1 ? 2009 littelfuse, inc. specications are subject to change without notice. cartridge fuses 3ab 1000vac / dc high voltage fuse 508 series please refer to www.littelfuse.com/series/508.html for current information. 508 series agency agency file number ampere range recognised file: e10480 315ma - 500ma 315ma - 500ma 508 series lead-free 3ab fuse a 1000vac/vdc rated ceramic fuse with remarkable interrupting rating in a compact 6.3 x 32mm package, which is well suited for circuit protection in high energy applications. t * o b d d p s e b o d f with underwriters laboratories standard ul 248-14 t " w b j m b c m f j o d b s u s j e h f t 1 m v h h b c m f j o u p d m j q t p s shock safe holders t 3 p ) 4 d p n q m j b o u b o e lead-free t 4 v q f s j p s * o u f s s v q u j o h rating of 10,000 amperes t $ p n q b d u g p s n g b d u p s p g 6.3 x 32mm agency approvals features electrical characteristics applications % of ampere rating ampere rating opening time 100% 315ma - 500ma ) p v s t
. j o j n v n 135% ) p v s
. b y j n v n 200% 4 f d p o e t
. b y j n v n amp code amp rating voltage rating interrupting rating nominal cold resistance (mohms) nominal melting i 2 t (a 2 sec.) agency approvals .315 0.315 1000 10ka @ 1000vac 10ka @ 1000vdc 9200 0.071 x x .500 0.5 1000 3572 0.259 x x electrical characteristic used as supplementary protection in appliance or v u j m j [ b u j p o f r v j q n f o u u p q s p w j e f j o e j w j e v b m q s p u f d u j p o g p s components or internal circuits. description , " ! 7 b d e d b m t p d 6 3 v t b q q s p w f e " e e t v g ? y i w & y b n q m f . 9 1 revised: august 23, 2010
introduction to circuit protection introduction to circuit protection transientology 2 ? 2009 littelfuse, inc. specications are subject to change without notice. cartridge fuses 3ab 1000vac/dc high voltage fuse 508 series please refer to www.littelfuse.com/series/508.html for current information. product characteristics dimensions materials # p e z $ f s b n j d $ b q / j d l f m o q m b u f e c s b t t terminal strength . * - 4 5 % (
. f u i p e "
5 f t u $ p o e j u j p o " solderability / " product marking $ b q # s b o e m p h p
d v s s f o u b o e w p m u b h f ratings $ b q 4 f s j f t b o e b h f o d z b q q s p w b m n b s l t operating temperature: o ? $ u p ? $ thermal shock: . * - 4 5 % (
. f u i p e (
5 f t u $ p o e j u j p o # $ z d m f t ? $ u p ? $
vibration . * - 4 5 % (
. f u i p e " humidity . * - 4 5 % (
. f u i p e #
5 f t u $ p o e j u j p o " ) j h i s f m b u j w f i v n j e j u z
b o e f m f w b u f e u f n q ? $
g p s i p v s t salt spray . * - 4 5 % (
. f u i p e &
5 f t u $ p o e j u j p o # packaging option packaging specication quantity quantity & packaging code reel size 508 series bulk / " 1000 . 9 / " packaging ? 6.3 32 part numbering system 0508 m x p xxxx lead-free packaging code quantity code current rating code series x = filler m = 1000 refer to amp code column of electrical characteristics table average time current curves temperature rerating curve 0.001 0.01 0.1 1 10 100 1000 10000 0.01 0.1 1 10 100 time (seconds) amps 508.315 508.500
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