surface mount zener diodes * 2 2 5 m w p o w e r d i s s i p a t i o n * i d e a l f o r s u r f a c e m o u n t t e d a p p l i c a t i o n * c a s e : s o t - 2 3 m o l d e d p l a s t i c m e c h a n i c a l d a t a : f e a t u r e s : w e i t r o n h t t p : / / w w w . w e i t r o n . c o m . t w mmbz5221b series s m a l l s i g n a l z e n e r d i o d e s 2 2 5 m w a t t s * z e n e r b r e a k d o w n v o l t a g e r a n g e 2 . 4 v t o 9 1 v * t e r m i n a l s : s o l d e r a b l e p e r m i l - s t d - 2 0 2 , m e t h o d 2 0 8 * p o l a r i t y : c a t h o d e i n d i c a t e d b y p o l a r i t y b a n d * m a r k i n g : m a r k i n g c o d e ( s e e t a b l e o n p a g e 3 ) * w e i g h : 0 . 0 0 8 g r a m s ( a p p r o x ) 1 2 3 s o t - 2 3 u n i t : m m d i m a b c d e g h j k l m m i n 0 . 3 5 1 . 1 9 2 . 1 0 0 . 8 5 0 . 4 6 1 . 7 0 2 . 7 0 0 . 0 1 0 . 8 9 0 . 3 0 0 . 0 7 6 m a x 0 . 5 1 1 . 4 0 3 . 0 0 1 . 0 5 1 . 0 0 2 . 1 0 3 . 1 0 0 . 1 3 1 . 1 0 0 . 6 1 0 . 2 5 s o t - 2 3 o u t l i n e d i m e n s i o n s
m m b z 5 2 2 1 b s e r i e s w e i t r o n 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 c h a r a c t e r i s t i c s s y m b o l u n i t t o t a l p o w e r d i s s i p a t i o n o n f r - 5 b o a r d @ t = 2 5 c 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 a i r f o r w a r d v o l t a g e @ i f = 1 0 m a j u n c t i o n 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 v c / w n o t e s : 1 . f r - 5 = 1 . 0 * 0 . 7 5 * 0 . 6 2 i n c r j a w e i t r o n h t t p : / / w w w . w e i t r o n . c o m . t w ( 1 ) ( 1 ) p d v f t j , t s t g v a l u e 2 2 5 5 5 6 0 . 9 - 6 5 t o + 1 5 0 m w ( t a = 2 5 c u n l e s s o t h e r w i s e n o t e d ) a z e n e r v o l t a g e r e g u l a t o r i f v i i r i z t v r v z v f 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 ( p i n o u t : 1 - a n o d e , 2 - n o c o n n e c t i o n , 3 - c a t h o d e ) ( t a = 2 5 c u n l e s s o t h e r w i s e n o t e d , v f = 0 . 9 v m a x . @ i f = 1 0 m a ) s y m b o l p a r a m e t e r v z r e v e r s e z e n e r v o l t a g e @ i z t i z t r e v e r s e c u r r e n t z z t m a x i m u m z e n e r i m p e d a n c e @ i z t i r r e v e r s e l e a k a g e c u r r e n t @ v r v r r e v e r s e v o l t a g e i f f o r w a r d c u r r e n t v f f o r w a r d v o l t a g e @ i f z d e v i c e m a r k i n g i t e m m m b z 5 2 2 1 b s e r i e s m a r k i n g x x = s p e c i f i c d e v i c e c o d e ( s e e t a b l e o n p a g e 3 ) e q u i v a l e n t c i r c u i t d i a g r a m 3 c a t h o d e a n o d e 1 i z k z k r e v e r s e c u r r e n t m a x i m u m z e n e r i m p e d a n c e @ i z k
