p a g e 1 c h i p s i l i c o n r e c t i f i e r f o r m o s a m s s f m 3 1 - b t h r u s f m 3 8 - b 1 22 2 2 3 4 4 4 5 6 6 7 l i s t l i s t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p a c k a g e o u t l i n e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . f e a t u r e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . m a x i m u m r a t i n g s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . r a t i n g a n d c h a r a c t e r i s t i c c u r v e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p i n n i n g i n f o r m a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . m a r k i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s u g g e s t e d s o l d e r p a d l a y o u t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p a c k i n g i n f o r m a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . r e e l p a c k i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s u g g e s t e d t h e r m a l p r o f i l e s f o r s o l d e r i n g p r o c e s s e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . h i g h r e l i a b i l i t y t e s t c a p a b i l i t i e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . m e c h a n i c a l d a t a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . h t t p : / / w w w. f o r m o s a m s . c o m / t e l : 8 8 6 - 2 - 2 2 6 9 6 6 6 1 fa x : 8 8 6 - 2 - 2 2 6 9 6 1 4 1 d o c u m e n t i d i s s u e d d a t e r e v i s e d d a t e r e v i s i o n p a g e . d s - 1 2 1 4 0 9 2 0 0 8 / 0 2 / 1 0 2 0 1 0 / 0 3 / 1 0 d 7
m e c h a n i c a l d a t a ? ? c a s e : m o l d e d p l a s t i c , ? t e r m i n a l s : s o l d e r p l a t e d , s o l d e r a b l e p e r m i l - s t d - 7 5 0 , m e t h o d 2 0 2 6 ? p o l a r i t y : i n d i c a t e d b y c a t h o d e b a n d ? m o u n t i n g p o s i t i o n : a n y ? w e i g h t : a p p r o x i m a t e d 0 . 0 9 g r a m e p o x y : u l 9 4 - v 0 r a t e d f l a m e r e t a r d a n t d o - 2 1 4 a a / s m b p a c k a g e o u t l i n e p a g e 2 c h i p s i l i c o n r e c t i f i e r f o r m o s a m s f e a t u r e s b a t c h p r o c e s s d e s i g n , e x c e l l e n t p o w e r d i s s i p a t i o n o f f e r s b e t t e r r e v e r s e l e a k a g e c u r r e n t a n d t h e r m a l r e s i s t a n c e . l o w p r o f i l e s u r f a c e m o u n t e d a p p l i c a t i o n i n o r d e r t o o p t i m i z e b o a r d s p a c e . h i g h c u r r e n t c a p a b i l i t y . ? s u p e r f a s t r e c o v e r y t i m e f o r s w i t c h i n g m o d e a p p l i c a t i o n . h i g h s u r g e c u r r e n t c a p a b i l i t y . g l a s s p a s s i v a t e d c h i p j u n c t i o n . l e a d - f r e e p a r t s m e e t r o h s r e q u i r m e n t s . ? s u f f i x " - h " i n d i c a t e s h a l o g e n f r e e p a r t s , e x . s f m 3 1 - b - h . ? ? ? ? ? ? s f m 3 1 - b t h r u s f m 3 8 - b 3 . 0 a s u r f a c e m o u n t s u p e r f a s t r e c t i f i e r s - 5 0 - 6 0 0 v p a r a m e t e r c o n d i t i o n s f o r w a r d r e c t i f i e d c u r r e n t f o r w a r d s u r g e c u r r e n t r e v e r s e c u r r e n t d i o d e j u n c t i o n c a p a c i t a n c e s t o r a g e t e m p e r a t u r e o a m b i e n t t e m p e r a t u r e = 5 0 c 8 . 