k34b sk38bf sk310bf sk32bf thru sk320bf surface mount schottky barrier rectifier reverse voltage - 20 to 200 volts forward current - 3.0 ampere maximum ratings and electrical characteristics note: 1.measured at 1mhz and applied reverse voltage of 4.0v d.c. 2.p.c.b. mounted with 0.2x0.2 ? (5.0x5.0mm) copper pad areas ratings at 25 c ambient temperature unless otherwise specified. single phase half-wave 60hz,resistive or inductive load,for capacitive load current derate by 20%. volts volts volts symbols units amp amps volts v rrm v rms v dc i (av) i fsm v f 3.0 80.0 0.70 operating junction temperature range maximum repetitive peak reverse voltage maximum rms voltage maximum dc blocking voltage maximum average forward rectified current at t l (see fig.1) peak forward surge current 8.3ms single half sine-wave superimposed on rated load (jedec method) maximum instantaneous forward voltage at 3.0a maximum dc reverse current t a =25 c at rated dc blocking voltage t a =100 c typical junction capacitance (note 1) i r 0.3 r q ja c j t j , t stg 50.0 400 pf c ma typical thermal resistance (note 2) c/w storage temperature range c -50 to +150 -50 to +125 3.0 0.55 0.85 features mechanical data sk32bf sk34bf sk36bf 20 14 20 40 28 40 60 42 60 80 56 80 100 70 100 sk320bf 200 140 200 SK315BF 150 105 150 0.95 mdd catalog number for surface mounted applications metal silicon junction,majority carrier conduction low power loss,high efficiency high forward surge current capability for use in low voltage,high frequency inverters, free wheeling,and polarity protection applicatlons case : jedec smbf molded plastic body terminals : leads solderable per mil-std-750, method 2026 mounting position : any weight :57mg/0.002oz dimensions in inches and (millimeters) smbf cathode band top view 0.165(4.2) 0.173(4.4) 0.216(5.5) 0.200(5.1) 0.146(3.70) 0.138(3.50) 0.075(1.90) 0.086(2.20) 0.051(1.30) 0.043(1.10) 0.010(0.26) 0.0071(0.18) 0.051(1.30) 0.039(1.0) 450 marking code k310b k38b k32b k36b k320b k315b 70.0 0.5 5.0
ratings and characteristic curves sk32bf thru sk320bf 0 . 1 0 0 . 4 1 . 4 f i g . 3 ty p i c a l f o r w a r d c h a r a c t e r i s t i c i n s t a n e o u s f o r w a r d c u r r e n t ( a ) i n s t a n e o u s f o r w a r d vo l t a g e ( v ) 1 . 0 1 0 0 . 6 0 . 2 0 . 8 1 . 0 1 . 2 1 . 8 1 . 6 s k 3 2 b f / s k 3 4 b f s k 3 6 b f / s k 3 8 b f s k 3 1 0 b f s k 3 1 5 b f / s k 3 2 0 b f 2 0 1 0 1 0 0 1 3 0 4 0 5 0 2 0 6 0 8 0 7 0 f i g . 5 m a x i m u m n o n - r e p e t i t i v e p e a k f o r w a r d s u r a g e c u r r e n t peak a) forward surage current ( n u m b e r o f c y c l e s a t 6 0 h z f i g . 2 ty p i c a l r e v e r s e c h a r a c t e r i s t i c s i n s t a n e o u s c u r r e n t ( a ) r e v e r s e 2 0 4 0 6 0 8 0 0 t = 2 5 j c t = 1 0 0 j c p e r c e n t o f r a t e d p e a k r e v e r s e vo l t a g e % 1 0 0 1 0 0 1 0 1 1 0 2 1 0 3 1 0 4 t = 7 5 j c s k 3 2 b f / s k 3 6 b f s k 3 8 b f - s k 3 2 0 b f 0 . 6 1 . 2 1 . 8 2 . 4 3 . 0 3 . 5 0 . 0 2 5 5 0 7 5 1 0 0 1 2 5 1 5 0 f i g . 1 f o r w a r d c u r r e n t d e r a t i n g c u r v e a v e r a g e f o r w a r d c u r r e n t ( a ) s i n g l e p h a s e h a l f w a v e r e s i s t i v e o r i n d u c t i v e p . c . b m o u n t e d o n 0 . 5 0 . 5 " ( 1 2 . 7 ) 1 2 . 7 m m p a d a r e a s 0 . 0 1 1 0 0 1 1 0 1 0 0 f i g . 6 - ty p i c a l t r a n s i e n t t h e r m a l i m p e d a n c e t r a n s i e n t t h e r m a l i m p e d a n c e / w c t , p u l s e d u r a t i o n s e c 0 . 1 1 1 0 l e a d t e m p e r a t u r e ( c ) f i g . 4 ty p i c a l j u n c t i o n c a p a c i t a n c e j u n c t i o n c a p a c i t a n c e ( p f ) r e v e r s e vo l t a g e ( v ) 1 0 0 . 1 1 0 1 0 0 5 0 0 2 0 1 0 0 1 1 0 0 0 t = 2 5 j c 2 0 0 s k 3 2 b f ~ s k 3 6 b f s k 3 8 b f ~ s k 3 2 0 b f 9 0 8 . 3 m s s i n g l e h a l f s i n e w a v e ( j e d e c m e t h o d ) s k 3 2 b f - s k 3 8 b f s k 3 1 0 b f - s k 3 2 0 b f the cruve g ra p h is for reference onl y , can't be the basis for j ud g ment ( ? ) !
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