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 np n t r an sist o r s bf s 17 ( k fs 1 7 ) f e a tu r e s c o l l e c t o r c u r r e n t c a p a b i l i t y i c = 2 5 m a c o l l e c t o r e m i t t e r v o l t a g e v c e o = 1 5 v a b s o l u te m a x i m u m ra ti n g s t a = 2 5 p a r a m e t e r s y m b o l r a t i n g u n i t c o l l e c t o r - b a s e v o l t a g e v c b o 2 5 c o l l e c t o r - e m i t t e r v o l t a g e v c e o 1 5 e m i t t e r - b a s e v o l t a g e v e b o 2 . 5 c o l l e c t o r c u r r e n t - c o n t i n u o u s i c 2 5 c o l l e c t o r c u r r e n t - p u l s e i c p 5 0 c o l l e c t o r p o w e r d i s s i p a t i o n p c 3 0 0 m w t h e r m a l r e s i s t a n c e f r o m j u n c t i o n t o s o l d e r i n g p o i n t r js 2 6 0 / w j u n c t i o n t e m p e r a t u r e t j 1 5 0 s t o r a g e t e m p e r a t u r e r a n g e t st g - 6 5 t o 1 5 0 v m a e l e c tr i c a l ch a r a c te r i s ti c s t a = 2 5 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 2 5 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 i b = 0 1 5 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 2 . 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 = 2 5 v , i e = 0 1 0 0 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 = 2 . 5 v , i c = 0 1 0 0 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 ( s a t ) i c = 25 m a , i b = 2.5 m a 0 . 5 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 =25 ma, i b =2.5ma 1 . 2 v c e = 1 v , i c = 2 m a 2 5 9 0 v c e = 1 v , i c = 2 5 m a 2 5 9 0 c o l l e c t o r c a p a c i t a n c e c c v c b = 1 0 v , i e = i e = 0 , f = 1 m h z 1 . 5 e m i t t e r c a p a c i t a n c e c e v e b = 0 . 5 v , i c = i c = 0 , f = 1 m h z 2 f e e d b a c k c a p a c i t a n c e c r e v c e = 5 v , i c = 1 m a , f = 1 m h z 0 . 6 5 n o i s e f i g u r e n f v c e = 5 v , i c = 2 m a , r s = 5 0 , f = 5 0 0 m h z 4 . 5 d b v c e = 5 v , i c = 2 m a , f = 5 0 0 m h z 1 v c e = 5 v , i c = 25 m a , f = 5 0 0 m h z 1 . 6 p f t r a n s i t i o n f r e q u e n c y f t g h z v v n a d c c u r r e n t g a i n h f e m a r k i n g m a r k i n g e 1 * 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 exi n . co m . c n 2 t ra n s i s t o r s np n t r an sist o r s bf s 17 ( k fs 1 7 ) t y p i c a l ch a r a c te r i s i ti c s fig.2 dc current gain as a function of collector current. v ce = 1 v; t j = 25 c. 0 100 50 0 0 3 0 1 20 i c (ma) h fe fig.3 collector capacitance as a function of collector-base voltage. i e = i e = 0; f = 1 mhz; t j = 25 c. 0 2.0 0 1.6 30 1.2 0.4 c c (pf) v cb (v) 10 0.8 20 fig.4 transition frequency as a function of collector current. v ce = 5 v; f = 500 mhz; t j = 25 c. 0 10 20 30 2 0 1 i c (ma) f t (ghz) fig.5 minimum noise figure as a function of collector current. v ce = 5 v; r s = 50 ?; f = 500 mhz; t j = 25 c. 0 10 0 12 4 8 f 5 16 20 i c (ma)
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