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 ( p i n o u t : 1 - a n o d e , 2 - n c , 3 - c a t h o d e ) ( v f = 0 . 9 v m a x @ i f = 1 0 m a f o r a l l t y p e s . ) z e n e r v o l t a g e ( n o t e ) z e n e r i m p e d a n c e l e a k a g e c u r r e n t d e v i c e v z ( v o l t s ) @ i z t z z t @ i z t z z k @ i z k i r @ v r d e v i c e d e v i c e m a r k i n g m i n n o m m a x m a m a u a v o l t s m m b z 5 2 2 1 b 1 8 a 2 . 2 8 2 . 4 2 . 5 2 2 0 3 0 1 2 0 0 0 . 2 5 1 0 0 1 m m b z 5 2 2 2 b 1 8 b 2 . 3 7 2 . 5 2 . 6 3 2 0 3 0 1 2 5 0 0 . 2 5 1 0 0 1 m m b z 5 2 2 3 b 1 8 c 2 . 5 6 2 . 7 2 . 8 4 2 0 3 0 1 3 0 0 0 . 2 5 7 5 1 m m b z 5 2 2 4 b 1 8 d 2 . 6 6 2 . 8 2 . 9 4 2 0 3 0 1 4 0 0 0 . 2 5 7 5 1 m m b z 5 2 2 5 b 1 8 e 2 . 8 5 3 3 . 1 5 2 0 2 9 1 6 0 0 0 . 2 5 5 0 1 m m b z 5 2 2 6 b 8 a 3 . 1 3 3 . 3 3 . 4 7 2 0 2 8 1 6 0 0 0 . 2 5 2 5 1 m m b z 5 2 2 7 b 8 b 3 . 4 2 3 . 6 3 . 7 8 2 0 2 4 1 7 0 0 0 . 2 5 1 5 1 m m b z 5 2 2 8 b 8 c 3 . 7 0 3 . 9 4 . 1 0 2 0 2 3 1 9 0 0 0 . 2 5 1 0 1 m m b z 5 2 2 9 b 8 d 4 . 0 8 4 . 3 4 . 5 2 2 0 2 2 2 0 0 0 0 . 2 5 5 1 m m b z 5 2 3 0 b 8 e 4 . 4 6 4 . 7 4 . 9 4 2 0 1 9 1 9 0 0 0 . 2 5 5 2 m m b z 5 2 3 1 b 8 f 4 . 8 4 5 . 1 5 . 3 6 2 0 1 7 1 6 0 0 0 . 2 5 5 2 m m b z 5 2 3 2 b 8 g 5 . 3 2 5 . 6 5 . 8 8 2 0 1 1 1 6 0 0 0 . 2 5 5 3 m m b z 5 2 3 3 b 8 h 5 . 7 0 6 6 . 3 0 2 0 7 1 6 0 0 0 . 2 5 5 3 . 5 m m b z 5 2 3 4 b 8 j 5 . 8 9 6 . 2 6 . 5 1 2 0 7 1 0 0 0 0 . 2 5 5 4 m m b z 5 2 3 5 b 8 k 6 . 4 6 6 . 8 7 . 1 4 2 0 5 7 5 0 0 . 2 5 3 5 m m b z 5 2 3 6 b 8 l 7 . 1 2 7 . 5 7 . 8 8 2 0 6 5 0 0 0 . 2 5 3 6 m m b z 5 2 3 7 b 8 m 7 . 7 9 8 . 2 8 . 6 1 2 0 8 5 0 0 0 . 2 5 3 6 . 5 m m b z 5 2 3 8 b 8 n 8 . 2 6 8 . 7 9 . 1 4 2 0 8 6 0 0 0 . 2 5 3 6 . 5 m m b z 5 2 3 9 b 8 p 8 . 6 4 9 . 1 9 . 5 6 2 0 1 0 6 0 0 0 . 2 5 3 7 m m b z 5 2 4 0 b 8 q 9 . 5 0 1 0 1 0 . 5 0 2 0 1 7 6 0 0 0 . 2 5 3 8 m m b z 5 2 4 1 b 8 r 1 0 . 4 1 1 1 1 . 5 5 2 0 2 2 6 0 0 0 . 2 5 2 8 . 4 m m b z 5 2 4 2 b 8 s 1 1 . 4 0 1 2 1 2 . 6 0 2 0 3 0 6 0 0 0 . 2 5 1 9 . 1 m m b z 5 2 4 3 b 8 t 1 2 . 3 5 1 3 1 3 . 6 5 9 . 5 1 3 6 0 0 0 . 2 5 0 . 5 9 . 9 m m b z 5 2 4 4 b 8 u 1 3 . 3 0 1 4 1 4 . 7 0 9 1 5 6 0 0 0 . 2 5 0 . 1 1 0 m m b z 5 2 4 5 b 8 v 1 4 . 2 5 1 5 1 5 . 7 5 8 . 5 1 6 6 0 0 0 . 2 5 0 . 