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| 1 ? 2009 littelfuse, inc. speci?cations are subject to change without notice. axial lead & 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 - 1a 315ma - 1a 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. u ? > v v ? ` > ? v i with underwriters laboratories standard ul 248-14 u ? > ? ? > l ? i ? ? v > ? ` } i and axial lead u , ? - v ? ? ? ? ? > ? > ? ` lead-free u - ? ? i ? ? ? i ? ? ? ? } rating of 10,000 amperes u ? ? ? > v v ? ? v > v ? ? v 6.3 x 32mm agency approvals features electrical characteristics applications % of ampere rating ampere rating opening time 100% 315ma - 1a { ? ? ? ] ? ? ? ? ? ? 135% ? ? ] > y ? ? ? ? 200% ? - i v ? ? ` ? ] > y ? ? ? ? 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 001 1 1000 1580 0.449 x x electrical characteristic used as supplementary protection in appliance or ? ? ? ? a > ? ? ? i ? ? ? ? i ? ? ? ? ? ? ` i ? ? ` ? ? ? ` ? > ? ? ? i v ? ? ? v ? components or internal circuits. description i ? j ? ? 6 > v ` v > ? ? ? v 1 , ? ? > ? ? ? ? i ` ` ` ? ? v w y o ? y > ? ? ? i \ ? x ? n ? x 8 * revised: november 3, 2011 introduction to circuit protection introduction to circuit protection transientology 2 ? 2009 littelfuse, inc. speci?cations are subject to change without notice. axial lead & cartridge fuses 3ab 1000vac/dc high voltage fuse 508 series please refer to www.littelfuse.com/series/508.html for current information. product characteristics materials ? ` t \ i > ? ? v > ? \ ? v ? i ? q ? ? > i ` l > ? ? i > ` ? \ / ? ? ? ? ? > i ` ? ? ? i terminal strength ? - / ? ? ] i ? ? ` ] / i ? ? ? ` ? ? ? ? solderability , i v i i ? v i ? ? - i v ? ? ` ` ? ? ? ? 2003-01 annex a product marking > ? \ > ? ` ? ? } ? ] v ? i ? > ? ` ? ? ? > } i ratings > ? \ - i ? i ? > ? ` > } i ? v t > ? ? ? ? > ? ? > ? ? operating temperature: q x x ? x thermal shock: ? - / ? ? ] i ? ? ` ? ? ] / i ? ? ? ` ? ? ? ? - x t v ? i ? ? x ? 3 x ? vibration ? - / ? ? ] i ? ? ` ? humidity ? - / ? ? ] i ? ? ` ? ? ] / i ? ? ? ` ? ? ? ? \ ? } ? i ? > ? ? i ? ? ? ? ` ? t - ? x ? > ? ` i ? i ? > i ` i ? ? - { ? ? v ? { ? ? ? ? ? salt spray ? - / ? ? ] i ? ? ` ? ] / i ? ? ? ` ? ? ? ? average time current curves temperature rerating curve soldering parameters - wave soldering dwell time 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 time (seconds) temperature (c) - measured on bottom side of board cooling time preheat time wave parameter lead-free recommendation preheat: - i ? i ? ` ? ? ? ? ? y v ? ? > ? ? ? / i ? ? i > ? i ? - / t ? ? v > ? ? ` ? ? t , i v ? ? ? i ? ` > ? ? ? ? / i ? ? i > ? i ? ? ? ? ? ? \ 100 / i ? ? i > ? i > y ? ? ? ? \ 150 * i ? i > / ? ? i \ 60-180 seconds solder pot temperature: 260 > y ? ? ? ? solder dwell time: 2-5 seconds recommended hand-solder parameters: - ? ? ` i ? ? / i ? ? i > ? i \ ? x ? c 3 ? x c i > ? ? } / ? ? i \ x ? i v ? ? ` ? ? > y note: these devices are not recommended for ir or convection re?ow process. recommended process parameters: 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 508001 3 ? 2009 littelfuse, inc. speci?cations are subject to change without notice. axial lead & cartridge fuses 3ab 1000vac / dc high voltage fuse 508 series please refer to www.littelfuse.com/series/508.html for current information. 508 series dimensions packaging option packaging speci?cation quantity quantity & packaging code reel size 508 series bulk 1000 8 bulk 1000 8 packaging ? 6.3 32 32.72 (1.288") 6.985 (.275") 0.813 (.032") 39.68 (1.56") typ. standard length 12.70 (0.50) typ short lead option axial lead material: tin coated copper part numbering system 0508 m x e xxxx option codes p lead-free packaging code quantity code a m p code series x = filler blank : cartidage type fuse e : axial lead fuse m = 1000 refer to a m p code colu m n of electrical characteristics table |
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