2n4125 pnp general purpose amplifier 2n4125 this device is designed for use as general purpose amplifiers and switches requiring collector currents of 10 m a to 100 ma. absolute maximum ratings* ta = 25c unless otherwise noted * these ratings are limiting values above which the serviceability of any semiconductor device may be impaired. notes : 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 = 25c unless otherwise noted symbol parameter value units v ceo collector-emitter voltage 30 v v cbo collector-base voltage 30 v v ebo emitter-base voltage 4.0 v i c collector current - continuous 200 ma t j , t stg operating and storage junction temperature range -55 to +150 c symbol characteristic max units 2n4125 p d total device dissipation derate above 25 c 625 5.0 mw mw/ c r q jc thermal resistance, junction to case 83.3 c/w r q ja thermal resistance, junction to ambient 200 c/w c b e to-92 ? 2 00 1 fairchild semiconductor co r po rati on 2 n 41 25 , re v a
2n4125 pnp general purpose amplifier (continued) electrical characteristics ta = 25c unless otherwise noted off characteristics symbol parameter test conditions min max units v (br)ceo collector-emitter breakdown voltage* i c = 1.0 ma, i b = 0 30 v v (br)cbo collector-base breakdown voltage i c = 10 m a, i e = 0 30 v v (br)ebo emitter-base breakdown voltage i e = 10 m a, i c = 0 4.0 v i cbo collector-cutoff current v cb = 20 v, i e = 0 50 na i ebo emitter-cutoff current v eb = 3.0 v, i c = 0 50 na on characteristics* h fe dc current gain v ce = 1.0 v, i c = 2.0 ma v ce = 1.0 v, i c = 50 ma 50 25 150 v ce( sat ) collector-emitter saturation voltage i c = 50 ma, i b = 5.0 ma 0.4 v v be( sat ) base-emitter saturation voltage i c = 50 ma, i b = 5.0 ma 0.95 v small signal characteristics c ob output capacitance v cb = 5.0 v, f = 100 khz 4.5 pf c ib input capacitance v be = 0.5 v, f = 100 khz 10 pf h fe small-signal current gain i c = 2.0 ma, v ce = 10 v, f = 1.0 khz i c = 10 ma, v ce = 20 v, f = 100 mhz 50 2.0 200 nf noise figure v ce = 5.0 v, i c = 100 m a, r s = 1.0 k w , f = 10hz to 15.7 khz, 5.0 db * pulse test: pulse width 300 m s, duty cycle 2.0%
2n 412 5 typical characteristics common-base open circuit input and output capacitance vs reverse bias voltage 0.1 1 10 0 2 4 6 8 10 reverse bias voltage (v) capacitance (pf) c obo c ibo pnp general purpose amplifier (continued) ty pical pulsed current gain vs collector current 0. 1 0 . 2 0. 5 1 2 5 10 20 50 1 0 0 50 100 150 200 250 i - collector curre nt (ma) h - typical pulsed cu rrent gain c fe 125 c 25 c - 40 c v = 1 .0 v ce coll ector -em itt er sa tur ati on voltage vs coll ect or cur re nt 110100200 0 0.05 0. 1 0.15 0. 2 0.25 0. 3 i - collector current (ma) v - collector emitter voltage (v) c ce s a t 25 c - 40 c 125 c = 10 bas e-emitt er saturation voltage vs collect or curre nt 110100200 0 0. 2 0. 4 0. 6 0. 8 1 i - collector current (ma) v - base emitter voltage (v) c be s a t = 10 25 c - 40 c 125 c bas e e mi tter o n voltage vs collector current 0.1 1 10 25 0 0. 2 0. 4 0. 6 0. 8 1 i - collector current (ma) v - base emitter on voltage (v) c be ( o n ) v = 1v ce 25 c - 40 c 125 c collector-cutoff current vs ambient temperature 25 50 75 100 125 0.01 0. 1 1 10 10 0 t - a mbi e n t t emp er at ur e ( c) i - c ol le ct o r cu rr en t (n a) a cbo v = 25v cb
