325 ? 2009 littelfuse, inc. specications are subject to change without notice. axial lead & cartridge fuses 322 series 3ab > very fast-acting > 322 series please refer to www.littelfuse.com/series/322.html for current information. 322 series 322/332 series lead-free 3ab, very fast-acting fuse agency approvals features applications agency agency file number ampere range e10480 12a - 30a e10480 1a - 10a ps e nbk080306- jp1021a/b 1a - 10a 1a - 30a electrical characteristics for series the 3ab very fast-acting fuse for protection of silicon controlled rectiers and similar solid-state devices. % of ampere rating ampere rating opening time 100% 1 C 30 4 hours, minimum 250% 1 C 10 .2 second, maximum 12 C 30 1 sec.ond, maximum. amp code ampere rating (a) voltage rating (v) interrupting rating nominal cold resistance (ohms) nominal melting i 2 t (a 2 sec) agency approvals ps e 001. 1 250 100a@250vac 100a@125vdc 200a@72vdc 0.0927 0.100 x x x 1.25 1.25 250 0.0804 0.156 x x x 002. 2 250 0.0416 0.560 x x x 003. 3 250 0.0245 1.890 x x x 004. 4 250 0.0179 3.360 x x x 005. 5 250 0.0128 6.250 x x x 006. 6 250 0.0117 8.208 x x x 007. 7 250 0.0108 10.58 x x x 008. 8 250 0.0088 16.45 x x x 009. 9 250 0.0077 20.66 x x x 010. 10 250 0.0073 24.0 x x x 012. 12 65 200a@65vac 1000a@65vdc 0.0515 60.0 x x 015. 15 65 0.0043 90.0 x x 020. 20 65 0.0034 192.0 x x 025.* 25 65 0.0029 325.0 x x 030.* 30 65 0.0023 540.0 x x electrical characteristic specications by item * ratings from 1a to 10a are available for 332 series * ratings from 12a to 30a are available for 322 series, these ratings are rohs compliant version. t * o b d d p s e b o d f x j u i 6 - standard 248-14 t " w b j m b c m f j o d b s u s j e h f format only t 3 p ) 4 d p n q m j b o u b o e - f b e g s f f 6 t f e b t t v q q m f n f o u b s z q s p u f d u j p o j o b q q m j b o d f p s utilization equipment to provide individual protection for components or internal circuits. ps e description revised: september 9, 2010
introduction to circuit protection introduction to circuit protection transientology 326 ? 2009 littelfuse, inc. specications are subject to change without notice. axial lead & cartridge fuses 322 series 3ab > very fast-acting > 322 series please refer to www.littelfuse.com/series/322.html for current information. average time current curves temperature rerating curve 1000 100 10 1 0.1 0.01 0.1 1 10 100 1000 1/8a 1/4a 3/8a 1/2a 3/4a 1a 2a 3a 4a 5a 6a 7a 8a 10a 12a 15a 20a 25a 30a time in seconds current in amperes product characteristics product characteristics materials body: ceramic cap: nickelCplated brass terminal strength . * - 4 5 % (
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5 f t u condition a solderability 3 f g f s f o d f * & $ 4 f d p o e & e j u j p o 2003-01 annex a product marking cap1: brand logo, current and voltage ratings cap2: series and agency approval marks operating temperature C55oc to +125oc thermal shock . * - 4 5 % (
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5 f t u condition b: (5 cycles -65c to +125c) vibration . * - 4 5 % (
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5 f t u condition a: high rh (95%) and elevated temperature (40c) for 240 hours salt spray . * - 4 5 % (
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327 ? 2009 littelfuse, inc. specications are subject to change without notice. axial lead & cartridge fuses 322 series 3ab > very fast-acting > 322 series please refer to www.littelfuse.com/series/322.html for current information. 322 series 322 000p / 332 000p series 6.35 (.25") 31.75 (1.25") dimensions packaging packaging option packaging specication quantity quantity & packaging code reel size 322series bulk n/a 1000 mx n/a bulk n/a 100 hx n/a 332 series bulk n/a 100 hx n/a bulk n/a 1000 mx n/a part numbering system 0322 m x p xxxx lead-free packaging code quantity code amp code series x = filler m = 1000 refer to amp code column of electrical characteristics table
introduction to circuit protection introduction to circuit protection transientology 328 ? 2009 littelfuse, inc. specications are subject to change without notice.
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