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 z en er dio d es 1s m a 5914 ~ 1s m a 5949 f e a tu r e s l o w p r o f i l e p a c k a g e b u i l t - i n s t r a i n r e l i e f g l a s s p a s s i v a t e d j u n c t i o n l o w i n d u c t a n c e t y p i c a l i r l e s s t h a n 1 u a a b o v e 1 2 v h i g h t e m p e r a t u r e s o l d e r i n g : 2 6 0 c / 1 0 s e c o n d s a t t e r m i n a l s 1 2 4.597 3.988 5.668 4.925 2.896 2.489 2.126 1.397 4.32 4.12 2.75 2.55 5.87 5.67 2.02 2.22 1.524 0.762 0.203 0.051 0.305 0.152 recommended land pattern do-214ac(sma) unit: mm 1.981 2.438 a b s o l u te m a x i m u m ra ti n g s t a = 2 5 n o t e . 1 : m o u n t e d o n 5 . 0 m m 2 ( . 0 1 3 m m t h i c k ) l a n d a r e a s . p a r a m e t e r s y m b o l r a t i n g u n i t 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 i f sm 1 0 a p o w e r d i s s i p a t i o n @ t a = 7 0 ( n o t e . 1 ) p d 1 . 5 w d e r a t e a b o v e 7 0 c 1 5 m w / j u n c t i o n t e m p e r a t u r e t j 1 5 0 s t o r a g e t e m p e r a t u r e r a n g e t st g - 5 5 t o 1 5 0
s m d ty p e w w w . kexin . com . c n 2 diod e s z en er dio d es 1s m a 5914 ~ 1s m a 5949 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 r e b m u n t r a p e g a t l o v r e n e z l a n i m o n e c n a d e p m i r e n e z m u m i x a m e s r e v e r x a m t n e r r u c e g a k a e l g n i k r a m e d o c t z i @ z v z z t @ i z t z z k i @ z k i r v @ r v . m o n v . n i m v . x a m ? a m ? a m a v 4 1 9 5 a m s 1 6 . 3 2 4 . 3 8 7 . 3 9 2 . 4 0 1 0 0 5 0 0 . 1 0 0 . 5 7 0 0 . 1 a 4 1 9 5 1 9 5 a m s 1 9 . 3 1 7 . 3 0 1 . 4 8 1 . 6 9 0 0 5 0 0 . 1 0 0 . 5 2 0 0 . 1 a 5 1 9 6 1 9 5 a m s 1 3 . 4 9 0 . 4 2 5 . 4 6 2 . 7 8 0 0 5 0 0 . 1 0 0 . 5 0 0 . 1 a 6 1 9 7 1 9 5 a m s 1 7 . 4 7 4 . 4 4 9 . 4 5 8 . 9 7 0 0 5 0 0 . 1 0 0 . 5 0 5 . 1 a 7 1 9 8 1 9 5 a m s 1 1 . 5 5 8 . 4 6 3 . 5 4 5 . 3 7 0 5 3 0 0 . 1 0 0 . 5 0 0 . 2 a 8 1 9 9 1 9 5 a m s 1 6 . 5 2 3 . 5 8 8 . 5 2 9 . 6 6 0 5 2 0 0 . 1 0 0 . 5 0 0 . 3 a 9 1 9 0 2 9 5 a m s 1 2 . 6 9 8 . 5 1 5 . 6 2 5 . 0 6 0 0 2 0 0 . 1 0 0 . 5 0 0 . 4 a 0 2 9 1 2 9 5 a m s 1 8 . 6 6 4 . 6 4 1 . 7 3 1 . 5 5 0 0 2 0 0 . 1 0 0 . 5 0 2 . 5 a 1 2 9 2 2 9 5 a m s 1 5 . 7 3 1 . 7 8 8 . 7 3 0 . 0 5 0 0 4 0 5 . 0 0 0 . 5 0 0 . 6 a 2 2 9 3 2 9 5 a m s 1 2 . 8 9 7 . 