page 1 qw -jb062 smd schottky barrier rectifiers rev :a comchip t echnology co., l td. c o m c h i p s m d d i o d e s p e c i a l i s t co mp an y r es erv es th e r igh t to im pro ve pr od uc t d es ign , f un cti on s a nd re lia bili ty wit ho ut no tic e. reverse v oltage: 40 v olts forward current: 3.0 amp rohs device CDBAS340-HF d i m e n s i o n s i n i n c h e s a n d ( m i l l i m e t e r ) sma-s 0.191(4.85) 0.173(4.40) 0.108(2.75) 0.096(2.45) 0.043(1.10) max. 0.043(1.10) mechanical data - built-in strain relief - metal silicon junction with guard ring halogen free features - silicon epitaxial planar chips - case: molded plastic, sma-s - t erminals: solder plated solderable per mil-std-750 method 2026 - polarity: color band denotes cathode end - epoxy: ul94-v0 rate flame retardant circuit diagram t yp. - w eight: 0.045 grams(approx.) - for use in low voltage, high frequency invertors free wheeling and polarity protection - high surge and current capability 0.045(1.15) t yp. 0.153(3.90) 0.132(3.35) - mounting position: any maximum ratings and electrical characteristics (at t a =25c unless otherwise noted) no tes : 1. pu lse te st: 300 s pu lse wi dth ,1% du ty c ycl e maximum recurrent peak reverse voltage maximum dc blocking voltage maximum rms voltage peak forward surge current 8.3ms single half sine-wave superimposed on rate load (jedec method) maximum dc reverse current at rated dc blocking voltage operating junction temperature range storage temperature range v alue unit symbol parameter v rrm v dc v rms i fsm i f(a v) i r r ja t j t stg 40 40 28 80 3.0 20 55 -55 to +125 -55 to +150 v v v a a ma c/w c c maximum forward voltage at 3.0a (note1) v f v 0.50 2 . m eas ure d a t 1 .0m hz an d a ppl ied re ver se vol tag e o f 4 .0 vol ts r jl junction to lead junction to ambient 17 c/w t =25c a t a =100c 0.1 c j 250 p f t ypical junction capacitance (note2) t ypical thermal resistance (note3) maximum average forward current 0.2 x0.2 5.0x5.0mm) copper pad area, see figure 1 ( 3 . th erm al r esi sta nce fro m jun ctio n t o a mb ien t a nd fro m jun ctio n t o le ad p .c. b. mo unt ed on 0.2 x0. 2( 5.0 x5. 0m m) co ppe r p ad are as. 0.057(1.45) 0.051(1.30)
comchip t echnology co., l td. page 2 ra ting and characteristic cur ves ( CDBAS340-HF ) qw -jb062 company reserves the right to improve product design , functions and reliability without notice. rev :a smd schottky barrier rectifiers a v e r a g e f o r w a r d c u r r e n t , ( a ) lead t emperature, (c) fig. 1 - forward current derating curve p e a k f o r w a r d s u r g e c u r r e n t , ( a ) number of cycles at 60hz fig. 2 - maximum non-repetitive peak forward surge current instantaneous forward v oltage, (v) i n s t a n t a n e o u s f o r w a r d c u r r e n t , ( a ) fig. 3 - t ypical instantaneous forward characteristics fig. 4 - t ypical reverse characteristics percent of rated peak reverse v oltage, (%) i n s t a n t a n e o u s r e v e r s e c u r r e n t , ( m a ) fig. 5 - t ypical junction capacitance reverse v oltage, (v) j u n c t i o n c a p a c i t a n c e , ( p f ) 3.6 1.8 3.0 0 1000 100 10 100 0.1 0.01 10 1.0 0.001 100 10 1 2.4 1.2 0.6 10 0.01 1.0 0.1 0 80 20 40 60 140 100 0.2 0.4 0.6 0.8 1.0 0 120 10 100 100 25 50 75 175 125 0 150 1.0 100 10 0.1 t j = 25c 8.3ms single half sine-wave (jedec method) single phase half wave 60h z resistive or inductive load pluse width 300us t j = 25c 1% duty cycle
comchip t echnology co., l td. page 3 qw -jb062 reel t aping specification o 1 2 0 t c i n d e x h o l e d e f b w p p 0 p 1 a d 1 d 2 d w 1 company reserves the right to improve product design , functions and reliability without notice. rev :a smd schottky barrier rectifiers b c d d d 2 d 1 s y m b o l ( m m ) ( i n c h ) 2 . 9 5 3 0 . 0 7 9 1 . 5 5 0 . 0 5 7 5 . 0 0 2 . 0 0 1 3 . 0 0 0 . 5 0 1 7 8 . 0 0 2 . 0 0 0 . 0 6 1 0 . 0 0 2 7 . 0 0 8 0 . 0 7 9 0 . 5 1 2 0 . 0 2 0 2 . 8 5 0 . 1 0 0 . 1 1 2 0 . 0 0 4 5 . 1 0 0 . 1 0 0 . 2 0 1 0 . 0 0 4 1 . 2 5 0 . 0 5 0 . 0 4 9 0 . 0 0 2 s m a - s 4 . 0 0 0 . 1 0 4 . 0 0 0 . 1 0 2 . 0 0 0 . 0 5 1 2 . 0 0 0 . 1 0 1 6 . 8 0 4 . 0 0 s y m b o l ( m m ) ( i n c h ) 0 . 1 5 7 0 . 0 0 4 0 . 1 5 7 0 . 0 0 4 0 . 0 7 9 0 . 0 0 2 0 . 6 6 1 0 . 1 5 7 e f p p 0 p 1 w w 1 1 . 7 5 0 . 1 0 0 . 0 6 9 0 . 0 0 4 5 . 5 0 0 . 0 5 0 . 2 1 7 0 . 0 0 2 0 . 2 5 0 . 0 5 0 . 0 1 0 0 . 0 0 2 t 0 . 4 7 2 0 . 0 0 4 s m a - s a t railer device leader 400mm (min) 160mm (min) ....... ....... ....... ....... ....... ....... ....... ....... end start direction of feed
comchip t echnology co., l td. page 4 qw -jb062 company reserves the right to improve product design , functions and reliability without notice. rev :a marking code 3 4 s xxx = product type marking code part number marking code CDBAS340-HF 34s smd schottky barrier rectifiers a c b standard packaging c a s e t y p e 3 , 0 0 0 r e e l ( p c s ) reel size (inch) 7 r e e l p a c k d o - 2 1 4 a c ( s m a - s ) suggested p ad layout size (inch) 0.075 (mm) 1.90 1.60 2.70 0.063 0.106 b c a do-214ac/sma-s = cathod band 5.90 0.232 d d
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