3 m s s i n g l e h a l f s i n e - w a v e s u p e r i m p o s e d o n r a t e l o a d ( j e d e c m e t h o d e ) f = 1 m h z a n d a p p l i e d 4 v d c r e v e r s e v o l t a g e s y m b o l m i n . t y p . m a x . u n i t i o i f s m i r c j t s t g a a u a o c p f 3 . 0 1 0 0 5 . 0 + 1 7 5 - 6 5 o v = v t = 2 5 c r r r m j o v = v t = 1 2 5 c r r r m j 4 5 1 0 0 s f m 3 1 - b s f m 3 2 - b s f m 3 3 - b 5 0 1 0 0 1 5 0 3 5 7 0 1 0 5 s y m b o l s v r r m ( v ) v r m s v r ( v ) ( v ) * 1 * 2 * 3 v f ( v ) * 4 s f m 3 4 - b s f m 3 5 - b 2 0 0 3 0 0 1 4 0 2 1 0 1 . 7 0 - 5 5 t o + 1 5 0 s f m 3 6 - b s f m 3 7 - b 4 0 0 5 0 0 2 8 0 3 5 0 t r r ( n s ) * 5 3 5 5 0 1 0 0 1 5 0 2 0 0 3 0 0 4 0 0 5 0 0 0 . 9 5 1 . 2 5 s f m 3 8 - b 6 0 0 6 0 0 4 2 0 o ( c ) o p e r a t i n g t e m p e r a t u r e t , j h t t p : / / w w w. f o r m o s a m s . c o m / t e l : 8 8 6 - 2 - 2 2 6 9 6 6 6 1 fa x : 8 8 6 - 2 - 2 2 6 9 6 1 4 1 0 . 2 1 3 ( 5 . 4 ) 0 . 1 9 7 ( 5 . 0 ) 0 . 0 1 6 ( 0 . 4 ) ty p . 0 . 1 4 2 ( 3 . 6 ) 0 . 1 2 6 ( 3 . 2 ) 0 . 0 7 5 ( 1 . 9 ) 0 . 0 6 7 ( 1 . 7 ) 0 . 0 3 2 ( 0 . 8 ) ty p . 0 . 0 3 2 ( 0 . 8 ) ty p . dimensions in inches and (millimeters) smb d o c u m e n t i d i s s u e d d a t e r e v i s e d d a t e r e v i s i o n p a g e . * 1 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 * 2 r m s v o l t a g e * 3 c o n t i n u o u s r e v e r s e v o l t a g e * 4 m a x i m u m f o r w a r d v o l t a g e @ i = 3 . 0 a f * 5 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 1 n o t e 1 . r e v e r s e r e c o v e r y t i m e t e s t c o n d i t i o n , i f = 0 . 5 a , i r = 1 . 0 a , i r r = 0 . 2 5 a d s - 1 2 1 4 0 9 2 0 0 8 / 0 2 / 1 0 2 0 1 0 / 0 3 / 1 0 d 7 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 ( a t t = 2 5 a o c u n l e s s o t h e r w i s e n o t e d )
p a g e 3 .4 .6 .8 1.0 1.2 1.4 .003 .03 .3 3.0 10 rating and characteristic curves (sfm31-b thru sfm38-b) fig.1-typical for w ard characteristics inst ant aneous for w ard current ,(a) for w ard vol t age,(v) pulse width 300us 1% duty cycle (+) (+) 25vdc (approx.) ( ) ( ) pulse genera t or (note 2) oscilliscope (note 1) 1 non-inductive w notes: 1. rise t ime= 7ns max., input impedance= 1 megohm.22pf . 2. rise t ime= 10ns max., source impedance= 50 ohms. +0.5a 0 -0.25a -1.0a | || | | | | | 1cm set time base for 50 / 10ns / cm trr d.u.t . fig.3- test circuit diagram and reverse recover y time characteristics 10 noninductive 50 noninductive w w t =25 c j fig.2-typical for w ard current a verage for w ard current ,(a) 0.6 1.2 1.8 2.4 3.0 3.6 dera ting cur ve ambient tempera ture ( c) 1.6 1.8 SFM35-B~sfm36-b sfm31-b~sfm34-b 0 25 50 75 100 125 150 175 0 fig.4-maximum non-repetitive for w ard surge current 20 0 40 60 80 100 number of cycles a t 60hz 1 10 5 50 100 t =25 c j 8.3ms single half sine w ave jedec method peak for w ard surge current ,(a) sfm37-b~sfm38-b h t t p : / / w w w. f o r m o s a m s . c o m / t e l : 8 8 6 - 2 - 2 2 6 9 6 6 6 1 fa x : 8 8 6 - 2 - 2 2 6 9 6 1 4 1 d o c u m e n t i d i s s u e d d a t e r e v i s e d d a t e r e v i s i o n p a g e . d s - 1 2 1 4 0 9 2 0 0 8 / 0 2 / 1 0 2 0 1 0 / 0 3 / 1 0 d 7 fig.5-typical junction cap acit ance reverse vol t age,(v) junction cap acit ance,(pf) 0 . 1 10 1000 1 . 0 4 . 0 10 100 100 tj = 25 c f = 1 . 0 m hz