1 1 1 m m b z 5 2 4 6 b 8 w 1 5 . 2 0 1 6 1 6 . 8 0 7 . 8 1 7 6 0 0 0 . 2 5 0 . 1 1 2 m m b z 5 2 4 7 b 8 x 1 6 . 1 5 1 7 1 7 . 8 5 7 . 4 1 9 6 0 0 0 . 2 5 0 . 1 1 3 m m b z 5 2 4 8 b 8 y 1 7 . 1 0 1 8 1 8 . 9 0 7 2 1 6 0 0 0 . 2 5 0 . 1 1 4 m m b z 5 2 4 9 b 8 z 1 8 . 0 5 1 9 1 9 . 9 5 6 . 6 2 3 6 0 0 0 . 2 5 0 . 1 1 4 m m b z 5 2 5 0 b 8 1 a 1 9 . 0 0 2 0 2 1 . 0 0 6 . 2 2 5 6 0 0 0 . 2 5 0 . 1 1 5 m m b z 5 2 5 1 b 8 1 b 2 0 . 9 0 2 2 2 3 . 1 0 5 . 6 2 9 6 0 0 0 . 2 5 0 . 1 1 7 m m b z 5 2 5 2 b 8 1 c 2 2 . 8 0 2 4 2 5 . 2 0 5 . 2 3 3 6 0 0 0 . 2 5 0 . 1 1 8 m m b z 5 2 5 3 b 8 1 d 2 3 . 7 5 2 5 2 6 . 2 5 5 3 5 6 0 0 0 . 2 5 0 . 1 1 9 m m b z 5 2 5 4 b 8 1 e 2 5 . 6 5 2 7 2 8 . 3 5 4 . 6 4 1 6 0 0 0 . 2 5 0 . 1 2 1 m m b z 5 2 5 5 b 8 1 f 2 6 . 6 0 2 8 2 9 . 4 0 4 . 5 4 4 6 0 0 0 . 2 5 0 . 1 2 1 m m b z 5 2 5 6 b 8 1 g 2 8 . 5 0 3 0 3 1 . 5 0 4 . 2 4 9 6 0 0 0 . 2 5 0 . 1 2 3 m m b z 5 2 5 7 b 8 1 h 3 1 . 3 5 3 3 3 4 . 6 5 3 . 8 5 8 7 0 0 0 . 2 5 0 . 1 2 5 m m b z 5 2 5 8 b 8 1 j 3 4 . 2 0 3 6 3 7 . 8 0 3 . 4 7 0 7 0 0 0 . 2 5 0 . 1 2 7 m m b z 5 2 5 9 b 8 1 k 3 7 . 0 5 3 9 4 0 . 9 5 3 . 2 8 0 8 0 0 0 . 2 5 0 . 1 3 0 m m b z 5 2 6 0 b 8 1 l 4 0 . 8 5 4 3 4 5 . 1 5 3 9 3 9 0 0 0 . 2 5 0 . 1 3 3 m m b z 5 2 6 1 b 8 1 m 4 4 . 6 5 4 7 4 9 . 3 5 2 . 7 1 0 5 1 0 0 0 0 . 2 5 0 . 1 3 6 m m b z 5 2 6 2 b 8 1 n 4 8 . 4 5 5 1 5 3 . 5 5 2 . 5 1 2 5 1 1 0 0 0 . 2 5 0 . 1 3 9 m m b z 5 2 6 3 b 8 1 p 5 3 . 2 0 5 6 5 8 . 8 0 2 . 2 1 5 0 1 3 0 0 0 . 2 5 0 . 1 4 3 m m b z 5 2 6 4 b 8 1 q 5 7 . 0 0 6 0 6 3 . 0 0 2 . 1 1 7 0 1 4 0 0 0 . 2 5 0 . 1 4 6 m m b z 5 2 6 5 b 8 1 r 5 8 . 9 0 6 2 6 5 . 1 0 2 1 8 5 1 4 0 0 0 . 2 5 0 . 1 4 7 m m b z 5 2 6 6 b 8 1 s 6 4 . 6 0 6 8 7 1 . 4 0 1 . 8 2 3 0 1 6 0 0 0 . 2 5 0 . 1 5 2 m m b z 5 2 6 7 b 8 1 t 7 1 . 2 5 7 5 7 8 . 7 5 1 . 7 2 7 0 1 7 0 0 0 . 2 5 0 . 1 5 6 m m b z 5 2 6 8 b 8 1 u 7 7 . 9 0 8 2 8 6 . 1 0 1 . 5 3 3 0 2 0 0 0 0 . 2 5 0 . 1 6 2 m m b z 5 2 6 9 b 8 1 v 8 2 . 6 5 8 7 9 1 . 3 5 1 . 4 3 7 0 2 2 0 0 0 . 2 5 0 . 1 6 8 m m b z 5 2 7 0 b 8 1 w 8 6 . 4 5 9 1 9 5 . 5 5 1 . 4 4 0 0 2 3 0 0 0 . 2 5 0 . 1 6 9 n o t e . z e n e r v o l t a g e i s m e a s u r e d w i t h a p u l s e t e s t c u r r e n t i z a t a n a m b i e n t t e m p e r a t u r e o f 2 5 c mmbz5221b series w e i t r o n weitron http://www .weitron.com.tw w w
