 450 / 500 20,000 - 50,000 tt tt panel mount holders pc board mount holders blocks clips in- line holders 34453 international shock-safe 345101 horizontal 354 omni-blok 102071 155100 twist-lock 345 international shock-safe (old) 810 horizontal 356 screw terminal 102074 150215 assem,no fuse 342 traditional 862 horizontal 359 screw terminal 122083 155000 heavy duty 344 indicating snap mount 811 vertical fb66a 122067 berylium copper 150079 assem,no fuse 348 snap mount 122088 150322 120vac ul, 346377 flip top 122093 berylium copper 342006 watertight screw-in 102078 340312/3 shielded watertight 102079 342024 mll high temp knurled 102076 342025 mll high temp ?uted 102076 800 2.5 watt 102080 80001 500v 2.5 watt 122090 berylium copper 860 4 watt 121001 berylium copper fh602r 100058 fh604r 101001 101002 101003 102064 121004 berylium copper 121002 berylium copper 518 combo,3aa & 5x20 6.3 mm x 32 mm (3ab / 3ag) size fuse series and holder options fuse holder re-rating: for 25c ambient temperatures, it is recommen ded that fuse holders be operated at no more than 60% of the nominal current ra ting established using the controlled test conditions specified by underwriters laboratories. the primary objective of these ul test conditions is to specify common test standards necessary for the continued control of manufactured items intended for protection against fire, etc. a copper dummy fuse is inserted in the fuse holder by underwriters laboratories, and then the current is increased until a certain temperature rise occurs. the majority of the heat is produced by the contac t resistance of the fuse holder clips. this value of current is considered to be the rated current of the fuse holder, expressed as 100% of rating. some of the more common, everyday applications may differ from these ul test conditions as follows: fully enclosed fuse holders, high contact resistance, air movement, transient spikes, and changes in connecting cable size (diameter and length). even small variations from the controlled test cond itions can greatly affect the ratings of the fuse holder. for this reason, it is recommended that fuse holders be de-rated by 40% (operated at no more than 60% of the nominal current rating established using the underwriter laboratories test conditions).
4 www.littelfuse.com/fuseholders ?2010 littelfuse, inc. speci?cations are subject to change without notice. series name 1 time lag (slo-blo ? ) medium acting 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 rohs compliant lead free americas europe asia ul ur csa qpl ce vde tuv bsi semko pse k ccc cqc 262/268/269 t 0.002 - 5 125 10,000 -55 c to +125c ttt 272/278 t 0.002 - 5 125 10,000 -55 c to +125c ttt 273/274/279 t 0.002 - 5 125 10,000 -55 c to +85c 303 t 0.5 - 5 125 50 -55 c to +70c tt tt series name 1 time lag (slo-blo ? ) medium acting 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 rohs compliant lead free americas europe asia ul ur csa qpl ce vde tuv bsi semko pse k ccc cqc 370 t 0.4 - 6.3 250 35 - 50 -40c to +85c ttttttt 372 t 0.4 - 6.3 250 35 - 50 t t tttttt t 373 t 0.5 - 10 250 50 tt tt 374 t 0.5 - 10 250 50 tt tt 382 t 1 - 10 250 100 t t tttttt t 383 t 1 - 10 300 50 - 100 ttttt 369 t 1 - 6.3 300 50 -40c to +85c tttt 385 t 0.35 - 1.5 125 50 ttt 391 t 0.125 - 4 65 50 ttt 392 t 0.8 - 6.3 250 25 - 63 t t ttt tt t 395 t 0.05 - 6.3 125 100 ttt 396 t 0.05 - 6.3 125 100 tttt 397 t 0.35 - 1.5 125 50 ttt 398 t 0.125 - 4 65 50 ttt 399 t 0.125 - 4 65 50 ttt 400 t 0.5 - 6.3 250 130 ttttt te5 ? /tr5 ? type fuse series and holder options micro tm /tr3 ? type fuse series and holder options panel mount holders pc board mount holders 570 559 575 cap 560 562 564 565 90 571 575 cap panel mount holders pc board mount holders 282001 front mt.neoprene 281005 vertical silver 282007 front mt.conductive 281007 horizontal silver 282002 rear mt neoprene 281008 vertical tin 282008 rear mt.conductive 281010 horizontal tin 280003 125v indicating 280004 32v indicating

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