s m d ty p e w w w . k e x i n . c o m . c n 1 di o d e s f e a tu r e s g l a s s p a s s i v a t e d c h i p l o w f o r w a r d v o l t a g e d r o p a n d h i g h c u r r e n t c a p a b i l i t y l o w r e v e r s e l e a k a g e c u r r e n t e p o x y m e e t s u l 9 4 v - 0 f l a m m a b i l i t y r a t i n g u l t r a f a s t s w i t c h i n g f o r h i g h e f f i c i e n c y sod-123f unit:mm 0.8 0 . 1 2 . 8 0 . 1 1 . 85 0 . 1 c a t h o d e b a n d t o p v i e w 3 . 7 0 . 1 0 . 65 0.1 1 . 20 ~ 1.35 0 . 20 a b s o l u te m a x i m u m ra ti n g s t a = 2 5 p a r a m e t e r s y m b o l u s 1 a f u s 1 b f u s 1 c f u s 1 d f u s 1 g f u s 1 j f u s 1 k f u s 1 m f u n i t 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 v r r m 5 0 1 0 0 1 5 0 2 0 0 4 0 0 6 0 0 8 0 0 1 0 0 0 r m s v o l t a g e v r m s 3 5 7 0 1 0 5 1 4 0 2 8 0 4 2 0 5 6 0 7 0 0 m a x i m u m d c b l o c k i n g v o l t a g e v d c 5 0 1 0 0 1 5 0 2 0 0 4 0 0 6 0 0 8 0 0 1 0 0 0 a v e r a g e d f o r w a r d c u r r e n t . t l = 1 1 0 i f a v p e a k f o r w a r d s u r g e c u r r e n t @ 8.3ms i f s m 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 r ja / w j u n c t i o n t e m p e r a t u r e t j o p e r a t i n g t e m p e r a t u r e t o p s t o r a g e t e m p e r a t u r e t s t g a 3 0 v 1 3 0 - 6 5 t o 1 7 5 1 5 0 - 6 5 t o 1 7 5 e l e c tr i c a l ch a r a c te r i s ti c s t a = 2 5 s y m b o l t e s t c o n d i t i o n s m i n t y p m a x u n i t u s 1 a f - 1 d f 1 u s 1 g f 1 . 4 u s 1 j f - 1 m f 1 . 7 t a = 2 5 1 0 t a = 1 0 0 1 0 0 u s 1 a f - u s 1 g f 5 0 u s 1 j f ~ u s 1 k f 7 5 u s 1 m f 1 0 0 u s 1 a f - 1 g f 2 0 u s 1 j f - 1 m f 1 7 p a r a m e t e r f o r w a r d v o l t a g e r e v e r s e v o l t a g e l e a k a g e c u r r e n t v n s v f i r i f m = 1 a , t j = 2 5 c r e v e r s e r e c o v e r y t i m e t r r i f = 0 . 5 a , i r = 1 a , i r r = 0 . 2 5 a u a 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 c j v r = 4 v , f = 1 m h z p f m a r k i n g n o . u s 1 a f u s 1 b f u s 1 c f u s 1 d f u s 1 g f u s 1 j f u s 1 k f u s 1 m f m a r k i n g u s 1 a u s 1 b u s 1 c u s 1 d u s 1 g u s 1 j u s 1 k u s 1 m ult r a f ast reco v er y dio d es us 1a f ~ us 1m f
s m d ty p e w w w . k e x i n . c o m . c n 2 di o d e s t y p i c a l ch a r a c te r i s i ti c s a ver ag e forw ar d re ct i fi ed cur re nt - a mpere s v e r s u s l ea d te m pe ratu r e - c f i g u r e 2 f o r w a r d der a t i n g c u r v e 0 1 8 0 3 0 6 0 9 0 1 2 0 0 . 2 . 4 . 6 . 8 1 . 0 1 . 2 1 . 4 s i n g l e p h a s e , ha l f w a v e 6 0 h z r e s i s t i v e o r i n d u c t i v e l o a d a mp s c 1 5 0 1 . 6 1 . 8 2 . 0 2 . 2 2 . 4 instantaneous forward current - amperes v e r s u s i ns tan tan eou s f o rward v olt age - v ol ts f igu r e 1 t y p i c a l f or w a r d c h ara c t e r i s t i c s 4 6 2 0 1 0 a m ps . 8 1 . 0 1 . 2 1 . 4 1 . 6 1 . 8 . 0 1 . 0 2 . 0 4 . 0 6 . 1 . 2 . 4 . 6 1 2 v o l t s f i g u r e 3 j u n c t i o n c a p a c i t a n c e . 1 . 2 1 . 4 2 1 0 2 0 4 0 0 0 1 4 2 0 0 1 2 6 1 0 2 0 1 0 0 j u n c t io n cap a c i t a n c e - p f v e r s u s rev e r s e v o l t a g e - v o l t s p f v o l t s 6 0 4 0 4 4 0 0 1 0 0 0 t j = 2 5 c u s 1 af - 1 gf us1jf - 1 mf u s 1 af - 1 df t j = 2 5 c u s 1 gf u s 1 jf - 1 mf ult r a f ast reco v er y dio d es us 1a f ~ us 1m f
s m d ty p e w w w . k e x i n . c o m . c n 3 dio d e s t r r + 0 . 5 a 0 - 0 . 2 5 -1 . 0 1 cm set time base for 20/100ns/cm 2 5 v d c 1 ? 5 0 ? 1 0 ? o s c ill o s c o p e no t e 1 p ul s e g e n e r a t o r no t e 2 no te s: 1 . r i s e t i m e = 7 n s m a x . i n put im pe dan ce = 1 mego hm, 2 2p f 2 . r i s e t i m e = 1 0n s m a x . s o u r c e i m p e d a n c e = 5 0 o h m s 3. re sist o rs are non -indu ct iv e f igu r e 6 r ev e r s e r e c ov e r y t i m e c h a r a ct e r i st i c a n d t es t cir c u i t dia g r a m 1 1 0 0 4 0 5 1 0 1 5 8 f igu r e 4 p e ak f o rwar d s urge cur re nt p e ak f o rward s u rge cu rrent - a m pere s v e r s u s n u m b e r o f c y c l e s a t 60h z - c yc l e s a m ps c y c l e s 2 6 1 0 2 0 6 0 8 0 4 0 2 0 2 5 3 0 . 0 1 1 1 0 1 0 2 0 4 0 1 0 0 2 0 0 6 0 f i g u r e 5 p eak f orw ar d s urge c urr en t p eak fo rwar d s u rg e cu rr ent - a m per es v e r s u s p u l s e d ur a t i o n - m illi s e c o n d s (m s ) a mp s ms . 0 2 . 0 6 . 1 . 2 . 6 2 6 4 0 0 6 0 0 1 0 0 0 t y p i c a l ch a r a c te r i s i ti c s ult r a f ast reco v er y dio d es us 1a f ~ us 1m f
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