j.ii.u <^>.mi-l.onauctoi , line. 20 stern ave. springfield, new jersey 07081 u.s.a. 2n1924, 2N1925, and 2n1926 are pnp germanium alloy transistors for high voltage general purpose low frequency applications. excellent reliability in use is assured by inclusion of a 100% hermeticity test* and military environmental testing. telephone: (973) 376-2922 (212) 227-6005 fax: (973) 376-8960 i 1 ?m germanium types reliable circuit design is assured by a unique reliability-index, and high temperature icno and low temperature forward current gain 1000 hour life end points. the high value of reliability-index is achieved by exacting control of parts and processes, and getter encapsulation, to prevent junction contamination. absolute maximum ratings (25c) voltages collector to base vcho collector to emitter (r,,k < 10k) voel, collector to emitter (r,,k g 10k) vcex (vi1e = +1.5v) emitter to base vei,(. collector current (rms) i('m temperatures storage tatc operating tj lead temperature, 1/16" 1/32" from case for 10 seconds maximum total transistor dissipation "'!' - 60 volts ? 40 volts - 50 volts - 25 volts - 500 ma - 65 to + 100c -65to+ 85c 260c 225 mw dimensions within jedec outline to-5 ?en it this .-one is controlled for auto rralic handling the variation in ktual diameter within this lone shall not eiceed 010. hen j: measmed trom ma> diameter -' ihe actual device. ?en i: the specified lead diameter ap- plies ;n the zone between 050 and 250 item the base seat. between 250 and s mail teads may be insetted, ftilhcul dama electrical characteristics (ta-25c) test dc chmr?ci?h.?tio? subgroup i collector to base voltage collector to emitter voltage collector to emitter voltage reach-through voltage emitter cutoff current subgroup 11 collector cutoff current forward current transfer ratio forward current transfer ratio subgroup iii base input voltage, common emitter collector saturation voltage subgroup i ac forward current traiufet ratio input impedance ' . ? output admittance reverse voltage transfer ratio^ -- subgroup 11 cutoff frequency., output capacity -. conditions i,, = -200,* r??=ioic ohms. ic?- 600 ,j v??= + 1.5v, rne= 10k ohms, ic= ? 50jui v? = -25v vc. = -45v !<. a? 20ma, vr?= ? iv (note 1) fc ?-100m?,v?=-lv i,,. =-20ma,vc.= -lv lu 3?20 ma. in as shown : ? i. = lma,v,,= -5v,f=lkc i. =. lnm,vr,=-5v,f=lkc 1. =. 1 ma, v,.,?-5v, f=lkc i. = 1 ma, v,...=-5v, f=lkc 1. -lma,vc.--sv ' : i. ? 1 ma,vc,= -5v, l.lmc symbol. v,,., vcu vcm vrt i,,o irm hr. hr. v,. vr.(sat) ei. .?- . h? h. h. hr. fu? '-, c^ note f: a minimum of 95% of the hrk dutribution u normally contained between values in parenlhntt. units volts volts volts volts r*? f*a volts volts ma ohms (. max. -60 -40 , .. ?:' -50 - 50 ? 3 - 10 -4 - 10 53(59) 70 (80)90 47 60 -.190 -.230 -.290 -.053 -.085 -.110 -1.00 , 44 . m 88 1200 ? 2000 3200 20 35 65 3.0 ?.? 9.0 1.3 . 3ji ... . ?:,'?? m 30 ... "-:j . -i , ' "? '? . ' ? ~ "?.'. ' ' -,' ?-. '-'. '. 2n192s min. tv"-. max. -60 , -40 -50 ( -50 -3 -lo| -4 -10) 72(80) 85 (1io)i2i( 65 80 \0 -.2j5 -.280) -.060 -.090 -.110 -0.67 ) 60 80 120) 1500 2500 4200' 23 40 70j 4.0 7.0 10.0 ) 1j 4.0 i w ? . ? so - -? aol 1% 0.0% 1% 9 34t uw insp. lkvbl. 11 11 l6 l6 :,--,''." ? ? reliability specifications tbst subgroup 1 , physical inspection appearance lead soldcrabilily subgroup ii temperature cycling thermal shock subgroup iii shock, opcralinf constant acceleration vibration fatigue vibration, variable frequency . '. , ' subgroup iv lead fatigue end points (subgroup ii and ui> collector cutoff current forward current transfer ratio' 2n1924 2ni923 ^-?' ;?;:;? 2ni92? ' ??--?- conditions 1 mil-s-19500 mil-s-19500 -6stolooc,iocydev 0losrc,5cycle? mil-s-19500 1000 q. 3 blow, each orientation of appro*. o.g msec. , 10.000 o ' ~ 100 ? 35 | 20o. * w ' ( ?- * * mil-s-19500.' ? " > v b 30v,ta = 25c l,; = ? 20ma, vrk= ? iv, ta = 25c t '?' ' ' ?' ? % s*mn.lno aol. uivn. 25 ~ l5 1.0 l8 1.0 ??/'?? ld 4.0 l5 40 ? it 4.0 1-5 ?ym>? unlm !??* il-wi p* h,? hvk mb*. m?)u -15 30 71 48 iuo 65 133 1 1 t1stv- . --'?".- subgroup v "" 1 k 1 storage life. ; : : ^ f (1000houn>: ;; subgroup vi ? ;?? '- intermittent power lit* r- : (looohoun) -- -:- end points (subgroup vj) reliabiuty-indel : collector cutoff current forward current transfer ratio 2ni924 2N1925 2n1926 end points (subgroup v and vi) collector cutoff current forward current transfer hatto- 2n1924 2ni925 2ni926 conditions m1l-s- 19500 method b 100*-(-10'c.-oc ? . m1l-s- 19500 method b 225mw,t. - 23* 4c vc, - - 22 .sv, 1. - ? 10 ma on 502 min. off i02 min based on 23c forward current transfer ratio, subgroup vi vr,=-10r,tt-+70'lc i,- =-20ma,v?-l?, t1 = -55'2'c i vcn = ? 30v. ta ? 25 c lc =.-20ma,v,.,?-!v, t*=25c ???' maximum pail.uiw mat!, i (ta percent pe? ifjoo hours witk 90* cbnfidenc.) ??;'"' 5 .*' ' -_: . ' 5 (25c end points) 10 ( -55cand+ 70cendpointe) ??lli??l unm? rii i?, m hr. h at hm ?i'ikt m hfl hr. h,e kin. tj?. mu. 3.33 12 -80 -150 15 33 24 46 32 63 -15 30 . 71 48 iuo 65 133
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