p i n n i n g i n f o r m a t i o n 2 1 p i n 1 c a t h o d e p i n 2 a n o d e p i n s i m p l i f i e d o u t l i n e s y m b o l s u g g e s t e d s o l d e r p a d l a y o u t dimensions in inches and (millimeters) p a g e 4 1 2 c h i p s i l i c o n r e c t i f i e r f o r m o s a m s m a r k i n g ty p e n u m b e r m a r k i n g c o d e s f m 3 1 - b s 3 1 s f m 3 2 - b s 3 2 s f m 3 3 - b s 3 3 s f m 3 4 - b s 3 4 s f m 3 5 - b s 3 5 s f m 3 6 - b s 3 6 s f m 3 7 - b s 3 7 s f m 3 8 - b s 3 8 h t t p : / / w w w. f o r m o s a m s . c o m / t e l : 8 8 6 - 2 - 2 2 6 9 6 6 6 1 fa x : 8 8 6 - 2 - 2 2 6 9 6 1 4 1 s f m 3 1 - b t h r u s f m 3 8 - b b 0 . 0 5 9 ( 1 . 5 0 ) a 0 . 1 4 2 ( 3 . 6 0 ) c 0 . 1 1 8 ( 3 . 0 0 ) p a c k a g e s m b a c b d o c u m e n t i d i s s u e d d a t e r e v i s e d d a t e r e v i s i o n p a g e . d s - 1 2 1 4 0 9 2 0 0 8 / 0 2 / 1 0 2 0 1 0 / 0 3 / 1 0 d 7
p a c k i n g i n f o r m a t i o n p 0 p 1 e b d f w p a d d 1 d 2 w 1 c t p a g e 5 c h i p s i l i c o n r e c t i f i e r f o r m o s a m s h t t p : / / w w w. f o r m o s a m s . c o m / t e l : 8 8 6 - 2 - 2 2 6 9 6 6 6 1 fa x : 8 8 6 - 2 - 2 2 6 9 6 1 4 1 s f m 3 1 - b t h r u s f m 3 8 - b item t olerance smb carrier width carrier length carrier depth sprocket hole 13" reel outside diameter 7" reel outside diameter 13" reel inner diameter 7" reel inner diameter feed hole diameter sprocket hole position punch hole position punch hole pitch sprocket hole pitch embossment center reel width overall tape thickness t ape width p 0 p 1 e b c d f t w p a d d d 1 d 1 d 2 w 1 symbol 0.1 0.1 0.1 min min 0.5 0.1 0.3 1.0 0.1 0.1 0.1 0.1 0.1 0.1 2.0 2.0 unit:mm 1.50 330.00 178.00 50.00 62.00 13.00 1.75 5.50 8.00 4.00 2.00 0.23 12.00 18.00 n o t e : d e v i c e s a r e p a c k e d i n a c c o r d a n c e w i t h e i a s t a n d a r r s - 4 8 1 - a a n d s p e c i f i c a t i o n s l i s t e d a b o v e . 3 . 8 1 5 . 7 4 2 . 2 4 d o c u m e n t i d i s s u e d d a t e r e v i s e d d a t e r e v i s i o n p a g e . d s - 1 2 1 4 0 9 2 0 0 8 / 0 2 / 1 0 2 0 1 0 / 0 3 / 1 0 d 7
p a g e 6 c h i p s i l i c o n r e c t i f i e r f o r m o s a m s h t t p : / / w w w. f o r m o s a m s . c o m / t e l : 8 8 6 - 2 - 2 2 6 9 6 6 6 1 fa x : 8 8 6 - 2 - 2 2 6 9 6 1 4 1 s f m 3 1 - b t h r u s f m 3 8 - b r e e l p a c k i n g s m b 4 , 0 0 0 8 . 0 8 , 0 0 0 3 3 7 * 3 3 7 * 3 7 3 3 0 3 5 0 * 3 3 0 * 3 6 0 6 4 , 0 0 0 1 6 . 9 p a c k a g e r e e l s i z e r e e l c o m p o n e n t s p a c i n g b o x i n n e r b o x r e e l d i a , c a r t o n s i z e c a r t o n a p p r o x . g r o s s w e i g h t ( k g ) ( p c s ) ( m / m ) ( m / m ) ( m / m ) ( p c s ) ( m / m ) ( p c s ) 1 3 " d o c u m e n t i d i s s u e d d a t e r e v i s e d d a t e r e v i s i o n p a g e . p r o f i l e f e a t u r e s o l d e r i n g c o n d i t i o n a v e r a g e r a m p - u p r a t e ( t l t o t p ) < 3 / s e c p r e h e a t o - t e m p e r a t u r e m i n ( t s m i n ) 1 5 0 c o - t e m p e r a t u r e m a x ( t s m a x ) 2 0 0 c - t i m e ( m i n t o m a x ) ( t s ) 6 0 ~ 1 2 0 s e c t s m a x t o t l o - r a m p - u p r a t e < 3 c / s e c t i m e m a i n t a i n e d a b o v e : o - t e m p e