s e m i c o n d u c t o r r o h s r o h s n k t 2 5 0 / n k h 2 5 0 s e r i e s major ra tin gs an d char acteristics symbol charact eristics i t ( av ) 85 c i t ( rms ) a i tsm 50 hz 60 hz 2 i t 50 hz ka 2 s 60 hz 2 i drm/ rrm range t j range 85 c units v a l u e s a 2 ka s c v 2 5 0 3 9 3 8 5 0 0 8 9 2 5 3 6 1 3 2 9 3 6 1 2 4 0 0 t o 1 6 0 0 - 4 0 t o 1 2 5 n ell high power products p a g e 1 o f 4 thyr istor / diode and thyr istor / thyristor , 250a ( magn - a - p a k power module s ) featu res ? high voltage ? electrically isolated by dbc ceramic ( ai o ) 2 3 ? 3500 v rms isolating voltage ? industrial standard package ? high surge capability ? glass passiv ated chips ? modules uses high voltage power thyristor / dio des in two basi c config urations ? simple mounting ? ul appro ved file e320098 ? compliant to rohs ? designed and qualified for multiple level ap plication s ? dc mot or control and drives ? battery charges ? w elders ? power converters ? lighting control ? heat and temperature control pr oduc t summar y i t ( av ) 250 a ? ups a l l d i m e n s i o n s i n m i l l i m e t e r s - ~ + k 1 g 1 - ~ + k 2 g 2 k 1 g 1 n k t n k h m a g n a - p a k 5 3 1 3 8 1 2 5 1 4 7 1 5 2 1 3 9 1 6 0 3 3 7 1 2 5 1 4 0 8 0 9 2 1 1 5 + 3 6 . 3 2 . 8 x 0 . 8 0 . 1 3 - s c r e w s m 8 2 3 . 5 3 5 4 - 8 w w w . n e l l s e m i . c o m
p a g e 2 o f 4 s e m i c o n d u c t o r r o h s r o h s for w ard cond uctio n p aramete r symbol test conditi ons maximum average on - state current at case temperature i t ( av ) 180 conduction , half sine wave ,50hz maximum rms on - state current a maximum peak , one - cycl e, on - state non - repetitive cur ren t i tsm t = 10 ms no vol tage reapplie d sine half wave , t j = t j maximum t = 8.3 ms maximum i 2 for fusing i 2 t ka 2 s maximum i 2 for fusing i 2 = 0.1 ms to 10 ms , no reapplied maximum on - state voltage drop v tm i tm = 750 a , t j = 25 c , 180 conduction maximum forward voltage drop v fm i fm = 750 a , t j = 25 c , 180 conduct ion maximum holdi ng current i h anode suppl y = 12 v initial i t = 1 a , t j = 25 c ma maximum latching current i l anode suppl y = 12 v resistive load = 1 gate pulse : 10 v , 100 s , t j = 25 c 400 v units elec tric al spec ific a tions vol t age ra ting s type number vol t age code rrm / v drm , maximum repetitive e reverse vol t age rsm / v dsm , maximum non - repetitive e reverse vol t age i rrm / i drm a t 125 c ma nkt250 04 400 500 30 08 800 900 12 1200 1300 14 1400 1500 16 1600 1700 180 conduction , half sine wave ,50hz ,t = 85 c c v a l u e s 2 5 0 8 5 3 9 3 8 5 0 0 8 9 2 5 3 6 1 3 2 9 3 6 1 2 1 . 7 1 . 4 2 0 0 a c n ell high power products t = 10 ms t = 8.3 ms t = 10 ms t = 8.3 ms ka 2 s 2 5 3 2 3 0 reapplie d 1 0 0 % v r r m n k t 2 5 0 / n k h 2 5 0 s e r i e s n k h 2 5 0 1100 1 0 1000 bloc king p aramet er symbol test conditions v alues maximum peak reverse and off - stat e leakage curren t i rrm , i drm t j = 125 c rms isol ation vo ltage v iso 50 hz , circuit to base , all terminals shorted, 25 o c ,1s v critical rate of rise of off - stat e voltage dv / dt t j = t j maximum , exponential to 67 % rated v drm v / s 3 0 5 0 0 ma 3 5 0 0 units l t(rms ) w w w . n e l l s e m i . c o m
