f red ultrafa st soft reco ver y diode fe atures ultrafast r ecovery time v ery lo w leak age cu rren t specified at operating conditi ons designed and qualified for industrial level benef its reduced rfi and emi reduced power loss in diode and switch ing transistor higher frequency operation reduced snubbing reduced parts count descri p t ion pro duct sum mar y v r 400 v v f at 15 a at 25 c i f ( av ) 2 x 15 a t ( typical ) rr t ( maximum ) j q ( typical ) rr l ( typical ) rrm hf a30p a40c nell high power products s e m i c o n d u c t o r r o h s r o h s s e m i c o n d u c t o r r o h s r o h s h fa 3 0 p a 4 0 c i s a s t a t e o f t h e a r t c e n t e r t a p u l t r a f a s t r e c o v e r y d i o d e . e m p l o y i n g t h e l a t e s t i n e p i t a x i a l c o n s t r u c t i o n a n d a d v a n c e d p r o c e s s i n g t e c h n i q u e s i t f e a t u r e s a s u p e r b c o m b i n a t i o n o f c h a r a c t e r i s t i c s w h i c h r e s u l t i n p e r f o r m a n c e w h i c h i s u n s u r p a s s e d b y a n y r e c t i f i e r p r e v i o u s l y a v a i l a b l e . w i t h b a s i c r a t i n g s o f 4 0 0 v a n d 1 5 a p e r l e g c o n t i n u o u s c u r r e n t , t h e h fa 3 0 p a 4 0 c i s e s p e c i a l l y w e l l s u i t e d f o r u s e a s t h e c o m p a n i o n d i o d e f o r i g b t s a n d m o s f e t s . i n a d d i t i o n t o u l t r a f a s t r e c o v e r y t i m e , t h e f r e d p r o d u c t l i n e f e a t u r e s e x t r e m e l y l o w v a l u e s o f p e a k r e c o v e r y c u r r e n t ( i ) a n d d o e s n o t e x h i b i t a n y t e n d e n c y t o r r m s n a p - o f f d u r i n g t h e t b p o r t i o n o f r e c o v e r y . t h e f r e d f e a t u r e s c o m b i n e t o o f f e r d e s i g n e r s a r e c t i f i e r w i t h l o w e r n o i s e a n d s i g n i f i c a n t l y l o w e r s w i t c h i n g l o s s e s i n b o t h t h e d i o d e a n d t h e s w i t c h i n g t r a n s i s t o r. t h e s e f r e d a d v a n t a g e s c a n h e l p t o s i g n i f i c a n t l y r e d u c e s n u b b i n g , c o m p o n e n t c o u n t a n d h e a t s i n k s i z e s . t h e f r e d h fa 3 0 p a 4 0 c i s i d e a l l y s u i t e d f o r a p p l i c a t i o n s i n p o w e r c o n v e r s i o n s y s t e m s ( s u c h a s i n v e r t e r s ) , m o t o r d r i v e s , a n d m a n y o t h e r s i m i l a r a p p l i c a t i o n s w h e r e h i g h s p e e d , h i g h e f f i c i e n c y i s n e e d e d . common cathode common cathode 2 2 1 3 anode 1 anode 2 1.3 v 175 c 19 ns 3.0 a 60 nc absolu te maxim um ra tings p arameter symbol cathod e to anode voltage 400 maximum continuous forw ard current per leg i f 15 a per device single pulse forward current 150 maximum repetitive forward current 30 operating junct ion and storage tempe rature range - 55 to + 175 t = 140 oc c oc v r l f s m l f r m t , t j s t g v p a g e 1 o f 5 w w w . n e l l s e m i . c o m w w w . n e l l s e m i . c o m t o - 2 4 7 a b planar fred c hip v ery lo w q rr 175c operat ing ju nction temper ature t = 140 oc, square wave, 20khz c units v alues test condition s 30 2 x 15a / 400v
