s m d ty p e w w w . k e x i n . c o m . c n 1 d i o d e s a bs olut e max imum r at ings ta = 25 p ar am eter s y m bol s1afh uni t repeti ti v e p eak r ev er s e v ol tage v r r m 50 100 200 400 600 800 1000 s ur ge p eak r ev er s e v ol tage v r s m 35 70 140 280 420 560 700 m ax i m um dc b l oc k i ng v ol tage v d c 50 100 200 400 600 800 1000 f or w ar d v ol tage @i f =1a v f av er aged forwar d c ur r ent. @ ta =65 i fa v p eak for w ar d s ur ge c ur r ent i fs m m ax i m um dc rev er s e cur r ent t a= 25 t a= 125 t y pi c al j unc ti on capac i tanc e * 1 cj pf thermal resistance junction to ambient * 2 r ja /w j unc ti on tem per atur e t j s tor age tem per atur e t s tg 150 - 55 to 150 a 5 100 4 180 a i r v 1.1 1 25 * 1 m eas ur ed at 1 m hz and appl i ed r ev er s e v ol tage of 4 v d.c * 2 t her m al r es i s tanc e fr om j unc ti on to am bi ent at 0.375" ( 9.5 m m ) l ead l ength, p .c.b . m ounted mar k ing no . m ar k i ng a 1 a 2 a 3 a 4 a 5 a 6 a 7 s ur fac e m ount g ener al p ur pos e s i l i c on rec ti fi er s rev er s e v ol tage - 50 to 1000 v f or w ar d cur r ent: 1 a feat ur es s i m p l i f i e d o u t l i n e s o d - 1 2 3 fh w e i g h t 1 7 . 6 m g 0 . 0 0 0 6 2 o z p i n 1 2 d e s c r i p t i o n c a t h o d e a n o d e 1 2 a 7 rect if ier dio d es s 1a f h~ s 1m f h s1bfh s1dfh S1GFH s1jfh s1kfh s1mfh s1afh s1bfh s1dfh S1GFH s1jfh s1kfh s1mfh
s m d ty p e w w w . kexin . com . c n 2 diod e s ty pic al c har ac t er is it ic s 0 . 1 0 . 6 0 . 8 0 . 9 1 . 0 1 . 1 f i g . 3 t y p i c a l f o r w a r d c h a r a c t e r i s t i c i n s t a n e o u s f o r w a r d c u r r e n t ( a ) i n s t a n e o u s f o r w a r d vo l t a g e ( v ) 0 . 7 1 . 0 t = 2 5 j c t = 1 5 0 j c t = 1 0 0 j c 0 . 2 0 . 5 f i g . 2 t y p i c a l i n s t a n e o u s r e v e r s e c h a r a c t e r i s t i c s i n s t a n e o u s c u r r e n t ( a ) r e v e r s e 2 0 0 4 0 0 6 0 0 8 0 0 0 0 . 0 1 0 . 1 1 . 0 1 0 i n s t a n e o u s r e v e r s e vo l t a g e ( v ) 1 0 0 t = 2 5 j c t = 5 0 j c t = 7 5 j c t = 1 0 0 j c t = 1 2 5 j c t = 1 5 0 j c 2 4 6 8 1 0 0 1 5 f i g . 4 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 0 j u n c t i o n c a p a c i t a n c e ( p f ) r e v e r s e vo l t a g e ( v ) 5 1 0 2 0 2 5 3 0 3 5 4 0 1 2 0 . 2 0 . 4 0 . 6 0 . 8 1 . 0 1 . 2 0 . 0 2 5 5 0 7 5 1 0 0 1 2 5 1 5 0 1 7 5 f i g . 1 f o r w a r d c u r r e n t d e r a t i n g c u r v e a v e r a g e f o r w a r d c u r r e n t ( a ) a m b i e n t t e m p e r a t u r e ( c ) s i n g l e p h a s e h a 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 rect if ier dio d es s 1a f h~ s 1m f h
s m d ty p e w w w . ke x in . com . c n 3 diod e s ty pic al a pplic at ion 1 . 1 ( 4 3 ) 2 . 0 ( 7 9 ) 1 . 1 ( 4 3 ) m m ( m i l ) u n i t 1 . 8 ( 7 1 ) 0 . 8 ( 3 2 ) 0 . 8 ( 3 2 ) 1 . 1 ( 4 3 ) p l a s t i c s u r f a c e m o u n t e d p a c k a g e ; 2 l e a d s d e a a h e c a l l r o u n d v a m e u n i t m m 1 . 0 8 0 . 1 6 2 . 9 1 . 8 3 . 8 0 . 9 5 0 . 1 4 2 . 6 1 . 5 3 . 5 5 m a x m i n m i l m a x m i n 4 2 . 5 3 7 . 4 6 . 3 5 . 5 1 1 4 1 0 2 7 0 6 0 1 5 0 1 3 8 a c d e h e d e e 1 . 0 0 . 7 3 9 2 8 e d b o t t o m p a d p a d 3 . 3 3 . 0 1 3 0 1 1 8 rect if ier dio d es s 1a f h~ s 1m f h
s m d ty p e w w w . k exi n . co m . c n 4 dio d e s . ty pic al a pplic at ion r e c o m m e n d e d c o n d i t i o n o f f l o w s o l d e r i n g 2 t o 5 m i n m o r e t h a n 1 m i n l e s s t h a n 1 0 s 1 0 0 c 1 2 0 c 2 4 5 c 2 6 5 c t e m p e r a t u r e o f s o l d e r i n g ( c ) p r e l i m i n a r y h e a t i n g s o l d e r i n g c o o l i n g ( i n a i r ) 5 0 1 0 0 1 5 0 2 0 0 2 5 0 3 0 0 0 r e c o m m e n d e d c o n d i t i o n o f r e f l o w s o l d e r i n g t e m p e r a t u r e o f s o l d e r i n g ( c ) pre heating rate 1 to 5c / s p r e l i m i n a r y h e a t i n g 1 3 0 t o 1 7 0 c , 5 0 t o 1 2 0 s s o l d e r i n g 2 3 0 c 2 0 t o 3 0 s c o o l i n g m o r e t h a n 6 0 s r e f l o w h e a t i n g r a t e 1 t o 5 c / s p e a k t e m p e r a t u r e 2 4 5 t o 2 6 0 c , 1 0 s m a x . 5 0 1 0 0 1 5 0 2 0 0 2 5 0 3 0 0 0 2 t i m e s m a x . r e c o m m e n d e d p e a k t e m p e r a t u r e i s o v e r 2 4 5 c . i f p e a k t e m p e r a t u r e i s b e l o w 2 4 5 c , y o u m a y a d j u s t t h e f o l l o w i n g p a r a m e t e r s ; t i m e l e n g t h o f p e a k t e m p e r a t u r e ( l o n g e r ) , t i m e l e n g t h o f s o l d e r i n g ( l o n g e r ) , t h i c k n e s s o f s o l d e r p a s t e ( t h i c k e r ) rect if ier dio d es s 1a f h~ s 1m f h
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