s m d ty p e w w w . k e x i n . c o m . c n 1 di o d e s f e a tu r e s 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 u l t r a f a s t r e v e r s e r e c o v e r y t i m e l o w s w i t c h i n g l o s s e s , h i g h e f f i c i e n c y h i g h f o r w a r d s u r g e c a p a b i l i t y a b s o l u te m a x i m u m ra ti n g s t a = 2 5 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 r e v e r s e v o l t a g e v r m 6 0 0 v a v e r a g e f o r w a r d c u r r e n t @ t l = 1 2 5 i f a v 2 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 i f s m 3 5 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 l e a d r jl 1 5 / w j u n c t i o n t e m p e r a t u r e t j 1 7 5 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 - 6 5 t o 1 7 5 a 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 p a r a m e t e r s y m b o l t e s t c o n d i t i o n s m i n t y p m a x u n i t i f = 2 a , t j = 2 5 1 . 4 5 i f = 2 a , t j = 1 2 5 1 . 2 t j = 2 5 5 t j = 1 2 5 1 5 0 r e v e r s e r e c o v e r y t i m e t r r i f = 0 . 5 a , i r = 1 a , i r r = 0 . 2 5 a 5 0 r e v e r s e r e c o v e r y t i m e t r r i f = 1 a , d i / d t = 5 0 a / u s , v r = 3 0 v , i r r = 1 0 Gi r m 7 5 r e v e r s e r e c o v e r y t i m e t r r i f = 1 a , d i / d t = 1 0 0 a / u s , r e c o v e r y t o 1 v 5 0 n s f o r w a r d v o l t a g e v r e v e r s e v o l t a g e l e a k a g e c u r r e n t v f i r u a m a r k i n g m a r k i n g m 2 j ult r af ast rect if ier dio d es m urs 260 ( k u r s 2 6 0 ) 2.108 2.348 1 2 4.699 4.064 5.588 5.080 3.937 3.302 2.108 1.905 4.12 3.92 2.65 2.45 5.59 5.39 2.10 2.30 1.270 0.762 0.203 0.051 0.305 0.152 recommended land pattern do-214aa(smb) unit: mm
s m d ty p e w w w . k exi n . co m . c n 2 dio d e s t y p i c a l ch a r a c te r i s i ti c s figure 1. forward c urrent dera ting c urve 3.0 2.0 1.0 0 0 25 50 75 100 125 150 175 a v r o f e g a r e w c d e i f i t c e r d r a u ) a ( t n e r r lead t emper at ure (c) f i gu re 2. f orward power loss c h aracteristics d = tp/t tp t 0 0.5 1 1.5 2 2.5 2.5 2 1.5 1 0.5 0 a v o p e g a r e w ( s s o l r e w) a v er age f or w ard c u r rent (a) d = 0.1 d = 0.2 d = 0.3 d = 0.5 d = 0.8 d = 1.0 figure 3 . maximum non - repe t itive pea k f orward surg e current figure 4 . typical instantaneous fo rward characteristics 50 40 30 20 10 0 0 0 1 0 1 1 number of cycles at 50 hz r o f k a e p w s d r a u c e g r u ) a ( t n e r r 80 10 1 0 0.4 0.8 1.2 1.6 2.0 2.4 0.1 0.01 t j = 100 c t j = 175 c t j = 25 c instantaneous f orw ard v oltage ( v) o e n a t n a t s n i u r o f s w c d r a u ) a ( t n e r r figure 5. typical revers e leakage ch a r acteristics figure 6 . typical ju nction cap acitance 100 10 1 0 20 40 60 80 100 0.1 0.01 0.001 t j = 100 c t j = 175 c t j = 25 c p ercent of rated p eak re v erse v oltage (%) o e n a t n a t s n i u e r s v e g a k a e l e s r e cu ( t n e r r ) a 100 10 1 1 10 100 0.1 re v erse v oltage (v) j u i c a p a c n o i t c n ) f p ( e c n a t t j = 25 c f = 1.0 mhz v sig = 50 mvp-p ult r af ast rect if ier dio d es m urs 260 ( k u r s 2 6 0 )
|