s e m i c o n d u c t o r r o h s r o h s tr iggerin g p arame ter symbol test cond itions v alues units maximum peak gate power p gm t p 5 ms , t j = t j maximum w maximum averag e gate power p g ( av ) f = 50 hz , t j = t j maximum maximum peak gate current i gm t p 5 ms , t j = t j maximum a maximum peak negative gate voltage - v gt 10 v gate voltage v gt anode supply = 12 v , resistive load ; r a = 1 t j = 25 c i gt ma maximum gate volta ge that will not trigger v gd t j = t j maximum , 67% v drm applied 0.25 maximum gate current that will not trigger i gd ma maximum rate of rise of turned - on current di / dt t j = 25 oc ,i = 1.5a ,t 0.5 s gm r a / s therm al and mech anica l specif ica tions p aramete r symb ol test conditions v alues units juncti on operating an d storag e temperatur e range t j , t stg - 40 to 125 c maximum therma l resistance , junction to case per junction r thjc dc operation c / w typic al therma l resistance , to heatsink per module r thcs mounting surface , smooth , flat and greased mounting torque 10 % i to heatsink, m6 a mounti ng compound is recommende d and the should be rechecke d after a period of about 3 hours to allow for the of the compound . 4 to iap, m8 approximate weight 900 31.7 c style magn - a - pak tr iggerin g j j j = t j j j - v gt maximum requir ed dc to trigger a required dc current to trigger = t c thcs 2 2 0 0 v oz . g 0.02 n ell high power products p a g e 3 o f 4 0 . 1 2 n k t 2 5 0 / n k h 2 5 0 s e r i e s 1 2 n.m 1 0 3 3 200 10 w w w . n e l l s e m i . c o m
s e m i c o n d u c t o r r o h s r o h s n ell high power products n k t 2 5 0 / n k h 2 5 0 s e r i e s p a g e 4 o f 4 f i g . 1 o n - s t a t e c u r r e n t v s . v o l t a g e c h a r a c t e r i s t i c s f i g . 2 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 - c a s e ) f i g . 3 p o w e r c o n s u m p t i o n v s . a v e r a g e c u r r e n t f i g . 4 c a s e t e m p e r a t u r e v s . o n - s t a t e a v e r a g e c u r r e n t f i g . 5 o n - s t a t e s u r g e c u r r e n t v s c y c l e s 2 f i g . 6 i t c h a r a c t e r i s t i c s o n - s t a t e p e a k v o l t a g e ( v ) 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 ( c / w ) m a x i m u m p o w e r c o n s u m p t i o n ( w ) c a s e t e m p e r a t u r e ( c ) o n - s t a t e s u r g e c u r r e n t ( k a ) 2 a s 2 ( 1 0 0 0 a s ) t = 1 2 5 c j 4 3 . 5 3 2 . 5 2 1 0 0 1 0 0 0 1 0 0 0 0 0 . 1 4 0 . 1 0 0 . 0 6 0 . 0 4 0 . 0 2 0 . 0 0 1 0 . 0 1 0 . 1 1 1 0 1 4 0 1 2 0 1 0 0 8 0 6 0 4 0 2 0 0 0 8 1 0 0 9 2 0 0 3 0 0 4 0 0 5 0 0 3 0 0 2 0 0 3 0 0 2 5 0 1 0 0 0 2 0 0 5 0 1 5 0 1 0 0 7 6 5 4 3 2 1 1 0 1 0 0 c y c l e s @ 5 0 h z t i m e ( m s ) o n - s t a t e c u r r e n t ( a ) t i m e ( s ) o n - s t a t e a v e r a g e c u r r e n t ( a ) o n - s t a t e a v e r a g e c u r r e n t ( a ) 4 0 0 2 5 0 2 0 0 3 5 0 3 0 0 1 5 0 1 1 0 1 . 5 0 . 5 0 . 1 2 4 0 0 1 0 . 0 8 0 . 0 0 5 0 0 1 0 0 3 0 6 0 9 0 1 2 0 3 0 6 0 9 0 1 2 0 1 8 0 1 8 0 w w w . n e l l s e m i . c o m
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