therma l - mec han ica l spe cif ica tio ns per leg p ar ameter symbol test conditions min . typ . max . units lead temperature t lead 0.063'' from case (1.6 mm ) for 10 s - - 300 junction to case , single leg conduction r thjc - - k / w junction to case , both legs conducting - - therma l resistance , junction to ambie nt r thja typical socket mount - - 40 thermal resistance , case to heatsin k r thcs mounting surface , flat , smoo th and greased - 0.25 - weight - 6.0 - g - 0.21 - oz . mounting torque 6.0 (5.0) - 12 (10) kgf . cm ( lbf . in ) marking device case style to -247 ab ( jedec ) hfa 30 pa 40 c c oc unless otherw ise spec ified ) = 25 p ar ameter symb o l v - = 30 a i f - - a - - 400 1.0 10 - - pf 33 e lectri cal specif ica t ions ( t j cathode to anode breakdown volta ge v br = 100 a i r maximum forwa rd voltage = 15 a i f = 15 a , t i = 125 oc f j maximum reverse leakage curre nt i rm junction capacitance 1.15 1.3 - - oc unless otherw ise spec ified ) = 25 p ar ameter symb ol ns - - 35 95 dynami c recove r y charac terist ics perleg ( t j reverse recov ery time i f = 1.0 a, di /dt = 100 a/s, v =30 v, t = 25 c f r j 19 - a - 6 3 - nc - 300 60 - peak recovery c urrent reverse recov ery charge t rr t rr1 t rr2 i rrm1 i rrm2 q rr1 q rr2 t = 125 oc j t = 125 oc j t = 125 oc j t = 25 oc j t = 25 oc j t = 25 oc j i = 15 a f di /dt = 200 a/s f v = 266 v r - v fm c t v = 2 0 0 v r t = 1 2 5 c , v = v r a t e d j r r v = v r a t e d r r i = 0 . 5 a , i = 1 . 0 a , i = 0 . 2 5 a ( r g # 1 c k t ) f r r r 22 - - units max . typ . min . units max . typ . min . nh 12 series inductance l s 5 0 5 0 0 - - measured lead to lead 5 mm from pack age body 120 6.0 60 27 10 600 180 - tes t conditions tes t conditions 1 . 4 0 0 . 7 0 nell high power products s e m i c o n d u c t o r r o h s r o h s s e m i c o n d u c t o r r o h s r o h s p a g e 2 o f 5 w w w . n e l l s e m i . c o m w w w . n e l l s e m i . c o m hf a30p a40c 1.6 0.5
fig.2 forward current vs. forward voltage fig.3 t ypical reverse recovery time vs. current rate f i g . 1 m a x i m u m e f f e c t i v 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 , j u n c t i o n - t o - c a s e v s . p u l s e d u r a t i o n r e c t a n g u l a r p u l s e d u r a t i o n ( s e c o n d s ) t h e r m a l i m p e d a n c e , z j c ( c / w ) a n o d e - t o - c a t h o d e v o l t a g e , v f ( v ) c u r r e n t r a t e o f c h a n g e , - d i / d t f ( a / s ) f o r w a r d c u r r e n t , i f ( a ) r e v e r s e r e c o v e r y t i m e , t r r ( n s ) fig.4 t ypical recovery charge vs. current reverse fig 5. recovery current vs. current t ypical reverse 0 c u r r e n t r a t e o f c h a n g e , - d i / d t f ( a / s ) c u r r e n t r a t e o f c h a n g e , - d i / d t f ( a / s ) r e v e r s e r e c o v e r y c h a r g e , q r r ( n c ) r e v e r s e r e c o v e r y c u r r e n t , i r r m ( a ) 600 800 400 1200 200 1000 2.5 2 1.5 1 0.5 0 0 1200 1000 800 600 400 200 0 600 800 400 1200 200 1000 1.40 1.20 1.00 0.80 0.60 0.40 0.20 0 0.5 single pulse 0.1 0.3 0.7 0.9 0.05 p d m n o t e : d u t y f a c t o r d = t / t 1 2 p e a k t = p x z + t dm j j c c t 1 t 2 - 5 1 0 - 4 1 0 - 3 1 0 - 2 1 0 - 1 1 0 1 . 0 60 50 40 30 20 10 0 t = 1 5 0 c j t = 1 2 5 c j t = 2 5 c j t = - 5 5 c j 7.5 a 15 a 30 a 100 80 60 40 20 0 120 t = 1 2 5 c j t = 2 6 6 v r 800 700 600 500 400 300 200 100 0 30 a 7.5 a 15 a t = 1 2 5 c j t = 2 6 6 v r 25 20 15 10 5 0 30 a 15 a 7.5 a t = 1 2 5 c j t = 2 6 6 v r nell high power products s e m i c o n d u c t o r r o h s r o h s s e m i c o n d u c t o r r o h s r o h s p a g e 3 o f 5 w w w . n e l l s e m i . c o m w w w . n e l l s e m i . c o m hf a30p a40c of change rate of change rate of change
