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 0 . 3 7 5 ( 9 . 5 m m ) l e a d l e n g t h a t t = 5 5 c ? a o p e a k f o r w a r d s u r g e c u r r e n t 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 ( j e d e c m e t h o d ) 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 1 . 0 a m a x i m u m d c r e v e r s e c u r r e n t a t r a t e d d c b l o c k i n g v o l t a g e t = 2 5 c t = 1 2 5 c a o a o 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 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 ( n o t e 1 ) t y p i c a l t h e r m a l r e s i s t a n c e ( n o t e 2 ) 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 e r a n g e n o t e s : 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 4 . 0 v o l t s . 2 . t h e r m a l r e s i s t a n c e f r o m j u n c t i o n t o a m b i e n t a t 0 . 3 7 5 ? ( 9 . 5 m m ) l e a d l e n g t h , p . c . b o a r d m o u n t e d . 3 . t e s t c o n d i t i o n s : i = 0 . 5 a , i = 1 . 0 a , i = 0 . 2 5 a . f r r r s y m b o l s u n i t s v r r m v r m s v d c i ( a v ) i fs m v f i r c j t , t j s tg - 6 5 t o + 1 7 5 5 0 2 0 0 5 . 0 1 . 3 3 0 1 . 0 a m p a m p s v o l t s a m p s p f o c / w o c dimensions in inches and (millimeters) v ol t a ge range current 200 to 1000 v olts 1.0 amper e 1 5 4 0 0 4 0 0 2 8 0 6 0 0 6 0 0 4 2 0 i n 4942g 2 0 0 2 0 0 1 4 0 8 0 0 8 0 0 5 6 0 1 0 0 0 1 0 0 0 7 0 0 1 5 0 2 5 0 5 0 0 n s i n 4944g i n 4946g i n 4947g i n 4948g t r r f e a t u r e s m e c h a n i c a l d a t a 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 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 h i g h c u r r e n t s u r g e c a p a b i l i t y l o w l e a k a g e 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 h i g h t e m p e r a t u r e s o l d e r i n g g u a r a n t e e d : 2 6 0 c / 1 0 s e c o n d s / 0 . 3 7 5 ( 9 . 5 m m ) l e a d l e n g t h a t 5 l b s ( 2 , 3 k g ) t e n s i o n t r a n s f e r m o l d e d p l a s t i c u l 9 4 v - 0 r a t e f l a m e r e t a r d a n t 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 p l a t e d a x i a l l e a d , s o l d e r a b l e p e r m i l - s t d - 2 0 2 e m e t h o d 2 0 8 c a n y 0 . 0 1 2 o u n c e , 0 . 3 3 g r a m r a t i n g s a t 2 5 c 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 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 . f o r c a p a c i t i v e l o a d d e r a t e c u r r e n t b y 2 0 % o c a s e : e p o x y : p o l a r i t y : l e a d : m o u n t i n g p o s i t i o n : w e i g h t : o " 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 d c b l o c k i n g v o l t a g e .034(0.9) .028(0.7) dia. 1.0(25.4) min .205(5.2) .165(4.2) .107(2.7) .080(2.0) dia do-41 1.0(25.4) min v o l t s v o l t s v o l t s f a s t r e c o v e r y g l a s s p a s s i v a t e d r e c t i f i e r r j a 1n4942-4948 http:// www.wej.cn e-mail:wej@yongerjia.com wej electronic co. r o hs wej electronic co.,ltd
1. 2 1. 0 0. 8 0. 6 0. 4 0. 2 0 0 25 5 0 55 7 5 1 0 0 1 2 5 1 5 0 1 7 5 fig.1-typical for w ard current dera ting cur ve fig.4-typical reverse characteristics ambient tempera ture,( c) o percent of ra ted peak reverse vol t age,(%) a verage for w ard current , (a) inst ant aneous reverse current , (ua) 1 0 0 1 0 1 0 . 1 1 . 0 1 0 1 0 0 fig.5-typical junction cap acit ance revrese vol t age,(v) junction cap acit ance,(pf) 1 2 4 6 8 1 0 2 0 4 0 6 0 1 00 fig.2-maximum non-repetitive peak for w ard surge current number of cycles a t 60 hz peak for w ard surge current ,(a) 3 0 2 0 1 0 0 0 . 4 0. 6 0 . 8 1 . 0 1 . 2 1 . 4 1. 6 1. 8 fig.3-typical inst ant aneous for w ard characteristics inst ant aneous for w ard vol t age,(v) inst ant aneous for w ard current , (a) 1 0 1 . 0 0 . 1 0 . 0 1 8.3ms single half sine-w ave (jedec method) t =t max j j 1 cycle t =25 c pulse width=300us 1% duty cycle j o single phase half w ave 60hz resistive or inductive load 0.375 (9.5mm) lead length " fig.6-test circuit diagram and reverse recover y time characteristic s e t ti m e b a s e fo r 5 0 / 1 0 0 n s / c m t r r i r m ( r e c ) 1 . 0 0 d / d = 5 0 a / u s f t i ( t ) a - t e k r o n n i x 5 4 5 a . k . p l u g i n p r e a m p p 6 0 0 0 p r o b e o r e q u i v a l e n t r i - a d j u s t e d f o r 1 . 4 b e t e e n p o i n t 2 o f r e l a y a n d r e c t i f i e r i n d u c t i v e = 3 . 8 u h r 2 - t e n - 1 w 1 0 c a r b o n c o r e i n p a r a l l e l t a = 2 5 = f o r r e c t i f i e r + 1 0 c - 0 o 1 2 3 4 5 6 7 8 1 . 0 a d c r r o m c o n s t a n t v o l t a g e s up p l y r i p p l e = 3 m v r m s m a x + - zo u t 1 - m a x d c t o 2 kh z 2 1 r 2 1 1 0 w n o n - i n d u c t i v e 3 0 5 0 w n o n - i n d u c t i v e u n i t u n d e r t e s t 3 . 8 u h / 1 . 4 1 . a m p s l o - b l o f u s e c 1 1 . 0 u f 3 0 0 v 3 0 v d c c o n s t a n t v o l t a g e s u p p l y c . p . c l a r e h p g 1 0 0 2 1 1 5 v a 1 0 k 6 0 h z 2 w - + m i n i m i ze a l l l e a d l e n g th s 2 0 1 0 1 . 0 0 . 1 0 . 0 1 0 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 t =25 c j o t =125 c j o t =75 c j o c 1 1 . 0 u f 3 0 0 v t =25 c f=1mhz v =50m v p-p j o sig ifm http:// www.wej.cn e-mail:wej@yongerjia.com wej electronic co. r o hs 1n4942-4948 wej electronic co.,ltd
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