i, o ne. 20 stern ave. springfield, new jersey 07081 u.s.a. telephone: (973) 376-2922 (212)227-6005 fax: (973) 378-8960 BC548 BC548a BC548b BC548c to-92 npn general purpose amplifier this device is designed for use as general purpose amplifiers and switches requiring collector currents to 300 ma. sourced from process 10. see pn100a for characteristics. absolute maximum ratings* ta = 25-c unless otherwise noted symbol vceo vces vebo ic tj.tstg parameter collector-emitter voltage collector-base voltage emitter-base voltage collector current - continuous operating and storage junction temperature range value 30 30 5.0 500 -55 to +150 units v v v ma c these ratings are limiting values above which the serviceability of any semiconductor device may be impaired- nqies: 1) these ratings are based on a maximum junction temperature of 150 degrees c, 2) these are steady state limits. the factory should be consulted on applications involving pulsed or low duty cycle operations. thermal characteristics ta = 25 c unless otherwise noted symbol pd r?jc roja characteristic total device dissipation derate above 25c thermal resistance, junction to case thermal resistance, junction to ambient max BC548/a/8/c 625 5.0 83.3 200 units mw mw/cc ??c/w c/w nj semi-conductors reserves the right to change test conditions, parameters limits and package dimensions without notice information famished by nj semi-conductors is believed to be both accurate and reliable at the time orgoing to press. however nj semi-conductors assumes no responsibility for any errors or omissions discovered in its use. nj semi-conductors encourages customers to verify 'hat datasheets are current before placing orders. quality semi-conductors
npn general purpose amplifier (continued) electrical characteristics ta - 25tc unless otherwise noted symbol parameter test conditions win max units off characteristics v(br)ceo v(br)cbq v(br)ces v(br)ebo icbo collector-emitter breakdown voltage collector-base breakdown voltage collector-base breakdown voltage emitter-base breakdown voltage collector cutoff current lc = 10ma, ib = 0 lc = 10(ia, ie = 0 lc = 10ua, ie = 0 le = 10|ia, i0 = 0 vcb = 30 v, ie = 0 vcb = 30 v, ie = 0, ta = +150 c 30 30 30 5.0 15 5.0 v v v v na ua on characteristics hfe vce(sat) veeion) dc current gain collector-emitter saturation voltage base-emitter on voltage vce = 5.0 v, lc = 2.0 ma 548 548a 548b 548c lc = 10ma, ib = 0.5ma lc = 100ma, ib = 5.0ma vce = 5.0 v, lc = 2.0ma vce = 5.0v, lc = 10ma 110 110 200 420 0.58 800 220 450 800 0.25 0.60 0.70 0.77 v v v v small signal characteristics hie nf small-signal current gain noise figure lc = 2.0 ma, vce = 5.0v, f = 1 .0 khz vce = 5.0v, lc = 200na, rs = 2.0ki, f= 1.0 khz, bm = 200 hz 125 900 10 db
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