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  1 n 4 1 4 8 d o 3 4 s m a l l s i g n a l s w i t c h i n g d i o d e s f e a t u r e s m e c h a n i c a l d a t a s i l i c o n e p i t a x i a l p l a n a r d i o d e f a s t s w i t c h i n g d i o d e s 5 0 0 m w p o w e r d i s s i p a t i o n t h i s d i o d e i s a l s o a v a i l a b l e i n t h e m i n i - m e l f c a s e w i t h t h e t y p e d e s i g n a t i o n l l 4 1 4 8 c a s e : d o - 3 5 g l a s s c a s e p o l a r i t y : c o l o r b a n d d e n o t e s c a t h o d e e n d w e i g h t : a p p r o x . 0 . 1 3 g r a m m a x i m u m r a t i n g s a n d 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 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 ( r a t i n g s a t 2 5 ? a m b i e n t t e m p e r a t u r e u n l e s s o t h e r w i s e s p e c i f i e d ) ( r a t i n g s a t 2 5 ? a m b i e n t t e m p e r a t u r e u n l e s s o t h e r w i s e s p e c i f i e d ) s y m b o l v a l u e u n i t s a v e r a g e r e c t i f i e d c u r r e n t , h a l f w a v e r e c t i f i c a t i o n w i t h r e s i s t i v e l o a d a t t a = 2 5 ? a n d f ?? 5 0 h z m a 1 5 0 1 ) s u r g e f o r w a r d c u r r e n t a t t < 1 s a n d t j = 2 5 ? ? - 6 5 t o + 1 7 5 s t o r a g e t e m p e r a t u r e r a n g e ? r e v e r s e v o l t a g e v o l t s 7 5 v r i a v i f s m 5 0 0 t s t g j u n c t i o n t e m p e r a t u r e t j 1 7 5 m a 1 ) v a i l d p r o v i d e d t h a t l e a d s a t a d i s t a n c e o f 8 m m f r o m c a s e a r e k e p t a t a m b i e n t t e m p e r a t u r e ( d o - 3 5 ) p e a k r e v e r s e v o l t a g e v o l t s 1 0 0 v r m p o w e r d i s s i p a t i o n a t t a = 2 5 ? m w 5 0 0 1 ) p t o t s y m b o l s u n i t s l e a k a g e c u r r e n t a t v r = 2 0 v a t v r = 7 5 v a t v r = 2 0 v , t j = 1 5 0 ? n a j u n c t i o n c a p a c i t a n c e a t v r = v f = 0 v i r i r i r c j m i n . t h e r m a l r e s i s t a n c e , j u n c t i o n t o a m b i e n t t y p . m a x . 2 5  5  5 0 4 3 5 0 1 ) k / w f o r w a r d v o l t a g e v o l t s 1 v f r j a p f r e v e r s e r e c o v e r y t i m e f r o m i f = 1 0 m a t o i r = 1 m a , v r = 6 v , r l = 1 0 0 ? 4 n s t r r 1 ) v a i l d p r o v i d e d t h a t l e a d s a t a d i s t a n c e o f 8 m m f r o m c a s e a r e k e p t a t a m b i e n t t e m p e r a t u r e ( d o - 3 5 ) v o l t a g e r i s e w h e n s w i t c h i n g o n t e s t e d w i t h 5 0 m a p u l s e t p = 0 . 1 s , r i s e t i m e < 3 0 s , f p = 5 t o 1 0 0 k h z v o l t s 2 . 5 v f r r e c t i f i c a t i o n e f f i c i e n c y a t f = 1 0 0 m h z , v r f = 2 v 0 . 4 5 ? d i m e n s i o n s i n i n c h e s a n d ( m i l l i m e t e r s ) d o - 3 4 ( g l a s s ) 1 . 0 2 ( 2 6 . 0 ) m i n . 1 . 0 2 ( 2 6 . 0 ) m i n . 0 . 1 0 6 ( 2 . 9 ) m a x . 0 . 0 1 7 ( 0 . 4 2 ) m a x . d i a . 0 . 7 9 ( 2 . 0 ) m a x . d i a . a a
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 f i g . 2 - d y n a m i c f o r w a r d r e s i s t a n c e v e r s u s f o r w a r d c u r r e n t f i g . 3 - a d m i s s i b l e p o w e r d i s s i p a t i o n v e r s u s a m b i e n t t e m p e r a t u r e f i g . 4 - r e l a t i v e c a p a c i t a n c e v e r s u s v o l t a g e t j = 2 5 ? t j = 1 0 0 ? 1 0 2 v i f v f m a 1 1 0 - 1 1 0 - 2 1 0 2 1 0 3 1 0 i f t j = 2 5 ? f = 1 k h z 1 1 0 - 1 1 0 - 2 1 0 2 1 0 1 0 3 1 1 0 2 1 0 4 1 0 m a 1 0 0 0 2 0 0 ? t a p t o t 0 1 0 0 3 0 0 2 0 0 1 0 0 0 9 0 0 8 0 0 7 0 0 6 0 0 5 0 0 4 0 0 m w t j = 2 5 ? f = 1 m h z 2 0 1 0 v 8 6 4 0 . 7 0 . 8 1 . 0 0 . 9 1 . 1 v r c t o t ( v r ) c t o t ( o v ) r f r a t i n g s a n d c h a r a c t e r i s t i c c u r v e s 1 n 4 1 4 8 ?
f i g . 5 - r e c t i f i c a t i o n e f f i c i e n c y m e a s u r e m e n t c i r c u i t f i g . 6 - l e a k a g e c u r r e n t v e r s u s j u n c t i o n t e m p e r a t u r e f i g . 7 - a d m i s s i b l e r e p e t i t i v e p e a k f o r w a r d c u r r e n t v e r s u s p u l s e d u r a t i o n 1 0 0 0 2 0 0 ? n a 1 0 3 1 1 0 2 1 0 4 1 0 v r = 2 0 v v o 5 k 2 n f v r f = 2 v d . u . t . 6 0 t p 1 1 0 - 1 1 0 - 2 1 0 s 1 0 - 3 1 0 - 5 1 0 - 4 0 . 1 1 1 0 0 1 0 i f r m a v = t p / t t = 1 / f p t p i f r m t n = 0 0 . 1 0 . 5 0 . 2 r a t i n g s a n d c h a r a c t e r i s t i c c u r v e s 1 n 4 1 4 8 ? ?


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