77 ? 2009 littelfuse, inc. specifications are subject to change without notice. surface mount fuses nano 2? > 250v umf > fast-acting > 464 series 464 series please refer to www.littelfuse.com/series/464.html for current information. 464 series 464 series fuse description agency approvals electrical characteristics for series features t ' b t u " d u j o h t - j t u f e u p * & $
6 o j w f s t b m . p e v m b s ' v t f - j o l t 6 . '
7 t 7 " $ 7 p m u b h f s b u j o h t 3 p ) 4 d p n q m j b o u b o e ) b m p h f o ' s f f ps e % of ampere rating opening time i p v s
. j o j n v n n j o v u f t
. b y j n v n t f d
. j o t f d
. b y agency agency file number ampere range ps e nbk30502-e108480a 1a - 6.3a e184655a,b 500ma - 6.3a electrical specifications by item ampere rating (a) amp code max voltage rating (v) interrupting rating nominal cold resistance (ohms) nominal melting i t (a 2 sec) nominal voltage drop (mv) agency approvals ps e b n q f s f t ! 7 " $ y y y y y y y y y y y y y y y y y y y y 5 i f 4 v s g b d f . p v o u / b o p 7 6 . ' q s p e v d u g b n j m z d p n q m j f t x j u i * & $ 1 v c m j d b u j p o * & $ 6 o j w f s t b m . p e v m b s ' v t f - j o l t < 6 . ' > 5 i j t * & $ t u b o e b s e i b t c f f o b d d f q u f e c z 6 - $ 4 " n b l j o h j u u i f ? s t u h m p c b m g v t f t u b o e b s e applications t 1 p x f s t v q q m z t - j h i u j o h t z t u f n t 8 i j u f h p p e t t * o e v t u s j b m f r v j q n f o u t . f e j d b m f r v j q n f o u notes: - l 2 t calculated at 8ms. - resistance is measured at 10% of rated current, 25oc - for information and availability of additional ratings please contact littelfuse revised: september 11, 2009
introduction to circuit protection introduction to circuit protection transientology 78 ? 2009 littelfuse, inc. specifications are subject to change without notice. surface mount fuses 464 series nano 2? > 250v vvumf > fast-acting > 464 series please refer to www.littelfuse.com/series/464.html for current information. average time current curves 100 100 10 1 0.1 0.01 0.001 1 10 1000 0.1 1.00 a 1.25 a 1.60 a 2.00 a 2.50 a 3.15 a time in seconds current in amperes 4.00 a 5.00 a 6.30 a .50 a .80 a reflow condition 1 c o ' s f f b t t f n c m z pre heat - temperature min (t s(min) ) ? $ - temperature max (t s(max) ) ? $ - time (min to max) (t s ) o t f d t average ramp up rate (liquidus temp (t l ) to peak ? $ t f d p o e n b y t s(max) to t l - ramp-up rate ? $ t f d p o e n b y reflow - temperature (t l ) (liquidus) ? $ - temperature (t l ) o t f d p o e t peak temperature (t p ) ? $ time within 5c of actual peak temperature (t p ) o t f d p o e t ramp-down rate ? $ t f d p o e n b y time 25c to peak temperature (t p ) n j o v u f t n b y do not exceed ? $ soldering parameters temperature rerating curve wave soldering parameters ? $ 1 f b l 5 f n q f s b u v s f
t f d p o e t n b y / 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 d p o u j o v p v t p q f s b u j p o 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
79 ? 2009 littelfuse, inc. specifications are subject to change without notice. surface mount fuses nano 2? > 250v umf > fast-acting > 464 series 464 series please refer to www.littelfuse.com/series/464.html for current information. 464 series materials # p e z $ f s b n j d 5 f s n j o b u j p o t 4 j m w f s q m b u f e $ b q t product marking # s b o e
" n q f s f 3 b u j o h
7 p m u b h f 3 b u j o h
6 . ' - p h p operating temperature ? $ u p ? $ moisture sensitivity level - f w f m
+ 4 5 % $ solderability * & $ insulation resistance (after opening) * & $ . p i n n j o ! 7 % $
thermal shock . * - 4 5 %
. f u i p e
5 f t u $ p o e j u j p o #
d z d m f t
? $ ? $ mechanical shock . * - 4 5 %
. f u i p e
5 f t u $ p o e j u j p o " vibration . * - 4 5 %
. f u i p e ) [
moisture resistance . * - 4 5 %
. f u i p e
d z d m f t salt spray . * - 4 5 %
. f u i p e
5 f t u $ p o e j u j p o # i s t
resistance to soldering heat * & $ product characteristics dimensions packaging part numbering system packaging option packaging specification quantity quantity & packaging code n n 5 b q f b o e 3 f f m & * " 3 4 * & $
q b s u
% 3 0464 001. d r series amp code * quantity code packaging code 3 f g f s u p & m f d u s j d b m $ i b s b d u f s j t u j d t u b c m f % q d t 3 5 b q f b o e 3 f f m *example: b n q q s p e v d u j t 02.5 % 3 b n q q s p e v d u t i p x o b c p w f
reflow solder f 2.8 (.11") 12.1 (.475") 4.5 (.177") 6.7 (.264") 6.8 (.264") wave solder 3.5 (.14") ac250v f500mal 6.9 (.27") 5.6 (.22") 5.6 (.22") 4.5 (.177") height end cap top view recommended pad layout
introduction to circuit protection introduction to circuit protection transientology 80 ? 2009 littelfuse, inc. specifications are subject to change without notice.
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