t y p i c a l c h a r a c t e r i s t i c s c , c a p a c i t a n c e ( p f ) 1 0 0 v z , n o m i n a l z e n e r v o l t a g e ( v ) f i g u r e 5 . t y p i c a l c a p a c i t a n c e 1 0 0 0 1 0 0 1 0 1 1 0 1 b i a s a t 5 0 % o f v z n o m t a = 2 5 c 0 v b i a s 1 v b i a s 1 2 v z , z e n e r v o l t a g e ( v ) 1 0 0 1 0 1 0 . 1 0 . 0 1 1 0 8 6 4 2 0 t a = 2 5 c i z , z e n e r c u r r e n t ( m a ) v z , z e n e r v o l t a g e ( v ) 1 0 0 1 0 1 0 . 1 0 . 0 1 1 0 3 0 5 0 7 0 9 0 t a = 2 5 c i r , l e a k a g e c u r r e n t ( a ) m 9 0 v z , n o m i n a l z e n e r v o l t a g e ( v ) f i g u r e 6 . t y p i c a l l e a k a g e c u r r e n t 1 0 0 0 1 0 0 1 0 1 0 . 1 0 . 0 1 0 . 0 0 1 0 . 0 0 0 1 0 . 0 0 0 0 1 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 + 1 5 0 c + 2 5 c 5 5 c i z , z e n e r c u r r e n t ( m a ) f i g u r e 7 . z e n e r v o l t a g e v e r s u s z e n e r c u r r e n t ( v z u p t o 1 2 v ) f i g u r e 8 . z e n e r v o l t a g e v e r s u s z e n e r c u r r e n t ( 1 2 v t o 9 1 v ) m m b z 5 2 2 1 b s e r i e s w e i t r o n w e i t r o n h t t p : / / w w w . w e i t r o n . c o m . t w
t y p i c a l c h a r a c t e r i s t i c s v z , t e m p e r a t u r e c o e f f i c i e n t ( m v / c ) q v z , n o m i n a l z e n e r v o l t a g e ( v ) 3 2 1 0 1 2 3 4 5 6 7 8 1 2 1 1 1 0 9 8 7 6 5 4 3 2 f i g u r e 1 . t e m p e r a t u r e c o e f f i c i e n t s ( t e m p e r a t u r e r a n g e 5 5 c t o + 1 5 0 c ) t y p i c a l t c v a l u e s f o r m m b z 5 2 2 1 b l t 1 s e r i e s v z @ i z t v z , t e m p e r a t u r e c o e f f i c i e n t ( m v / c ) q 1 0 0 1 0 1 1 0 1 0 0 v z , n o m i n a l z e n e r v o l t a g e ( v ) f i g u r e 2 . t e m p e r a t u r e c o e f f i c i e n t s ( t e m p e r a t u r e r a n g e 5 5 c t o + 1 5 0 c ) t y p i c a l t c v a l u e s f o r m m b z 5 2 2 1 b l t 1 s e r i e s v z @ i z t 1 0 0 v z , n o m i n a l z e n e r v o l t a g e f i g u r e 3 . e f f e c t o f z e n e r v o l t a g e o n z e n e r i m p e d a n c e 1 0 1 z z t , d y n a m i c i m p e d a n c e ( ) w 1 0 0 0 1 0 0 1 0 1 t j = 2 5 c i z ( a c ) = 0 . 1 i z ( d c ) f = 1 k h z i z = 1 m a 5 m a 2 0 m a v f , f o r w a r d v o l t a g e ( v ) f i g u r e 4 . t y p i c a l f o r w a r d v o l t a g e 1 . 2 1 . 1 1 . 0 0 . 9 0 . 8 0 . 7 0 . 6 0 . 5 0 . 4 i f , f o r w a r d c u r r e n t ( m a ) 1 0 0 0 1 0 0 1 0 1 7 5 v ( m m b z 5 2 6 7 b l t 1 ) 9 1 v ( m m b z 5 2 7 0 b l t 1 ) 1 5 0 c 7 5 c 2 5 c 0 c w e i t r o n h t t p : / / w w w . w e i t r o n . c o m . t w m m b z 5 2 2 1 b s e r i e s w e i t r o n
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