7 1 6 . 8 4 7 . 5 4 0 0 4 0 5 . 0 0 0 . 5 0 5 . 6 a 3 2 9 4 2 9 5 a m s 1 1 . 9 5 6 . 8 6 5 . 9 4 2 . 1 4 0 0 5 0 5 . 0 0 0 . 5 0 0 . 7 a 4 2 9 5 2 9 5 a m s 1 0 1 0 5 . 9 0 5 . 0 1 5 5 . 7 3 0 0 5 5 2 . 0 0 0 . 5 0 0 . 8 a 5 2 9 6 2 9 5 a m s 1 1 1 5 4 . 0 1 5 5 . 1 1 6 1 . 4 3 0 5 5 5 2 . 0 0 0 . 1 0 4 . 8 a 6 2 9 7 2 9 5 a m s 1 2 1 0 4 . 1 1 0 6 . 2 1 7 2 . 1 3 0 5 5 5 2 . 0 0 0 . 1 0 1 . 9 a 7 2 9 8 2 9 5 a m s 1 3 1 5 3 . 2 1 5 6 . 3 1 7 8 . 8 2 0 5 5 5 2 . 0 0 0 . 1 0 9 . 9 a 8 2 9 9 2 9 5 a m s 1 5 1 5 2 . 4 1 5 7 . 5 1 9 0 . 5 2 0 0 6 5 2 . 0 0 0 . 1 0 4 . 1 1 a 9 2 9 0 3 9 5 a m s 1 6 1 0 2 . 5 1 0 8 . 6 1 0 1 4 . 3 2 0 0 6 5 2 . 0 0 0 . 1 0 2 . 2 1 a 0 3 9 1 3 9 5 a m s 1 8 1 0 1 . 7 1 0 9 . 8 1 2 1 8 . 0 2 0 5 6 5 2 . 0 0 0 . 1 0 7 . 3 1 a 1 3 9 2 3 9 5 a m s 1 0 2 0 0 . 9 1 0 0 . 1 2 4 1 7 . 8 1 0 5 6 5 2 . 0 0 0 . 1 0 2 . 5 1 a 2 3 9 3 3 9 5 a m s 1 2 2 0 9 . 0 2 0 1 . 3 2 8 1 0 . 7 1 0 5 6 5 2 . 0 0 0 . 1 0 7 . 6 1 a 3 3 9 4 3 9 5 a m s 1 4 2 0 8 . 2 2 0 2 . 5 2 9 1 6 . 5 1 0 0 7 5 2 . 0 0 0 . 1 0 2 . 8 1 a 4 3 9 5 3 9 5 a m s 1 7 2 5 6 . 5 2 5 3 . 8 2 3 2 9 . 3 1 0 0 7 5 2 . 0 0 0 . 1 0 6 . 0 2 a 5 3 9 6 3 9 5 a m s 1 0 3 0 5 . 8 2 0 5 . 1 3 6 2 5 . 2 1 0 5 7 5 2 . 0 0 0 . 1 0 8 . 2 2 a 6 3 9 7 3 9 5 a m s 1 3 3 5 3 . 1 3 5 6 . 4 3 3 3 4 . 1 1 0 0 8 5 2 . 0 0 0 . 1 0 1 . 5 2 a 7 3 9 8 3 9 5 a m s 1 6 3 0 2 . 4 3 0 8 . 7 3 8 3 4 . 0 1 0 5 8 5 2 . 0 0 0 . 1 0 4 . 7 2 a 8 3 9 9 3 9 5 a m s 1 9 3 5 0 . 7 3 5 9 . 0 4 5 4 6 . 9 0 0 9 5 2 . 0 0 0 . 1 0 7 . 9 2 a 9 3 9 0 4 9 5 a m s 1 3 4 5 8 . 0 4 5 1 . 5 4 3 5 7 . 8 0 5 9 5 2 . 0 0 0 . 1 0 7 . 2 3 a 0 4 9 1 4 9 5 a m s 1 7 4 5 6 . 4 4 5 3 . 9 4 7 6 0 . 8 0 0 0 1 5 2 . 0 0 0 . 1 0 8 . 5 3 a 1 4 9 2 4 9 5 a m s 1 1 5 5 4 . 8 4 5 5 . 3 5 0 7 3 . 7 0 0 1 1 5 2 . 0 0 0 . 1 0 8 . 8 3 a 2 4 9 3 4 9 5 a m s 1 6 5 0 2 . 3 5 0 8 . 8 5 6 8 7 . 6 0 0 3 1 5 2 . 0 0 0 . 1 0 6 . 2 4 a 3 4 9 4 4 9 5 a m s 1 2 6 0 9 . 8 5 0 1 . 5 6 0 0 1 0 . 6 0 0 5 1 5 2 . 0 0 0 . 1 0 1 . 7 4 a 4 4 9 5 4 9 5 a m s 1 8 6 0 6 . 4 6 0 4 . 1 7 0 2 1 5 . 5 0 0 7 1 5 2 . 0 0 0 . 1 0 7 . 1 5 a 5 4 9 6 4 9 5 a m s 1 5 7 5 2 . 1 7 5 7 . 8 7 0 4 1 0 . 5 0 0 0 2 5 2 . 0 0 0 . 1 0 0 . 6 5 a 6 4 9 7 4 9 5 a m s 1 2 8 0 9 . 7 7 0 1 . 6 8 0 6 1 6 . 4 0 0 5 2 5 2 . 0 0 0 . 1 0 2 . 2 6 a 7 4 9 8 4 9 5 a m s 1 1 9 5 4 . 6 8 5 5 . 5 9 0 0 2 1 . 4 0 0 0 3 5 2 . 0 0 0 . 1 0 2 . 8 6 a 8 4 9 9 4 9 5 a m s 1 0 0 1 0 0 . 5 9 0 0 . 5 0 1 0 5 2 7 . 3 0 0 1 3 5 2 . 0 0 0 . 1 0 0 . 6 7 a 9 4 9
