s m d ty p e di o d e s 1 w w w . k e x i n . c o m . c n switching diodes bas21,a,c,s (kas21,a,c,s) features f as t s w i t c hi n g s p e e d s urf ac e moun t p ac k ag e i deall y s uit e d f o r a ut omat i c i nsert io n hig h condu c t anc e f o r g enera l p urpos e s w i t chin g a ppli c at ion s absolut e maximum r atings ta = 25 t i n u g n i t a r l o b m y s r e t e m a r a p v e g a t l o v e s r e v e r r 250 v i t n e r r u c d r a w r o f f 200 ma p n o i t a p i s s i d r e w o p d 200 mw operating j unction temperature rang e t j - 55 to + 150 t e g n a r e r u t a r e p m e t e g a r o t s s t g - 55 to + 150 mark in g n o . b a s 2 1 b a s 21 a b a s 21 c b a s 21 s m ark i n g j s j s 2 j s 3 j s 4 b a s 2 1 b a s 2 1 a b a s 2 1 c b a s 2 1 s electrical characteristic s ta = 25 p ara me te r s y m bo l t e st co ndi tio ns mi n t y p m ax uni t revers e b reakdow n v oltage v ( b r ) i r = 100 a 250 v i f 0 . 1 a m 0 0 1 = i f 5 2 . 1 a m 0 0 2 = i e g a k a e l e s r e v e r r v r 100 v 0 0 2 = na c e c n a t i c a p a c n o i t c n u j j v r f p 0 . 5 z h m 0 . 1 = f , v 0 = t e m i t r e v o c e r e s r e v e r r r 50 ns v f forw ard v oltage v 0.4 +0.1 -0.1 2.9 +0.2 -0.1 0.95 +0.1 -0.1 1.9 +0.1 -0.2 2.8 +0.2 -0.1 +0.2 -0.1 1 2 3 unit: mm sot-23-3 1 . 6 0.4 0.15 +0.02 -0.02 0.55 0-0.1 0.68 +0.1 -0.1 1.1 +0.2 -0.1
s m d ty p e w w w . k exi n . co m . c n 2 dio d e s bas21,a,c,s (kas21,a,c,s) ty pic al c har ac t er is it ic s de v i c e m o u n t e d o n a n f r 4 p r int e d - c i r cuit b oa r d . fig.1 m ax imum pe rmis sib le co ntinu o u s for w a r d c u r r e n t a s a fu n c ti o n o f a m bi e n t t e m p e r a t u r e . handbook, halfpage 0 0 2 0 0 1 0 300 200 0 100 t amb ( o c) i f (ma) ( 1 ) t j = 1 5 0 c; typica l valu e s. ( 2 ) t j = 2 5 c; typ i cal va l u es. ( 3 ) t j = 2 5 c ; m a xi m u m va l u e s . fi g .2 fo r w a rd c u r r e n t a s a fu n c ti o n o f fo rw a r d v o l ta g e . handbook, halfpage 2 0 600 i f (ma) 0 200 400 1 v f (v) (1) (3) (2) handbook, full pagewidth 10 t p ( s) 1 i fsm (a) 10 2 10 -1 10 4 10 2 10 3 10 1 fig.3 max imum pe rmis sib le no n-r e p e titiv e p eak fo r w a r d c u r r e n t a s a fu n c ti o n o f p u l s e d u r a ti o n . b a s e d o n s q uar e wav e c urren t s . t j = 2 5 c prior to sur g e.
s m d ty p e w w w . ke x in . com . c n 3 diod e s bas21,a,c,s (kas21,a,c,s) ty pic al c har ac t er is it ic s fig.5 r e v e r s e c u rr en t a s a fun c tion of ju nc tio n t e m p e r a t u r e . 10 2 10 200 0 100 t j ( o c) i r ( a) 1 10 2 10 1 (1) (2) ( 1 ) v r = v rma x ; m a xim u m valu es. ( 2 ) v r = v rma x ; typica l value s. f ig .6 d i o d e c a p a c it an c e a s a fu n c ti o n o f r e v e r s e voltage; typical values. f = 1 m h z; t j = 2 5 c . handbook, halfpage 8 4 0 6 2 1.0 0.8 0.2 0.6 0.4 v r (v) c d (pf) fig.7 m ax imum pe rmis sib le co ntinu o u s re ve rs e vo l t ag e a s a fu n c ti o n o f t he a m bie n t t e m p e r a t u r e . handbook, halfpage 0 0 2 0 0 1 0 300 200 0 100 t amb ( o c) v r (v)
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