ksd-t0a035-000 1 BF422 npn silicon transistor pin connection e c b c b e to-92 descriptions ? high voltage application ? monitor equipment application features ? collector-emitter voltage : v ceo =250v ? complementary pair with bf423 ordering information type no. marking package code BF422 BF422 to-92 absolute maximum ratings characteristic symbol ratings unit collector-base voltage v cbo 250 v collector-emitter voltage v ceo 250 v emitter-base v ebo 5 v collector current i c 100 ma collector dissipation p c 625 mw junction temperature t j 150 c storage temperature t stg -55~150 c electrical characteristics characteristic symbol test condition min. typ. max. unit collector-emitter breakdown voltage bv ceo i c =1ma, i b =0 250 - - v collector cut-off current i cbo v cb =200v, i e =0 - - 100 na emitter cut-off current i ebo v eb =5v, i c =0 - - 100 na dc current gain h fe v ce =20v, i c =25ma 50 - - - collector-emitter saturation voltage v ce(sat) i c =30ma, i b =5ma - - 0.6 v transistor frequency f t v ce =20v, i c =10ma, f=100mhz - 100 - mhz collector output capacitance c ob v cb =20v, i e =0, f=1mhz - 1 - pf
ksd-t0a035-000 2 BF422 fig. 2 v ce(sat) - i c electrical characteristic curves fig. 4 c ob - v r fig. 3 f t - i c fig. 1 h fe - i c
ksd-t0a035-000 3 BF422 outline dimension
ksd-t0a035-000 4 BF422 the auk corp. products are intended for the use as components in general electronic equipment (office and communication e quipment, measuring equipment, home appliance, etc.). please make sure that you consult with us before you use these auk corp. products in equipments which require high quality and / or reliability, and in equipments which could have major impact to the welfare of hum an life(atomic energy control, airplane, spaceship, transportation, co mbustion control, all types of safety device, etc.). auk corp. cannot accept liability to any damage which may occur in case these auk corp. products were used in the mentioned equipm ents without prior consultation with auk corp.. specifications mentioned in this publicati on are subject to change without notice.
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