s m d ty p e w w w . ke x in . com . c n 3 diod e s z en er dio d es 1s m a 5914 ~ 1s m a 5949 t y p i c a l ch a r a c te r i s i ti c s 10 0 20 0 10 0 7 0 5 0 3 0 2 0 1 0 1 0 2 0 3 0 5 0 7 0 20 0 v z @ i z t vz , zene r vo lt ag e (vo l ts ) fig. 3 zene r v oltag e - 1 4 t o 20 0 v olt s v z=150 v 9 1 v 62 v 22 v 12 v 6.8 v 0. 5 1 2 5 1 0 2 0 5 0 10 0 20 0 50 0 1 k 50 0 20 0 10 0 5 0 2 0 1 0 5 2 1 t j = 2 5 c i z ( r m s ) = 0 . 1 i ( d c ) o z iz , zene r tes t curren t (ma ) ) s m h o ( e c n a d e p m i c i m a n y d , z z ) c / v m ( t n e c i f e o c e r u t a r e p m e t , z v o ) c / v m ( t n e c i f e o c e r u t a r e p m e t , z v o ) s t t a w ( n o i t a p i s s i d r e w o p m u m i x a m , p d fig. 4 e f fec t o f zene r curren t 0. 1 0. 2 0. 3 0. 5 1 2 3 5 1 0 2 0 3 0 5 0 10 0 1 k 50 0 30 0 20 0 10 0 5 0 3 0 2 0 1 0 rec t a n g u l a r nonrep e titiv e w a v e f o r m t j = 2 5 c pri o r o t o in t ia l p uls e ) s t t a w ( r e w o p e g r u s k a e p , k p p p w, puls e widt h (ms ) fig. 6 maximu m surg e powe r 2 0 0 1 0 0 7 0 5 0 3 0 2 0 1 0 7 5 3 2 5 7 1 0 2 0 3 4 0 0 6 5 0 0 7 0 10 0 i z ( d c) = 1 m a i z ( r m s )=0.1 i z ( d c ) 10m a 20m a ) s m h o ( e c n a d e p m i c i m a n y d , z z vz , zene r vo lt ag e (vo l ts ) fig. 5 e f fec t o f zene r v oltag e 2 . 5 2 1 . 5 1 0 . 5 0 0 2 0 4 0 6 0 8 0 1 0 0 12 0 14 0 15 0 18 0 t l ,lea d temper a ture ( c ) o fig. 1 stead y stat e powe r deratin g v , z e n e r v o l t a g e ( v o l t s ) z 8 6 4 2 0 - 2 - 4 2 4 6 8 1 0 1 0 1 2 v z @ i z t fig. 2 zene r v oltag e - t o 1 2 volt s
s m d ty p e w w w . k exi n . co m . c n 4 dio d e s . z en er dio d es 1s m a 5914 ~ 1s m a 5949 t y p i c a l ch a r a c te r i s i ti c s 0 1 2 3 4 5 6 7 8 9 1 0 1 0 0 5 0 3 0 2 0 1 0 5 3 2 1 0. 5 0. 3 0. 2 0. 1 ) a m ( t n e r r u c r e n e z , z i vz , zene r vo lt ag e (vo l ts ) fig. 7 v z = 6. 8 thr u 1 0 v olt s 1 0 0 5 0 3 0 2 0 1 0 5 3 2 1 0. 5 0 . 3 0. 2 0. 1 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 0 0 ) a m ( t n e r r u c r e n e z , z i vz , zene r vo lt ag e (vo l ts ) f i g. 8 v z = 1 2 thr u 8 2 v ol t s
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