BD4148CPT c h e n m k o e n t e r p r i s e c o . , l t d s u r f a c e m o u n t s w i t c h i n g d i o d e v o l t a g e 7 5 v o l t s c u r r e n t 0 .15 ampere a p p l i c a t i o n f e a t u r e * s m a b d s u r f a c e m o u n t i n g t y p e . (sot-23) * h i g h s p e e d . ( t r r = 4 . 0 n s e c t y p . ) * s u i t a b l e f o r h i g h p a c k i n g d e n s i t y . c o n s t r u c t i o n * s i l i c o n e p i t a x i a l p l a n a r * u l t r a h i g h s p e e d s w i t c h i n g e l e c t r i c a l c h a r a c t e r i s t i c s ( a t t a = 2 5 o c u n l e s s o t h e r w i s e n o t e d ) n o t e s : 2 0 0 2 - 5 m a x i m u m a v e r a g e r e v e r s e c u r r e n t c h a r a c t e r i s t i c s s y m b o l namps v o l t s m a x i m u m i n s t a n t a n e o u s f o r w a r d v o l t a g e a t i f = 1 0 m a m a x i m u m r a t i n g e s ( a t t a = 2 5 o c u n l e s s o t h e r w i s e n o t e d ) r a t i n g s m a x i m u m n o n - r e p e t i t i v e p e a k r e v e r s e v o l t a g e m a x i m u m w o r k i n g p e a k r e v e r s e v o l t a g e m a x i m u m d c b l o c k i n g v o l t a g e m a x i m u m r e p e t i t i v e p e a k r e v e r s e v o l t a g e m a x i m u m r m s v o l t a g e m a x i m u m a v e r a g e f o r w a r d r e c t i f i e d c u r r e n t p e a k f o r w a r d s u r g e c u r r e n t a t 1 u s e c . t y p i c a l j u n c t i o n c a p a c i t a n c e b e t w e e n t e r m i n a l ( n o t e 1 ) m a x i m u m o p e r a t i n g a n d s t o r a g e t e m p e r a t u r d r a n g e m a x i m u m t h e r m a l r e s i s t a n c e s y m b o l v r m v r w m v d c v r r m v r m s i o c j v f i r t j , t s t g i f s m BD4148CPT BD4148CPT u n i t s 1 0 0 v o l t s v o l t s v o l t s a m p s 7 5 5 3 0.15 4 . 0 3 5 0 - 6 5 t o + 1 5 0 a m p s p f m a x i m u m r e v e r s e r e c o v e r y t i m e ( n o t e 2 ) t r r 4 . 0 n s e c o c / w o c 1 . m e a s u r e d a t 1 . 0 m h z a n d a p p l i e d r e v e r s e v o l t a g e o f 0 v o l t s . 2 . m e a s u r e d a t a p p l i e d f r o w a r d c u r r e n t o f 1 0 m a , r e v e r s e c u r r e n t o f 1 . 0 m a , r e v e r s e v o l t a g e o f 6 . 0 v o l t s a n d r l = 1 0 0 o h m s . 3 . e s d s e n s i t i v e p r o d u c t h a n d l i n g r e q u i r e d . * m a x i m u m t o t a l p o w e r d i s s p a t i o n i s 3 0 0 m w . @ 1 s e c @ 1 . 0 u s e c v r= 75v @tj=25 o c v r= 20v @tj=25 o c 25 50 1 . 0 1 . 0 2 . 0 r j a c i r c u i t uamps sot-23 units (1) (2) (3) marking * 5j- .1 1 9 ( 3.0 4 ) .00 7 ( 0.1 7 7) .00 2 ( 0.0 5 ) .1 10 ( 2.80 ) .10 3 ( 2.6 4 ) .028 ( 0.70 ) .020 ( 0.50 ) .055 ( 1.40 ) .047 ( 1.20 ) .045 ( 1.15 ) .033 ( 0.85 ) .0 86 (2. 2 0) .0 82 ( 2. 1 0 ) .04 1 ( 1.0 5 ) .0 19 ( 0. 50) .01 8 ( 0.3 0 ) .03 3 ( 0.8 5 ) .0 66 ( 1. 7 0 ) (1) (2) (3) dimensions in inches and (millimeters) sot-23
r a t i n g c h a r a c t e r i s t i c c u r v e s ( b d 4 1 4 8cpt ) t a = 1 2 5 o c 7 5 o c 2 5 o c - 2 5 o c f o r w a r d v o l t a g e , ( v ) r e v e r s e v o l t a g e , ( v ) 1 0 u 0 0 . 2 0 . 4 0 . 6 0 . 8 1 . 0 1 . 2 1 . 4 1 0 0 u 1 m 1 0 m 1 0 0 m 1 f o r w a r d c u r r e n t , ( a ) r e v e r s e c u r r e n t , ( a ) 1 n 1 0 n 1 0 0 n 1 u 1 0 u 0 . 1 m 1 m f i g . 2 - r e v e r s e c h a r a c t e r i s t i c s f i g . 1 - f o r w a r d c h a r a c t e r i s t i c s 0 2 0 4 0 6 0 8 0 1 0 0 1 2 0 t a = 1 2 5 o c 7 5 o c 2 5 o c 0 2 4 6 8 1 0 1 2 1 4 0 . 1 0 . 2 0 . 5 1 2 5 1 0 0 2 4 6 0 . 1 1 1 0 0 . 1 0 . 5 1 . 0 0 . 2 2 . 0 5 . 0 p u l s e s i n g l e p u l s e 1 0 . 0 1 0 0 1 0 0 0 1 0 0 0 0 i r = 1 m a v r = 6 v i r r = 1 / 1 0 i r 0 1 0 2 0 3 0 r e v e r s e v o l t a g e , ( v ) j u n c t i o n c a p a c i t a n c e , ( p f ) f i g . 3 - t y p i c a l j u n c t i o n c a p a c i t a n c e f o r w a r d c u r r e n t , ( m a ) f i g . 4 - r e v e r s e r e c o v e r y t i m e c h a r a t e r i s t i c s r e v e r s e r e c o v e r y t i m e , ( n s ) p e a k f o r w a r d s u r g e c u r r e n t , ( a ) p u l s e w i d t h , ( s e c ) f i g . 5 - m a x i m u m n o n - r e p e t i t i v e f o r w a r d s u r g e c u r r e n t p u l s e g e n e r a t o r o u t p u t 5 0 s a m p l i n g o s c i l l o s c o p e 1 0 0 0 . 0 1 f d . u . t . 5 f i g . 6 - r e v e r s e r e c o v e r y t i m e m e a s u r e m e n t c i r c u i t
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