ds31035 rev. 3 - 2 1 of 3 MMBD4448DW www.diodes.co m ? diodes incorporated mmbd4448d w surface mo unt swit ching di ode case: sot-363, molded p lastic case ma terial - ul flammability rating classification 94v-0 moisture sensitivity: level 1 per j-std-020a terminals: sol derable per mil-std-202, method 208 polarity: s ee diagram marking: ka3 (s ee page 3) weight: 0. 006 grams (approx.) mechanical data features characteristic symbol value unit non-repetitive peak revers e voltage v rm 100 v peak repetitive revers e voltage working peak revers e voltage dc blocking voltage v rrm v rwm v r 75 v rms reverse voltage v r (rms) 53 v forward continuous cur rent (note 1) i fm 500 ma average rectified output curr ent (note 1) i o 250 ma non-repetitive peak forward surge curr ent @ t < 1 m s @ t < 1s i fsm 4 2 a power dissipation (note 1) p d 200 mw thermal resistance j unction to ambient air (note 1) r q ja 625 c /w operating and storage temperature range t j , t stg -65 to +150 c maximum ratings @ t a = 25c unless otherwise s pecified characteristic symbol min max unit test condition reverse break down voltage (note 2) v (br)r 75 ? v i r = 10 m a forward voltage (note 2) v f 0.62 ? ? ? 0.720 0.855 1.0 1.25 v i f = 5.0ma i f = 10ma i f = 50ma i f = 150ma reverse cur rent (note 2) i r ? 2.5 50 30 25 m a m a m a na v r = 75v v r = 75v, t j = 150c v r = 25v, t j = 150c v r = 20v total capacitance c t ? 4.0 pf v r = 0, f = 1.0mhz reverse rec overy t ime t rr ? 4.0 ns i f = i r = 10ma, i rr = 0.1 x i r , r l = 100 w electri cal character isti cs @ t a = 25c unless otherwise s pecified fast switching s peed surface mount p ackage ideally suited f or automat ic insertion for general purpose switching appl ications high conductance ultra miniature p ackage a m j l d b c h k g f c 1 n c a 2 a 1 c 2 n c k a 3 t c u d o r p w e n notes: 1. device mounted on fr-4 pcb, 1 inch x 0.85 inch x 0.062 inch; pad layout as shown on diodes inc. s uggested pad layout document ap02001, which can be found on our website at http :// www .diodes.com/ datasheets /ap02001. pdf . 2. short duration test pulse used to minimize self-heating. top view sot-363 dim min max a 0.10 0.30 b 1.15 1.35 c 2.00 2.20 d 0.65 nominal f 0.30 0.40 h 1.80 2.20 j ? 0.10 k 0.90 1.00 l 0.25 0.40 m 0.10 0.25 a 0 8 all dimensions in m m
ds31035 rev. 3 - 2 2 of 3 MMBD4448DW www.diodes.co m t c u d o r p w e n 1 0 1 0 0 1 0 0 0 1 0 .1 0 1 .6 1 .2 0 .4 0 .8 i , i n s t a n t a n e o u s f o r w a r d c u r r e n t ( m a ) f v , in s t a n t a n e o u s f o rw a r d v o l t a g e ( v ) f f ig . 1 t yp ic a l f o rw a rd c h a ra ct e ri st ic s t = 1 25 oc a t = -4 0o c a t = 7 5o c a t = 2 5o c a t = 0 oc a 0. 1 1 10 10 0 10 00 10 00 0 0 20 40 60 80 10 0 v , r e v e r s e v o l t a g e ( v ) r f ig . 2 t yp ic al r ev er se c ha ra ct er is tic s i , i n s t a n t a n e o u s r e v e r s e c u r r e n t ( n a ) r t = -4 0o c a t = 2 5o c a t = 7 5o c a t = 1 25 oc a t = 0 oc a 0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 0 1 0 0 2 0 0 p , p o w e r d i s s i p a t i o n ( m w ) d t , a m b ie n t t e m p e r a t u r e ( c ) a f ig . 4 p o w e r d e ra tin g c u rv e , t o tal p a ck a g e 0 0.5 1 2.5 2 1.5 3 0 10 20 30 40 c , t o t a l c a p a c i t a n c e ( p f ) t v , rever se vol t age (v) r fig. 3 t ypical t ot al cap acit ance vs. reverse v olt age f = 1mhz 0 4 6 8 2 10 i , f or w ar d cu rr en t (m a) f fig . 5 r ev er se r ec ov er y t im e v s. fo rw ar d c ur re nt t , r e v e r s e r e c o v e r y t i m e ( n s ) r r 0 0.5 1.0 1.5 2.0 2.5
ds31035 rev. 3 - 2 3 of 3 MMBD4448DW www.diodes.co m t c u d o r p w e n notes: 3. for packaging details, go to our website at http :// www .diodes.com/ datasheets /ap02007. pdf . device packaging shipping MMBD4448DW-7 sot-363 3000/tape & reel orderi ng inform ation (note 3) marking i nformat ion ka3 = product type marking code, ym = date code marking y = year ex: n = 2002 m = month ex: 9 = september sot-363 k a 3 y m month jan feb march apr may jun jul aug sep oct nov dec code 1 2 3 4 5 6 7 8 9 o n d year 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 code l m n p r s t u v w date code key
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