power dissipation vs ambient temperature 0 25 50 75 100 125 150 0 0.25 0.5 0.75 1 temperature ( c) p - power dissipation (w) d o sot-223 sot-23 to-92 typical characteristics (continued) noise figure vs frequency 0.1 1 10 100 0 1 2 3 4 5 6 f - frequency (khz) nf - noise figure (db) i = 100 a, r = 2 00 ? c v = 5.0v ce s i = 100 a, r = 2.0 k ? c s i = 1.0 ma, r = 200 ? c s noise figure vs source resistance 0.1 1 10 100 0 2 4 6 8 10 12 r - source resistance ( ) nf - noise figure (db) k ? i = 100 a c v = 5.0v f = 1.0 khz ce i = 1.0 ma c s switching times vs collector current 1 10 100 1 10 100 500 i - collector current (ma) time (ns) i = i = t r t s b1 c b2 i c 10 t f t d turn on and turn off times vs collector current 1 1 0 100 1 10 100 500 i - collector current (ma) time (ns) i = i = t off b1 b2 i c 10 t on v = 0.5v be(off) t i = on t off b1 i c 10 2n 4125 pnp general purpose amplifier (continued)
2n 4125 typical characteristics (continued) pnp general purpose amplifier (continued) input impedance 0.1 1 10 0.1 1 10 i - collector current (ma) h - input impedance (k ) v = 10 v ce c ie f = 1.0 khz ? output admittance 0.1 1 10 10 100 1000 i - collector current (ma) h - output admittance ( mhos) v = 10 v ce c oe f = 1.0 khz current gain 0.1 1 10 10 20 50 100 200 500 1000 i - collector current (ma) h - current gain v = 10 v ce c fe f = 1.0 khz voltage feedback ratio 0.1 1 10 1 10 100 i - collector current (ma) h - voltage feedback ratio (x10 ) c re _ 4
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careers | sitema go datasheets, samples, buy technical information applications design center support company investors my f a home >> find products >> product status/pricing/packaging 2n4125 pnp general purpose amplifier general description back to top contents ? general description ? product status/pricing/packaging ? order samples ? models ? qualification support this device is designed for use as general purpose amplifiers and switches requiring collector currents of 10 a to 100 ma. datasheet download this datasheet e - mail this datasheet this page print version product product status pb-free status pricing* package type leads packing method package marking convention** 2n4125bu full production $0.025 to - 92 3 bulk line 1: 2n line 2: 4125 line 3: -&3 2n4125ta full production $0.025 to - 92 3 ammo line 1: 2n line 2: 4125 line 3: -&3 2n4125tar full production $0.025 to - 92 3 ammo line 1: 2n line 2: 4125 line 3: -&3 2n4125tf full production $0.025 to - 92 3 tape reel line 1: 2n line 2: 4125 line 3: -&3 related links request samples how to order products product change notices (pcns) support sales support quality and reliability design cente r pa g e 1 of 3 product folder - fairchild p/n 2n4125 - pnp general pur p ose am p lifie r 16-au g -2007 mhtml:file://c:\temp\2n4125tar.mht
back to top models back to top qualification support click on a product for detailed qualification data back to top 2n4125tfr full production $0.025 to - 92 3 tape reel line 1: 2n line 2: 4125 line 3: -&3 * fairchild 1,000 piece budgetary pricing ** a sample button will appear if the part is available through fa irchild's on-line samples program. if there is no sample butt on, please contact a fairchild distributo r to obtain samples indicates product with pb -free second-level interconne ct. for more information click here. package marking information for product 2n4125 is available. click here for more information . package & leads condition temperature range software version revision date pspice to-92-3 electrical 25c n/a n/a product 2n4125bu 2n4125ta 2n4125tar 2n4125tf 2n4125tfr ? 2007 fairchild semiconductor pa g e 2 of 3 product folder - fairchild p/n 2n4125 - pnp general pur p ose am p lifie r 16-au g -2007 mhtml:file://c:\temp\2n4125tar.mht
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