2sc5661 / 2sc4725 / 2sc4082 / 2SC3837K transistors 1/1 high-frequency amplifier transistor (18v, 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. ! ! ! ! absolute maximum ratings (ta=25 c) parameter symbol v cbo v ceo v ebo i c p c tj tstg limits 30 18 3 50 0.2 150 ? 55~ + 150 unit v v v ma 0.15 2sc4082, 2SC3837K 2sc5661, 2sc4725 w c c collector-base voltage collector-emitter voltage emitter-base voltage collector current collector power dissipation junction temperature storage temperature ! ! ! ! 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) ! ! ! ! external dimensions (units : mm) (2) base (3) collector (1) emitter (3) collector (1) emitter (2) base (3) collector (1) emitter (2) base each lead has same dimensions each lead has same dimensions 0.7 0.15 0.1min. 0.55 0to0.1 0.2 1.6 1.6 1.0 0.3 0.8 ( 2 ) 0.5 0.5 ( 3 ) 0.2 ( 1 ) 2.0 1.25 2.1 0.3 0.15 0to0.1 0.1to0.4 ( 3 ) 0.9 0.7 0.2 0.65 ( 2 ) 1.3 ( 1 ) 0.65 0.8 0.15 0to0.1 0.3to0.6 1.1 ( 2 ) ( 1 ) 2.8 1.6 0.4 ( 3 ) 2.9 1.9 0.95 0.95 2sc4725 2sc4082 2SC3837K 2sc5661 rohm : vmt3 rohm : emt3 eiaj : sc-75a rohm : umt3 eiaj : sc-70 rohm : smt3 eiaj : sc-59 (1) base (2) emitter (3) collector 0to0.1 (3) 0.32 0.8 1.2 0.13 0.5 0.22 0.4 0.4 1.2 0.8 0.2 0.15max. 0.2 ( 2 ) ( 1 ) ! ! ! ! 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 30 18 3 ? ? 56 600 ? ? ? ? ? ? ? 1500 0.9 ? ? ? 0.5 0.5 180 ? 1.5 v v v a a ? mhz pf i c = 10 a i c = 1ma i e = 10 a v cb = 10v v eb = 2v v ce(sat) ?? 0.5 v i c /i b = 20ma/4ma v ce /i c = 10v/10ma v cb = 10v , i c = 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 ? ? 613ps ? 4.5 ? db collector-base breakdown voltage collector-emitter breakdown voltage emitter-base breakdown voltage collector cutoff current emitter cutoff current dc current transfer ratio transition frequency output capacitance collector-emitter saturation voltage collector-base time constant noise factor
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