r a t u r e ( t l ) 2 1 7 c - t i m e ( t l ) 6 0 ~ 2 6 0 s e c o o p e a k t e m p e r a t u r e ( t p ) 2 5 5 c - 0 / + 5 c o t i m e w i t h i n 5 c o f a c t u a l p e a k t e m p e r a t u r e ( t p ) o r a m p - d o w n r a t e < 6 c / s e c o t i m e 2 5 c t o p e a k t e m p e r a t u r e < 6 m i n u t e s o c 3 . r e f l o w s o l d e r i n g 1 0 ~ 3 0 s e c 1 . s t o r a g e e n v i r o n m e n t : t e m p e r a t u r e = 5 ~ 4 0 h u m i d i t y = 5 5 % 2 5 % 2 . r e f l o w s o l d e r i n g o f s u r f a c e - m o u n t d e v i c e s o o c c s u g g e s t e d t h e r m a l p r o f i l e s f o r s o l d e r i n g p r o c e s s e s c r i t i c a l z o n e t l t o t p t l t s m a x t s m i n r a m p - u p t p t s p r e h e a t o t 2 5 c t o p e a k t i m e 2 5 t l t p r a m p - d o w n t e m p e r a t u r e d s - 1 2 1 4 0 9 2 0 0 8 / 0 2 / 1 0 2 0 1 0 / 0 3 / 1 0 d 7
p a g e 7 c h i p s i l i c o n r e c t i f i e r f o r m o s a m s h t t p : / / w w w. f o r m o s a m s . c o m / t e l : 8 8 6 - 2 - 2 2 6 9 6 6 6 1 fa x : 8 8 6 - 2 - 2 2 6 9 6 1 4 1 s f m 3 1 - b t h r u s f m 3 8 - b d o c u m e n t i d i s s u e d d a t e r e v i s e d d a t e r e v i s i o n p a g e . d s - 1 2 1 4 0 9 2 0 0 8 / 0 2 / 1 0 2 0 1 0 / 0 3 / 1 0 d 7 1 . s o l d e r r e s i s t a n c e 2 . s o l d e r a b i l i t y 3 . h i g h t e m p e r a t u r e r e v e r s e b i a s 4 . f o r w a r d o p e r a t i o n l i f e 5 . i n t e r m i t t e n t o p e r a t i o n l i f e 6 . p r e s s u r e c o o k e r 7 . t e m p e r a t u r e c y c l i n g 8 . t h e r m a l s h o c k 9 . f o r w a r d s u r g e 1 0 . h u m i d i t y 1 1 . h i g h t e m p e r a t u r e s t o r a g e l i f e a t 2 6 0 5 f o r 1 0 2 s e c . i m m e r s e b o d y i n t o s o l d e r 1 / 1 6 " 1 / 3 2 " o a t 2 4 5 5 c f o r 5 s e c . o v = 8 0 % r a t e a t t = 1 5 0 c f o r 1 6 8 h r s . r j o r a t e d a v e r a g e r e c t i f i e r c u r r e n t a t t = 2 5 c f o r 5 0 0 h r s . a o t = 2 5 c , i = i a f o o n s t a t e : p o w e r o n f o r 5 m i n . o f f s t a t e : p o w e r o f f f o r 5 m i n . o n a n d o f f f o r 5 0 0 c y c l e s . o 1 5 p a t t = 1 2 1 c f o r 4 h r s . s i g a o o - 5 5 c t o + 1 2 5 c d w e l l e d f o r 3 0 m i n . a n d t r a n s f e r r e d f o r 5 m i n . t o t a l 1 0 c y c l e s . o o 0 c f o r 5 m i n . r i s e t o 1 0 0 c f o r 5 m i n . t o t a l 1 0 c y c l e s . 8 . 3 m s s i n g l e h a l f s i n e - w a v e s u p e r i m p o s e d o n r a t e d l o a d , o n e s u r g e . o a t t = 8 5 c , r h = 8 5 % f o r 1 0 0 0 h r s . a o a t 1 7 5 c f o r 1 0 0 0 h r s . o c m i l - s t d - 7 5 0 d m e t h o d - 2 0 3 1 m i l - s t d - 2 0 2 f m e t h o d - 2 0 8 m i l - s t d - 7 5 0 d m e t h o d - 1 0 3 8 m i l - s t d - 7 5 0 d m e t h o d - 1 0 2 7 m i l - s t d - 7 5 0 d m e t h o d - 1 0 3 6 j e s d 2 2 - a 1 0 2 m i l - s t d - 7 5 0 d m e t h o d - 1 0 5 1 m i l - s t d - 7 5 0 d m e t h o d - 1 0 5 6 m i l - s t d - 7 5 0 d m e t h o d - 4 0 6 6 - 2 m i l - s t d - 7 5 0 d m e t h o d - 1 0 2 1 m i l - s t d - 7 5 0 d m e t h o d - 1 0 3 1 i t e m t e s t c o n d i t i o n s r e f e r e n c e h i g h r e l i a b i l i t y t e s t c a p a b i l i t i e s
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