ds25003 rev. 7 - 4 1 of 3 her301-her 305 www.diodes.co m ? diodes incorporated features mechanical data case: molded plasti c terminals: pl ated axial leads, s olderable per mil-std-202, m ethod 208 polarity: color b and denotes cathode approx. weight: 1.2 grams ratings at 25 c ambient temperature unless other wise specified. single phase, half wave, 60hz, resistive or inductive load. maximum ratings and elect rical char acterist ics characteristic symbol her301 her302 her303 her304 her305 unit maximum recurrent peak rev erse voltage v rrm 50 100 200 300 400 v maximum rms voltage v rms 35 70 140 210 280 v maximum dc blocking voltage v dc 50 100 200 300 400 v maximum average forward rec tified current 9.5mm lead length @ t a =50c i (av) 3.0 a peak forward surge cur rent 8.3 ms single half sine-wave superimposed on rated load ( jedec method) i fm 125 a maximum instantaneous forwar d voltage at 3.0 a dc v f 1.1 v maximum dc reverse cur rent at rated dc blocking voltage @ t a = 25c i r 10 a maximum full load reverse current f ull cycle average 9.5mm lead length @ t c = 55c i r 150 a maximum reverse rec overy t ime (note 1) t rr 50 ns typical junc tion capacitance (note 2) c j 70 pf operating and storage temperature range t j , t stg -65 to +150 c notes: 1. reverse rec overy tes t conditions: i f =0.5 a, i r =1.0 a, i rr =0.25a 2. measured at 1 mhz and applied reverse voltage of 4.0 volts. low power loss, high efficiency low leakage low forward voltage drop high current capability high speed switching high surge current rating plastic material - ul flammability classification 94v-0 a a b c d her301 - her305 3.0a hi gh effi ciency recti fier do-201ad dim min max a 25.4 ? b ? 9.5 c 1.2 1.3 d 4.8 5.2 all dimensions in m m d i s c o n t i n u e d n o t r e c o m m e n d e d f o r n e w d e s i g n s , u s e u f 3 0 0 1 - u f 3 0 0 7
ds25003 rev. 7 - 4 2 of 3 her301-her 305 www.diodes.co m 0 1 0 0 1 7 5 1 1 0 1 0 0 1 0 0 0 i , p e a k f o r w a r d s u r g e c u r r e n t ( a ) f s m n u m b e r o f c y c l e s a t 6 0 h z f ig . 4 , m a x . n o n - r e p e ti ti 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 0 0 2 5 5 0 7 5 1 0 0 1 2 5 1 5 0 1 7 5 i , a v e r a g e f o r w a r d c u r r e n t ( a ) a v t , a m b i e n t t e m p e r a t u r e ( c ) a f i g . 1 , ty 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 s i n g l e p h a s e h a l f w a v e 6 0 h z r e s i s t i v e o r i n d u c t i v e l o a d 0 . 5 1 . 0 1 . 5 2 . 0 2 . 5 3 . 0 0 2 5 5 0 7 5 1 0 0 1 2 5 1 5 0 1 7 5 0 .1 1 .0 1 0 1 0 0 1 0 0 0 c , j u n c t i o n c a p a c i t a n c e ( p f ) j v , r e v e r s e v o l t a g e ( v ) r f ig . 5 , t y p ic a l j u n c ti o n c a pa c ita n c e 0 .0 1 0 .1 1 .0 1 0 1 0 0 0 0 .2 0 .4 0 .6 0 .8 1 .0 1 .2 1 .4 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 ( a ) f v , in s t a n t a n e o u s f o rwa r d v o l t a g e ( v ) f f ig . 3 , t y p . in s ta n ta n e o u s f o r w a r d c h a r a c te r is ti c s t = 2 5 c j 0 . 0 1 0 . 1 1 . 0 1 0 1 0 0 1 0 0 0 0 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 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 ( % ) 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 t = 1 5 0 c j t = 1 0 0 c j t = 2 5 c j d i s c o n t i n u e d n o t r e c o m m e n d e d f o r n e w d e s i g n s , u s e u f 3 0 0 1 - u f 3 0 0 7
ds25003 rev. 7 - 4 3 of 3 her301-her 305 www.diodes.co m i m p o r t a n t n o t i c e d i o d e s i n c o r p o r a t e d a n d i t s s u b s i d i a r i e s r e s e r v e t h e r i g h t t o m a k e m o d i f i c a t i o n s , e n h a n c e m e n t s , i m p r o v e m e n t s , c o r r e c t i o n s o r o t h e r c h a n g e s w i t h o u t f u r t h e r n o t i c e t o a n y p r o d u c t h e r e i n . d i o d e s i n c o r p o r a t e d d o e s n o t a s s u m e a n y l i a b i l i t y a r i s i n g o u t o f t h e a p p l i c a t i o n o r u s e o f a n y p r o d u c t d e s c r i b e d h e r e i n ; n e i t h e r d o e s i t c o n v e y a n y l i c e n s e u n d e r i t s p a t e n t r i g h t s , n o r t h e r i g h t s o f o t h e r s . t h e u s e r o f p r o d u c t s i n s u c h a p p l i c a t i o n s s h a l l a s s u m e a l l r i s k s o f s u c h u s e a n d w i l l a g r e e t o h o l d d i o d e s i n c o r p o r a t e d a n d a l l t h e c o m p a n i e s w h o s e p r o d u c t s a r e r e p r e s e n t e d o n o u r w e b s i t e , h a r m l e s s a g a i n s t a l l d a m a g e s . l i f e s u p p o r t d i o d e s i n c o r p o r a t e d p r o d u c t s a r e n o t a u t h o r i z e d f o r u s e a s c r i t i c a l c o m p o n e n t s i n l i f e s u p p o r t d e v i c e s o r s y s t e m s w i t h o u t t h e e x p r e s s e d w r i t t e n a p p r o v a l o f t h e p r e s i d e n t o f d i o d e s i n c o r p o r a t e d . d i s c o n t i n u e d n o t r e c o m m e n d e d f o r n e w d e s i g n s , u s e u f 3 0 0 1 - u f 3 0 0 7
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