s m d ty p e w w w . k e x i n . c o m . c n 1 t r a n s i s t o r s feat ur es hi gh br eak dow n v ol tage s m al l output c apac i tanc e. com pl em entar y to 2s a 1257-hf a bs olut e max imum r at ings ta = 25 p ar am eter s y m bol rati ng uni t col l ec tor - b as e v ol tage v c b o 180 col l ec tor - e m i tter v ol tage v c e o 160 e m i tter - b as e v ol tage v e b o 5 col l ec tor cur r ent - conti nuous i c 80 col l ec tor cur r ent - p ul s e i cp 150 col l ec tor p ow er di s s i pati on p c 200 m w j unc ti on t em per atur e t j 125 s tor age t em per atur e range t st g - 55 to 125 v m a e lec t r ic al c har ac t er is t ic s ta = 25 c las s if ic at ion of h fe p a r a m e t e r s y m b o l t e s t c o n d i t i o n s m i n t y p m a x u n i t c o l l e c t o r - b a s e b r e a k d o w n v o l t a g e v c b o i c = 1 0 0 a i e = 0 1 8 0 c o l l e c t o r - e m i t t e r b r e a k d o w n v o l t a g e v c e o i c = 1 m a r b e = 1 6 0 e m i t t e r - b a s e b r e a k d o w n v o l t a g e v e b o i e = 1 0 0 a i c = 0 5 c o l l e c t o r - b a s e c u t - o f f c u r r e n t i c b o v c b = 1 2 0 v , i e = 0 0 . 1 e m i t t e r c u t - o f f c u r r e n t i e b o v e b = 4 v , i c = 0 0 . 1 c o l l e c t o r - e m i t t e r s a t u r a t i o n v o l t a g e v c e ( sa t ) i c = 3 0 m a , i b = 3 m a 0 . 7 b a s e - e m i t t e r s a t u r a t i o n v o l t a g e v b e ( sa t ) i c = 30 m a , i b = 3 m a 1 . 2 b a s e - e m i t t e r v o l t a g e v b e ) v c e = 5 v , i c = 1 0 m a 1 . 5 d c c u r r e n t g a i n h f e v c e = 5 v , i c = 1 0 m a 6 0 2 7 0 t u r n - o n t i m e t o n 0 . 1 8 s t o r a g e t i m e t st g 1 f a l l t i m e t f 0 . 2 c o l l e c t o r o u t p u t c a p a c i t a n c e c o b v c b = 1 0 v , f = 1 0 m h z 2 2 . 8 p f t r a n s i t i o n f r e q u e n c y f t v c e = 1 0 v , i c = 1 0 m a 1 5 0 m h z v u a s e e s p e c i f i e d t e s t c i r c u i t u s v p b ? f r e e p a c k a g e m a y b e a v a i l a b l e . t h e g ? s u f f i x d e n o t e s a p b ? f r e e l e a d f i n i s h t y p e 2 s c 3 1 4 1 - k 3 - h f 2 s c 3 1 4 1 - k 4 - h f 2 s c 3 1 4 1 - k 5 - h f r a n g e 6 0 - 1 2 0 9 0 - 1 8 0 1 3 5 - 2 7 0 m a r k i n g k 3 f k 4 f k 5 f np n t r an sist o r s 2s c3143- hf 0.4 +0.1 -0.1 2.9 +0.2 -0.1 0.95 +0.1 -0.1 1.9 +0.1 -0.2 2.8 +0.2 -0.1 +0.2 -0.1 1 2 3 unit: mm sot-23-3 1 . 6 1. base 2. emitter 3. collector 0.4 0.15 +0.02 -0.02 0.55 0-0.1 0.68 +0.1 -0.1 1.1 +0.2 -0.1
s m d ty p e w w w . k e x i n . c o m . c n 2 t r a n s i s t o r s ty pic al c har ac t er is it ic s pw=20s d .c . 1% input 20v 50? r b 2k? i b1 i b2 100f 470f - -5v 10i b1 =- -10i b2 =i c =10ma v r + + r l (for pnp, the polarity is reversed.) output s w i t c hing t i m e t es t c i r c u i t i c - - v ce 10 12 6 8 2 4 0 0 10 20 30 40 50 i b =0 0.5ma 0.4ma 0.3m a 0.2ma 0.1ma i c - - v be 1.0 1.2 0.6 0.8 0.2 0.4 0 0 10 20 30 40 50 v ce =5v collector current , i c ? ma collector-to-emitter voltage , v ce ? v collector current , i c ? ma base-to-emitter voltage , v be ? v 1.0 3 3 2 5 7 10 7 100 5 2 7 100 10 5 5 3 2 3 2 f t - - i c v ce =10v h fe - - i c 0.1 1.0 3 3 2 5 2 3 5 10 100 5 2 2 7 100 10 5 7 1000 5 3 2 3 2 v ce =5v dc current gain, h fe collector current , i c ? ma gain-bandwidth product , f t ? mhz collector current , i c ? ma np n t r an sist o r s 2s c3143- hf
s m d ty p e w w w . k e x i n . c o m . c n 3 t ra n s i s t o r s ty pic al c har ac t er is it ic s v ce (sat) - - i c 5 7 10 2 1.0 3 2 7 5 3 100 0.1 7 7 1.0 5 3 5 3 2 i c / i b = 10 f= 1mhz 7 10 2 3 1.0 5 3 2 7 5 100 2 1.0 7 10 5 3 3 2 7 5 2 cob - - v cb output capacitance, co b ? pf v , e g a t l o v e s a b - o t - r o t c e l l o c cb - - v collector current , i c ? ma collector-to-emitter saturation voltage , v ce (sat ) ? v v be (sat) - - i c 5 7 10 2 1.0 3 2 7 5 3 100 1.0 7 7 10 5 3 5 3 2 i c / i b = 10 collector current , i c ? ma collector-to-base saturation voltage , v be (sat) ? v 0 20 40 60 80 100 120 140 0 50 100 250 150 200 300 p c - - t a collector dissipation , p c ? mw ambient temperature , ta ? ?c np n t r an sist o r s 2s c3143- hf
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