s m d ty p e w w w . k e x i n . c o m . c n 1 t ra n s i s t o r s np n t r an sist o r s 2s d2537 f e a tu r e s h i g h d c c u r r e n t g a i n . h i g h e m i t t e r - b a s e v o l t a g e . l o w s a t u r a t i o n v o l t a g e . 1.base 2.collector 3.emitter 1.70 0.1 0.42 0.1 0.46 0.1 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 3 0 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 2 5 e m i t t e r - b a s e v o l t a g e v e b o 9 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 1 . 2 c o l l e c t o r c u r r e n t - p u l s e ( n o t e . 1 ) i c p 2 0 . 5 2 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 - 5 5 t o 1 5 0 v a 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 w n o t e . 1 : s i n g l e p u l s e p w = 1 0 m s 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 3 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 i b = 0 2 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 9 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 = 3 0 v , i e = 0 0 . 3 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 = 9 v , i c = 0 0 . 3 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 = 5 0 0 m a , i b = 10 m a 0 . 3 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 = 5 0 0 m a , i b = 10 m a 1 . 2 d c c u r r e n t g a i n h f e v c e = 5 v , i c = 5 0 0 m a 8 2 0 2 7 0 0 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 , i e = 0 , f = 1 m h z 2 0 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 e = - 5 0 m a , f = 1 0 0 m h z 2 0 0 m h z v v u a cl a s s i f i c a ti o n o f h f e t y p e 2 s d 2 5 3 7 - v 2 s d 2 5 3 7 - w r a n g e 8 2 0 - 1 8 0 0 1 2 0 0 - 2 7 0 0 m a r k i n g d v d w
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 2s d2537 t y p i c a l ch a r a c te r i s i ti c s collector current : i c (ma) collector to emitter voltage : v ce (v) fig.1 ground emitter output characteristics( ) 0 0.4 0.8 1.2 1.6 2.0 0.1 0.2 0.3 0.4 0. 5 0 ta = 25 c i b = 0 0.2 a 0.4 a 0.6 a 0.8 a 1.0 a 1.2 a 1.4 a 1.6 a 1.8 a 2.0 a collector current : i c (a) collector to emitter voltage : v ce (v) fig.2 ground emitter output characteristics ( ) 0 0.4 0.8 1.2 1.6 2.0 0.1 0.2 0.3 0.4 0.5 0 i b = 0 0.5ma 5.0ma 1.0ma 1.5ma 2.0ma 2.5ma 3.0ma 3.5ma 4.0ma 4.5ma ta= 25 c pulsed collector current : i c (ma) base to emitter voltage : v be (v) fig.3 ground emitter propagation characteristics 0 1000 2000 200 500 100 20 50 10 2 5 0.6 0.4 0.2 1.0 0.8 1.2 1 .4 ta = 100 c ? 25 c 25 c v ce = 5v pulsed dc current gain : h fe collector current : i c (ma) fig.4 dc current gain vs. collector current ( ) 10 20 50 100 200 500 1000 2000 5000 10000 2 5 10 20 50 100 200 500 1000 2000 ta = 25 c pulsed 1v 5v 3v v ce = 10v dc current gain : h fe collector current : i c (ma) fig.5 dc current gain vs. collector current ( ) 10 20 50 100 200 500 1000 2000 5000 10000 2 5 10 20 50 100 200 500 1000 200 0 pulsed ta = 100 c 25 c ? 25 c v ce = 5v collector saturation voltage : v be(sat) (mv) collector current : i c (ma) fig.6 collector-emitter saturation voltag e vs. collector current ( ) 1 2 5 10 20 50 100 200 500 1000 2 5 10 20 50 100 200 500 1000 2000 ta = 25 c pulsed i c /i b = 100 50 10 collector saturation voltage : v be(sat) (mv) collector current : i c (ma) fig.7 collector-emitter saturation voltag e vs. collector current ( ) 1 2 5 10 20 50 100 200 500 1000 2 5 10 20 50 100 200 500 1000 2000 pulsed ta = 100 c 25 c ? 25 c i c /i b = 50 base sat ur atio n vo l tage : v be (sa t ) (m v ) collector current : i c (ma) fig.8 base-emitter saturation voltage vs. collector current ( ) 10 20 50 100 200 500 1000 2000 5000 10000 2 5 10 20 50 100 200 500 1000 2000 ta = 25 c pulsed 50 100 i c /i b = 10 base sat ur atio n vo l tage : v be (sa t ) (m v ) collector current : i c (ma) fig.9 base-emitter saturation voltage vs. collector current ( ) 10 20 50 100 200 500 1000 2000 5000 10000 2 5 10 20 50 100 200 500 1000 2000 pulsed 50 100 i c /i b = 50 ta = ? 25 c
s m d ty p e w w w . ke x in . com . c n 3 t ran s i st or s np n t r an sist o r s 2s d2537 t y p i c a l ch a r a c te r i s i ti c s transition frequency : f t (mhz) emitter current : i e (ma) fig.10 gain bandwidth product vs. emitter current 10 20 50 100 200 500 1000 2000 5000 1 2 5 10 20 50 100 200 500 100 0 pulsed v ce = 10v ta= 25 c collector output capacitance : cob (pf) collector to base voltage : v cb (v) fig.11 collector output capacitance vs. collector-base voltage 1 2 5 10 20 50 100 200 500 1000 0.1 0.2 0.5 1 2 5 10 20 50 10 0 f= 1mhz i e = 0a ta= 25 c
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