fig.7 maximum average forward current vs. 1 10 200 f i g 6 . d y n a m i c p a r a m e t e r s v s . j u n c t i o n t e m p e r a t u r e j u n c t i o n t e m p e r a t u r e , t j ( c ) d y n a m i c p a r a m e t e r s , k f ( n o r m a l i z e d t o 1 0 0 0 a / s ) c a s e t e m p e r a t u r e ( c ) l ( a ) f ( a v ) f i g . 8 j u n c t i o n c a p a c i t a n c e v s . r e v e r s e v o l t a g e r e v e r s e v o l t a g e , v r ( v ) j u n c t i o n c a p a c i t a n c e , c j ( p f ) fig.9 reverse recovery parameter test circuit irfp 250 d . u . t . l = 70 h v r = 200 v 0.01 g d s di f / dt adjust fig.10 reverse recovery waveform and definitions q rr 0.5 i rrm di ( rec ) m / dt 0.75 i rrm i rrm t rr t b t a i f di f / dt 0 (1) (2) (3) (4) (5) (1) di / dt - rate of change of current f through zero crossing (2) i rrm - peak re v erse reco v er y current (3) t - re v erse reco v er y time measured rr from z ero crossing point of negativ e going i to point where a line passing f through 0.75 i rrm and 0.50 i rrm e xtrapolated to zero current . (4) q - area under cur v e defined b y t rr rr i rrm l x rr rrm 2 q = rr (5) di / dt - peak rate of change of ( rec ) m current dur ing t b por tion of t rr and t 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 q rr t rr i rrm t rr q rr 0 100 125 150 175 75 50 25 100 125 150 0 75 duty cycle = 0.5 t = 1 7 5 c j 200 150 100 50 0 100 nell high power products s e m i c o n d u c t o r r o h s r o h s s e m i c o n d u c t o r r o h s r o h s p a g e 4 o f 5 w w w . n e l l s e m i . c o m w w w . n e l l s e m i . c o m case temperature hf a30p a40c 5 10 15 30 20 25 dc
or de ring in forma tion t abl e - fred family 1 - c urrent rating (3 0 = 30 a, 15a x 2 ) 2 - p ackage outline ( pa = to -247, 3 pin s ) 3 - voltage r a t i ng (40 = 400 v ) 4 - configuration ( c = center tap common cathode) device code 2 1 h fa 3 0 p a 4 0 c 5 5 3 4 nell high power products s e m i c o n d u c t o r r o h s r o h s s e m i c o n d u c t o r r o h s r o h s p a g e 5 o f 5 w w w . n e l l s e m i . c o m w w w . n e l l s e m i . c o m 2 . 2 1 ( 0 . 0 8 7 ) 2 . 5 9 ( 0 . 1 0 2 ) 0 . 4 0 ( 0 . 0 1 6 ) 0 . 7 9 ( 0 . 0 3 1 ) 1 . 4 9 ( 0 . 0 5 9 ) 2 . 4 9 ( 0 . 0 9 8 ) 4 . 6 9 ( 0 . 1 8 5 ) 5 . 3 1 ( 0 . 2 0 9 ) 5 . 4 5 ( 0 . 2 1 5 ) 5 . 4 5 ( 0 . 2 1 5 ) 1 . 0 1 ( 0 . 0 4 0 ) 1 . 4 0 ( 0 . 0 5 5 ) ( t y p . ) 1 . 0 1 ( 0 . 0 4 0 ) 1 . 4 0 ( 0 . 0 5 5 ) 1 9 . 8 1 ( 0 . 7 8 0 ) 2 0 . 3 2 ( 0 . 8 0 0 ) 4 . 5 0 ( 0 . 1 7 7 ) m a x 2 0 . 8 0 ( 0 . 8 1 9 ) 2 1 . 4 6 ( 0 . 8 4 5 ) 1 6 . 1 5 ( 0 . 2 4 2 ) 1 5 . 4 9 ( 0 . 6 1 0 ) 1 6 . 2 6 ( 0 . 6 4 0 ) 5 . 3 8 ( 0 . 2 1 2 ) 6 . 2 0 ( 0 . 2 4 4 ) 3 . 5 5 ( 0 . 1 3 8 ) 3 . 8 1 ( 0 . 1 5 0 ) 2 . 8 7 ( 0 . 1 1 3 ) 3 . 1 2 ( 0 . 1 2 3 ) 1 . 6 5 ( 0 . 0 6 5 ) 2 . 1 3 ( 0 . 0 8 4 ) ( t y p . ) c o n f o r m s t o j e d e c o u t l i n e t o - 2 4 7 a b d i m e n s i o n s i n m i l l i m e t e r s a n d ( i n c h e s ) anode 2 anode 1 3 3 p i n s c a t h o d e t o b a s e 1 2 3 hf a30p a40c
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