1/2 www.rohm.com c 2010 rohm co., ltd. all rights reserved. 2010.09 - rev.c power transistor (160v , 1.5a) 2sd1918 / 2sd1857a ? features ? dimensions (unit : mm) 1) high breakdown voltage.(bv ceo= 160v) 2) low collector output capacitance. (typ. 20pf at v cb= 10v) 3) high transition frequency.(f t= 80mh z ) 4) complements the 2sb1275. ? absolute maximum ratings (ta = 25 ? c) parameter symbol v cbo v ceo v ebo i c p c tj tstg limits 160 160 5 1.5 1 150 ? 55 + 150 unit v v v a(dc) 3 ? 2 ? 1 a(pulse) w w 1 10 w(tc = 25 c) 2sd1857a 2sd1918 c c collector-base voltage collector-emitter voltage emitter-base voltage collector current collector power dissipation junction temperature storage temperature 1 pw = 200msec duty = 1/2 2 printed circuit board 1.7mm thick, collector plating 1cm 2 or larger . ? ? ? packaging specifications and h fe type 2sd1918 cpt3 qr tl 2500 2sd1857a atv pq tv2 2500 ?? denotes h fe package h fe code basic ordering unit (pieces) marking * ? electrical characteristics (ta = 25 ? c) parameter symbol min. typ. max. unit conditions bv cbo bv ceo bv ebo i cbo i ebo v ce(sat) f t cob 160 160 5 ? ? ? 120 ? ? ? ? ? ? ? ? ? 80 20 ? ? ? 1 1 2 390 ? ? v v v a a v ? h fe 82 ? 270 ? 2sd1918 2sd1857a mhz pf i c = 50 a i c = 1ma i e = 50 a v cb = 120v v eb = 4v i c /i b = 1a/0.1a v be(sat) ? ? 1.5 v i c /i b = 1a/0.1a v ce /i c = 5v/0.1a v ce = 5v , i e = ? 0.1a , f = 30mhz v cb = 10v , i e = 0a , f = 1mhz collector-base breakdown voltage collector-emitter breakdown voltage emitter-base breakdown voltage collector cutoff current emitter cutoff current collector-emitter saturation voltage dc current transfer ratio transition frequency output capacitance base-emitter saturation voltage measured using pulse current. ? ? ? eiaj : sc-63 rohm : cpt3 rohm : atv 2sd1857a 2sd1918 0.45 (2) collector 1.05 (3) base taping specifications (1) emitter 0.5 ( 1 ) 0.65max. 2.54 ( 2 ) 2.54 ( 3 ) 6.8 1.0 14.5 0.9 4.4 2.5 2.3 0.5 1.0 0.5 9.5 2.5 0.8min. 1.5 6.5 2.3 ( 2 ) ( 3 ) c0.5 0.65 0.9 ( 1 ) 0.75 2.3 0.9 1.5 5.5 (3) emitter(source) (2) collector(drain) (1) base(gate) 5.1
2/2 www.rohm.com c 2010 rohm co., ltd. all rights reserved. 2010.09 - rev.c data sheet 2sd1918 / 2sd1857a ? electrical characteristic curves ta = 25 c 012345 0 0.2 0.4 0.6 0.8 1.0 collector to emitter voltage : v ce (v) collector current : i c (a) f ig.1 ground emitter output characteristi cs 10ma 9ma 7ma 6ma 5ma 4ma 3ma 2ma i b = 1ma 8ma v ce =5v base to emitter voltage : v be (v) f ig.2 ground emitter propagation characteristi cs collector current : i c (a) 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 10 0.02 0.05 0.1 0.2 0.5 1 2 5 0.01 ta = 100 c ta = 25 c ta = ? 25 c ta = 25 c 0.01 0.02 0.05 0.1 0.2 0.5 1 2 5 10 1000 500 200 100 20 50 10 1 2 5 collector current : i c (a) dc current gain : h fe fig.3 dc current gain vs. collector current ( ) v ce = 10v 5v v ce = 5v 0.01 0.02 0.05 0.1 0.2 0.5 1 2 5 10 1000 500 200 100 20 50 10 1 2 5 collector current : i c (a) dc current gain : h fe fig.4 dc current gain vs. collector current ( ? ) ta = 100 c 25 c ? 25 c ta = 25 c 0.01 0.02 0.05 0.1 0.2 0.5 1 2 5 10 10 5 2 1 0.2 0.5 0.1 0.01 0.02 0.05 collector current : i c (a) collector saturation voltage : v ce(sat) (v ) f ig.5 collector-emitter saturation voltag e vs. collector current i c /i b = 20 10 i c /i b = 10 0.01 0.02 0.05 0.1 0.2 0.5 1 2 5 10 10 5 2 1 0.2 0.5 0.1 0.01 0.02 0.05 collector current : i c (a) collector saturation voltage : v ce(sat) ( v) base saturation voltage : v be(sat) (v) f ig.6 collector-emitter saturation voltage base-emitter saturation voltage vs. collector curre nt ta = ? 25 c 25 c ? 25 c v be(sat) v ce(sat) 100 c v ce = 5v ? 1 ? 2 ? 5 ? 10 ? 20 ? 50 ? 100 ? 200 ? 500 ? 1000 1000 500 200 100 20 50 10 1 2 5 emitter current : i e (ma) transition frequency : f t (mhz) f ig.7 gain bandwidth products vs. emitter curre nt ta = 25 c f = 1mhz i e = 0a 0.1 0.2 0.5 1 2 5 10 20 50 10 0 1000 500 200 100 20 50 10 1 2 5 collector to base voltage : v cb (v ) collector output capacitance : c ob (p f) fig.8 collector output capacitance vs. collector-base voltage ta = 25 c ta = 25 c ? single nonrepetitive pulse collector to emitter voltage : v ce (v ) fig.9 safe operating area (2sd221 1) collector current : i c (a) 0.1 0.2 0.5 2 5 10 20 50 100 200 500 1000 10 5 2 1 200m 500m 100m 10m 2m 1m 5m 20m 50m recommended land ic max (pulse ? ) pw=100ms ? pw=10ms ? dc
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