elektronische bauelemente UMMD032 thru ummd034 voltage 20 v ~ 40 v 0.3 a surface mount schottky barrier rectifiers 05-may-2007 rev. a page 1 of 2 http://www.secosgmbh.com/ any changes of specification will not be informed individually. cathode band g e e d a c b f rohs compliant product a suffix of ?-c? specifies halogen & lead-free 0603 features ? lead less chip form, no lead damage ? lead-free solder joint, no wire bond & lead frame ? low power loss, high efficiency ? high current capability, low vf ? plastic package ha s underwriters labora tory flammability classification 94v-0 application ? switching mode power supply applications ? portable equipment battery applications ? general rectification ? dc / dc converter ? telecommunication mechanical data ? case: packed with frp substrate and epoxy underfilled ? terminals: pure tin-plated (lead-free), solderable per mil-std-750, method 2026. ? polarity: laser cathode band marking ? weight : 0.003 gram maximum ratings and electrical characteristics (t a = 25 c) type number symbol UMMD032 ummd034 units peak repetitive peak reverse voltage v rrm 20 40 v maximum average forward current (see fig. 1) i f(av) 0.3 a peak forward current @ 8.3 ms half sine-wave i fsm 2.0 a maximum forward voltage (note 1) i f = 0.3 a 0.50 v typical forward voltage (note 1) i f = 0.1 a i f = 0.2 a i f = 0.3 a v f 0.38 0.43 0.47 v maximum repetitive peak reverse current (note 1) at v r = 10v. t a = 25 c 20 typical repetitive peak reverse current (note 1) at v r = max. v rrm , t a = 25 c i rrm 50 ua typical thermal resistance ? junction to ambient (note 2) r ja 160 typical thermal resistance ? junction to lead (note 2) r jl 110 c / w junction capacitance c j 35 pf operating temperature range t j -55 ~ + 125 c storage temperature t stg -65 ~ + 150 c notes: 1. pulse test width p w = 300 sec, 1% duty cycle. 2. mounted on p.c. board with 0.2 x 0.2? (5.0 x 5.0 mm) copper pad areas. millimete r millimete r ref. min. max. ref. min. max. a 1.50 1.70 e 0.30 0.40 b 0.80 1.00 f r 0.20 c 0.70 typ. g 0.05 ref. d 0.50 0.80
elektronische bauelemente UMMD032 thru ummd034 voltage 20 v ~ 40 v 0.3 a surface mount schottky barrier rectifiers 05-may-2007 rev. a page 2 of 2 http://www.secosgmbh.com/ any changes of specification will not be informed individually. ratings and characteristic curves 0 1 0 1 1 0 0 5 1 0 1 5 2 0 1 0 0 0 r e v e r s e v o l t a g e , ( v ) j u c t i o n c a p a c i t a n c e ( p f ) f i g . 5 - t y p i c a l j u n c t i o n c a p a c i t a n c e 0 0 . 1 0 . 2 0 . 4 0 . 3 5 0 7 5 1 0 0 1 5 0 2 5 1 2 5 0 a v e r a g e f o r w a r d c u r r e n t , ( a ) l e a d t e m p e r a t u r e , ( o c ) f i g . 1 - t y p i c a l 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 f i g . 2 - 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 g e c u r r e n t p e a k f o r w a r d s u r g e c u r r e n t , ( a ) n u m b e r o f c y c l e s a t 6 0 h z 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 ) 0 1 . 0 1 . 5 2 . 0 2 . 5 0 . 5 1 1 0 1 0 0 f i g . 4 - t y 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 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 v o l t a g e v r ( v ) 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 i c r o a m p e r e s 0 . 1 0 0 . 0 1 0 1 . 0 1 0 1 0 0 1 0 0 0 t j = 1 0 0 o c t j = 2 5 o c 1 0 2 0 3 0 4 0 0 0 . 1 1 0 0 0 1 1 0 1 0 0 0 . 1 0 . 2 0 . 3 0 . 4 0 . 5 0 . 7 0 . 6 i 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 , ( m a ) f o r w a r d v o l t a g e , ( v ) f i g . 3 - t y p i c a l i n s t a n t a n e o u s f o r w a r d c h a r a c t e r i s t i c s t a = 2 5 o c
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