1/3 www.rohm.com c 2009 rohm co., ltd. all rights reserved. 2009.12 - rev.c high-frequency amplifier transistor (20v, 50ma, 1.5ghz) 2sc5661 / 2sc4725 / 2sc4082 / 2sc3837k ? features 1) high transition frequency. (typ. f t = 1.5ghz) 2) small rbb ? cc and high gain. (typ. 6ps) 3) small nf. ? packaging specifications and h fe type 2sc4725 emt3 np ac ? tl 3000 2sc5661 vmt3 np ac ? t2l 8000 2sc4082 umt3 np 1c ? t106 3000 2sc3837k smt3 np ac ? t146 3000 ? denotes h fe package h fe marking code basic ordering unit (pieces) ? absolute maximum ratings (ta=25 ? c) parameter symbol v cbo v ceo v ebo i c p c tj tstg limits 3020 3 50 0.2 150 55 to + 150 unit vv v ma 0.15 2sc4082, 2sc3837k 2sc5661, 2sc4725 w c c collector-base voltagecollector-emitter voltage emitter-base voltage collector current collector power dissipation junction temperature storage temperature ? dimensions (unit : mm) ( 2 ) ( 1 ) 2.8 1.6 0.4 ( 3 ) 2.9 1.9 0.95 0.95 0.8 0.15 0.3min. 1.1 (2) base(3) collector (1) emitter (3) collector (1) emitter(2) base (3) collector (1) emitter(2) base each lead has same dimensionseach lead has same dimensions 2sc47252sc4082 2sc3837k 2sc5661 rohm : vmt3rohm : emt3 eiaj : sc-75a rohm : umt3 eiaj : sc-70 rohm : smt3 eiaj : sc-59 (1) base(2) emitter (3) collector ? electrical characteristics (ta=25 ? c) parameter symbol min. typ. max. unit conditions bv cbo bv ceo bv ebo i cbo i ebo h fe f t cob rbb' cc nf 3020 3 82 600 1500 0.9 0.50.5 180 1.5 vv v a a mhz pf i c = 10 a i c = 1ma i e = 10 a v cb = 15v v eb = 2v v ce(sat) 0.5 v i c /i b = 20ma/4ma v ce /i c = 10v/10ma v ce = 10v , i e = 10ma , f = 200mhz v cb = 10v , i e = 0a , f = 1mhz v cb = 10v , i c = 10ma , f = 31.8mhz v ce = 12v , i c = 2ma , f = 200mhz , rg = 50 61 3p s 4.5 db collector-base breakdown voltagecollector-emitter breakdown voltage emitter-base breakdown voltage collector cutoff current emitter cutoff current dc current transfer ratio transition frequency output capacitance collector-emitter saturation voltagecollector-base time constant noise factor this product might cause chip aging and breakdown under the large electrified environment. please consider to design esd protection circuit. sot-416 downloaded from: http:///
2/3 www.rohm.com c 2009 rohm co., ltd. all rights reserved. 2009.12 - rev.c data sheet 2sc5661 / 2sc4725 / 2sc4082 / 2sc3837k ? electrical characteristic curves 0.1 0.2 0.5 1 2 5 10 20 50 10 collector current : i c (ma) fig.1 dc current gain vs. collector current dc current transfer ratio :h fe 100 20 50 200 500 ta = 25 c v ce = 10v 0.1 0.2 0.5 1 2 5 10 20 5 0 10 collector current : i c (ma) fig.2 collector-emitter saturation voltag e vs. collector current collector saturation voltage :v ce(sat) (mv) 100 20 50 200 500 ta = 25 c i c /i b = 5 0.1 0.2 0.5 1 2 5 10 20 50 0.1 collector to base voltage : v cb (v) fig.3 capacitance vs. reverse bias voltage output capacitance :c ob (pf) feedback capacitance :c re (pf) 1.0 0.2 0.5 2.0 5.0 ta = 25 c f = 1mhz i e = 0a cob cre 0.1 0.2 0.5 1 2 5 10 20 50 100 emitter current : i e (ma) fig.4 gain bandwidth product vs. emitter current transition frequency : f t (mhz) 1000 200 500 2000 5000 ta = 25 c v ce = 10v 0.1 0.2 0.5 1 2 5 10 20 5 0 1 collector current : i c (ma) fig.5 collector to base time constanc e vs. collector current collector to base time constant : c c rbb' (ps) 10 2 5 20 50 ta = 25 c v ce = 10v f = 31.8mhz 0.1 0.2 0.5 1 2 5 1 0 0 frequency : f (ghz) fig.6 insertion gain vs. frequency insertion gain : is 21el 2 (db) 5 10 15 20 25 ta = 25 c v ce = 10v i c = 10ma collector current : ic (ma) fig.7 insertion gain vs. collector curre nt insertion gain : is 21el 2 (db) 0.5 1 2 5 10 20 5 0 0 5 10 15 20 25 ta = 25 c v ce = 12v f = 200mhz 02 4 6 81 01 2 0 collector to emitter voltage : v ce ( v) fig.8 insertion gain vs. collector voltage insertion gain : is 21el 2 (db) 5 10 15 20 25 30 ta = 25 c i c = 2ma f = 200mhz 0.1 0.2 0.5 1 2 5 10 20 5 0 0 collector current : i c (ma) fig.9 noise factor vs. collector curre nt noise figure : nf(db) 10 20 ta = 25 c v ce = 12v f = 200mhz downloaded from: http:///
3/3 www.rohm.com c 2009 rohm co., ltd. all rights reserved. 2009.12 - rev.c data sheet 2sc5661 / 2sc4725 / 2sc4082 / 2sc3837k 02 4681 01 2 0 collector to emitter voltage : v ce ( v) fig.10 noise factor vs. collector voltage noise figure : nf(db) 15 5 10 2520 30 ta = 25 c i c = 2ma f = 200mhz downloaded from: http:///
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