25 ? 2009 littelfuse, inc. specifications are subject to change without notice. surface mount fuses 501 series ceramic fuse > 501 series please refer to www.littelfuse.com/series/501.html for current information. 501 series 501 series C high current 1206 fast-acting fuse description this 100% lead free, rohs compliant and halogen free fuse series has been designed specifically to provide over current protection to circuits that see high working ambient temperatures (up to 150c). the general design ensures excellent temperature stability and performance reliability. in addition to this, the high i 2 t values typical of the littelfuse ceramic fuse family ensure high inrush current withstand capability. agency approvals agency agency file number ampere range e10480 10a - 20a lr29862 10a - 20a features t 0 q f s b u j o h 5 f n q f s b u v s f -55octo +150oc t % f t j h o f e u p q s p w j e f over current protection in high current voltage regulator module (vrm) applications t - f b e ' s f f b o e rohs compliant t 4 v j u b c m f g p s c p u i m f b e f e and lead-free reflow / wave soldering electrical characteristics for series % of ampere rating ampere rating opening time at 25oc 100% 10a ~ 20a 4 hours minimum 350% 10a ~ 20a 5 secs. maximum applications t 7 p m u b h f 3 f h v m b u p s module (vrm) equipment t / p u f c p p l 1 $ t % $ % $ $ p o w f s u f s ampere rating (a) amp code max. voltage rating (v) interrupt rating (dc) 1 nominal resistance (ohms) 2 nominal melting i 2 t (a 2 sec.) 3 nominal voltage drop at rated current (v) 4 nominal power dissipation at rated current (w) agency approvals 10a 010. 24 " ! 7 % $ 0.00427 10.385 0.05679 0.5679 x x 12a 012. 24 0.00321 20.341 0.04891 0.5870 x x 15a 015. 24 0.00250 36.100 0.04605 0.6908 x x 20a 020. 24 0.00200 54.760 0.05936 1.1871 x x electrical specifications by item / p u f t % $ * o u f s s v q u 3 b u j o h u f t u f e b u s b u f e w p m u b h f x j u i u j n f d p o t u b o u n t f d / p n j o b m 3 f t j t u b o d f n f b t v s f e x j u i s b u f e d v s s f o u / p n j o b m . f m u j o h * 2 t measured at 1 msec opening time. for other i 2 t data refer to chart. / p n j o b m 7 p m u b h f % s p q n f b t v s f e b u s b u f e d v s s f o u b g u f s u f n q f s b u v s f i b t t u b c j m j [ f e b o e x j u i g v t f n p v o u f e p o c p b s e x j u i p [ $ v u s b d f % f w j d f t e f t j h o f e u p d b s s z s b u f e d v s s f o u g p s i p v s t n j o j n v n * u j t s f d p n n f o e f e u i b u devices be operated continuously at no more than 80% rated current. see temperature re-rating curvefor additional re-rating information. % f w j d f t e f t j h o f e u p c f n p v o u f e x j u i n b s l j o h d p e f g b d j o h v q revised: june 15, 2009
introduction to circuit protection introduction to circuit protection transientology 26 ? 2009 littelfuse, inc. specifications are subject to change without notice. surface mount fuses 501 series ceramic fuse > 501 series please refer to www.littelfuse.com/series/501.html for current information. average time current curves reflow condition 1 c o ' s f f b t t f n c m z pre heat - temperature min (t s(min) ) 150c - temperature max (t s(max) ) 200c - time (min to max) (t s ) o t f d t average ramp up rate (liquidus temp (t l ) to peak 3c/second max t s(max) to t l - ramp-up rate 5c/second max reflow - temperature (t l ) (liquidus) 217c - temperature (t l ) o t f d p o e t peak temperature (t p ) 260 +0/-5 c time within 5c of actual peak temperature (t p ) o t f d p o e t ramp-down rate 6c/second max time 25c to peak temperature (t p ) 8 minutes max. do not exceed 260c soldering parameters temperature rerating curve 40 60 80 100 120 140 -6 5 -4 5 -2 5 - 5 1 5 3 5 55 7 5 9 5 11 5 13 5 1 55 temperature (c) percent of rating wave soldering 260c, 10 seconds max. & y b n q m f ' p s d p o u j o v p v t p q f s b u j p o b u e f h s f f t d f m t j v t
u i f g v t f t i p v m e c f e f s b u f e b t g p m m p x t i = (0.80)(0.85)i rat = (0.68)i rat / p u f % f s b u j o h e f q j d u f e j o u i j t d v s w f j t j o b e e j u j p o u p u i f t u b o e b s e e f s b u j o h p g g p s continuous operation. time temperature t p t l t s(max) t s(min) 25 t p t l t s time to peak temperature (t 25oc to peak) ramp-down ramp-up preheat critical zone t l to t p
27 ? 2009 littelfuse, inc. specifications are subject to change without notice. surface mount fuses 501 series ceramic fuse > 501 series please refer to www.littelfuse.com/series/501.html for current information. 501 series materials body: advanced ceramic terminations: " h / j 4 o - f b e ' s f f
element cover coating: lead-free glass moisture sensitivity level * 1 $ + & % & $ + 4 5 % $
- f w f m solderability * 1 $ & $ " + & % & $ + 4 5 % $
$ p o e j u j p o # humidity test . * - 4 5 %
. f u i p e #
$ p o e j u j p o t % esd immunity * & $
, 7 % j s f d u resistance to solvents . * - 4 5 %
. f u i p e '
$ p o e j u j p o # product characteristics moisture resistance . * - 4 5 %
. f u i p e ( thermal shock . * - 4 5 %
. f u i p e (
$ p o e j u j p o # mechanical shock . * - 4 5 %
. f u i p e #
condition a vibration . * - 4 5 %
. f u i p e " vibration, high frequency . * - 4 5 %
. f u i p e %
$ p o e j u j p o % dissolution of metallization * 1 $ & $ " + & % & $ + 4 5 % $
$ p o e j u j p o % terminal strength iec 60127-4 dimensions packaging part marking system packaging option packaging specification quantity quantity & packaging code 8mm tape and reel eia-481-1 (iec 286, part 3) 3000 wr part numbering system 0501 020. w r series amp code quantity code packing code w = 3000 pcs 3 3 f f m 1 b d l 20 1.000 [.039] 1.620 + .1829/-.173 [.064 + .0072/-.0068] 3.200 .1778 [0.126 .007] .8179 + .046/-.076 [.0322 + .0018/-.003] termination 0.520 .200 [.020 .008] 1.500 [0.059] 1.800 [0.071] 3.500 [0.138] 1.000 [0.039] amp code marking code 010. 10 012. 12 015. 15 020. 20
introduction to circuit protection introduction to circuit protection transientology 28 ? 2009 littelfuse, inc. specifications are subject to change without notice.
|
