features fast switching speed surface mount package ideally suited for automatic insertion for general purpose switching applications polarity: see diagram marking: ka3 maximum ratings @ 25 o c unless otherwise specified characteristic symbol value unit non-repetitive peak reverse volt. v rm 100 v peak repetitive reverse voltage v rrm working peak reverse voltage v rwm 75 v dc blocking voltage v r rms reverse voltage v r(rms) 53 v forward continuous current(note1) i fm 500 ma average rectified output current io 250 ma non-repetitive peak @ t<=1.0s i fsm 2a forward surge current @ t=1.0us 4 a power dissipation(note 1) pd 350 mw thermal resistance(note 1) r 357 k/w operation/storage temp. range tj, t stg -55 to +150 o c electrical characteristics @ 25 o c unless otherwise specified charateristic symbol min max unit test cond. 0.62 0.72 i f =5.0ma maximum forward v fm ----- 0.855 v i f =10ma voltage drop 1 i f =100ma 1.25 i f =150ma 2.5 ua v r =75v maximum peak i rm ----- 50 ua v r =75v tj=150 o c reverse current 30 ua v r =25v t j =150 o c 25 na v r =20v junction capacitance cj ----- 4 pf v r =0v, f=1.0mhz reverse recovery time t rr ----- 4 ns note : 1. valid provided that terminals are kept at ambient temperature MMBD4448 switching diode 350mw www. mccsemi .com sot-23 suggested solder pad layout dimensions inches mm dim min max min max note a .110 .120 2.80 3.04 b .083 .098 2.10 2.64 c .047 .055 1.20 1.40 d .035 .041 .89 1.03 e .070 .081 1.78 2.05 f .018 .024 .45 .60 g .0005 .0039 .013 .100 h .035 .044 .89 1.12 j .003 .007 .085 .180 k .015 .020 .37 .51 a b c d e f g h j .079 2.000 inches mm .031 .800 .035 .900 .037 .950 .037 .950 2. trr test condition: if=ir=10ma, irr=0.1*ir, r=100 ohm
omp onents 20736 marilla street chatsworth
mcc revision: a 2011 /01/01 tm micro commercial components surface mount 1 of 4 rohs compliant. see ordering information) epoxy meets ul 94 v-0 flammability rating moisture sensitivity level 1 lead free finish/rohs compliant ("p"suffix designates mechanical data
MMBD4448 admissable power dissipation - milliwatts versus ambient temperature - versus reverse voltage - volts instantaneous forward current - amperes versus instantaneous forward voltage - volts figure 1 typical forward characteristics 40 60 200 100 milliamps .4 .6 .8 1.0 1.2 1.4 .1 .2 .4 .6 1 2 4 6 10 20 25
MMBD4448 1 100 4 0 0.4 0.8 1.2 8 figure 5 peak forward surge current peak forward surge current - amperes versus number of cycles at 60hz - cycles amps cycles 2 6 10 20 60 80 40 1.6 2.0 2.4 figure 4 typical reverse characteristics instantaneous reverse leakage current - nanoamperes versus junction temperature -
mcc revision: a 2011 /01/01 tm micro commercial components www. mccsemi .com 4 of 4 device packing part number-tp tape&reel: 3 kpcs/reel ordering information : *** i m p o r t a n t n o t ic e * ** m i c r o c o m m e r c i a l c o m p on e n ts c o r p . r e s e rve s t h e r i g h t t o m a k e c h a n g e s w i t ho u t f u r t h e r no t i c e t o a n y p r o d u c t h e r e i n t o m a k e c o rr e c t i o n s , m o d i f i c a t i o n s , e n h a n c e m e n t s , i m pr o v e m e n t s , o r o t h e r ch a n g e s . m i c r o c o m m e r c i a l c o mp o n e n ts c o r p . d o e s n o t a s s u m e a n y l i a b i l i t y a r i s i n g ou t o f t h e a p p l i c a t i on o r u s e o f a n y p r o d uc t d e sc r i be d h e r e i n ; n e i t h e r d o e s i t c o n v e y a n y li c e n s e un der i t s p a t e n t r i g h t s , n o r t h e r i g h t s o f o t h e r s . t h e u s e r o f pr o d uc t s i n s u c h a p p l i c a t i o n s sh a l l a ss u m e a l l r i s k s o f su c h u s e a n d w ill a g r ee t o h o l d m i c r o c o mm er c i a l c o m p o n e n t s c o r p . a n d a ll t h e c o m p a n i e s w ho s e p r o d u c t s a r e r e p r e s e n t ed o n ou r w e b s i t e , h a r m l e s s a g a i n s t a l l d a m a g e s. * * * l i f e s u p p o r t *** m c c ' s pr o d uc t s a r e n o t a u t h o r iz ed f o r u s e a s c r i t i c a l c o m p o n e n t s i n l i f e s u pp o r t d e v i c e s o r s y s t e m s w i t h ou t t h e e x pre ss wr i tt e n a p p r o v a l o f m i c r o c o mm e r c i a l c o m p o n e n t s c o rp o r a t i o n. * * * c u s t o m e r a w a r e n e ss*** c o un t e r f e i t i n g o f s e m i c o n d u c t o r p a r t s i s a gr o w i n g p r o b l e m i n t h e i n d u s t ry . m i c r o c o mm e r c i a l c o m p o n e n t s ( m cc ) i s t a k i n g s t r o n g m e a su r e s t o p r o t e c t ou r s e l v e s a n d o u r cu s t o m e r s f r o m t h e pr o l i f e r a t i on o f c o u n t e r f e i t p a r t s . m c c s t r o n g l y e nc o u r a g e s c u s t o m e r s t o p u r c h a s e m c c p a r t s e i t h e r d i r e c t l y f r o m m c c o r f r o m a u t ho r i z e d m c c d i s t r i b u t o r s w ho a r e l i s t e d b y c o u n t r y o n o u r w e b p a g e c i t ed below . p r o d uc t s c us t o m e r s b u y e i t h e r f r o m m c c d i r e c t l y o r f r o m a u t ho r i z e d m cc d i s t r i b u t o r s a r e g e n u i n e p a r t s , h a v e f ul l t r a c e a b il i t y , m e e t m c c ' s q u a l i t y s t a n d a r d s f o r h a n d li n g a n d s t o r a g e . m c c wi l l n o t p r o v i d e a n y w a rr a n ty c o v e r a g e o r o t h e r a s s i s t a n c e f o r p a r ts b o u g h t f r o m u n a u t h o r i z e d s o u r c e s. m c c i s c o m m i t t e d t o c o m b a t t h i s g l o b a l pr o b l e m a n d e n c ou r a g e o u r c u s t o m e r s t o d o t h e i r p a r t in s t o p p i n g t h i s p r a c t i c e b y b u y i n g d i r e c t o r f r o m a u t h o r i z ed d i s t r i b u t o r s.
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