1/2 www.rohm.com c 2011 rohm co., ltd. all rights reserved. 2011.11 - rev.b npn small signal transistor BCX70J, k ? features ? dimensions (unit : mm) 1) ideal for switching and af amplifier applications. 2) complements the bcx71. ? packaging specifications package code taping basic ordering unit (pieces) BCX70J, k t116 3000 type ? absolute maximum ratings (ta=25 ? c) collector-base voltage collector-emitter voltage emitter-base voltage collector current collector power dissipation junction temperature storage temperature ? mounted on a 7 5 0.6 mm ceramic substrate parameter v cbo v ceo v ebo p c tj tstg 45 v v v a c c 45 5 0.2 i c ? 0.2 0.35 w w 150 ? 55 to 150 symbol limits unit ? electrical characteristics (ta=25 ? c) collector-emitter breakdown voltage emitter-base breakdown voltage collector-emitter cutoff current emitter-base cutoff current collector-emitter saturation voltage base-emitter saturation voltage base-emitter voltage dc current transfer ratio collector-base cutoff current parameter symbol bv ceo bv ebo i ces i ebo v ce(sat)2 h fe1 h fe2 f t i cbo min. 45 5 ? ? ? 250 125 ? ? ? ? ? ? ? ? ? ? ? 0.1 0.1 0.55 630 90 ?? ? 20 vi c = 2ma i c = 10 a v ce = 45v v eb = 4v i c /i b = 50ma/ 1.25ma v ce = 5v, i c = 2ma v ce = 5v, i c = 50ma v ce = 5v, i e = 10ma, f = 100mhz v cb = 45v, ta = 150 c v a a v v ce(sat)1 ? ? 0.35 i c /i b = 10ma/ 0.25ma v v be(sat)2 ? ? 1.05 i c /i b = 50ma/ 1.25ma v v be(sat)1 ? ? 0.85 i c /i b = 10ma/ 0.25ma v ? mhz a typ. max. unit conditions v be(on) 0.55 ? 0.75 v ce = 5v, i c = 2ma v transition frequency cob ?? 4.5 v cb = 10v, f = 1mhz, i e =0a pf collector output capacitance nf ?? 6v ce = 5v, i c = 200 a, f = 1khz,rg = 2k db noise figure h fe1 h fe2 part. no BCX70J 250 to 460 90 or more bcx70k 380 to 630 125 or more t his parts are classified into the categories below and given h fe item . each lead has same dimensions (1)emitter (2)base (3)collector BCX70J,k 0.45 0.95 0.15 0.2min. 2.4 1.3 2.9 0.95 ( 1 ) ( 3 ) 0.95 ( 2 ) 1.9 0.4 abbreviated symbol : gaj (BCX70J) gak (bcx70k)
BCX70J, k data sheet 2/2 www.rohm.com c 2011 rohm co., ltd. all rights reserved. 2011.11 - rev.b ? electrical characteristics fig.8 gain bandwidth product vs. emitter current fig.9 collector output capacitance vs. collector-base voltage emitter input capacitance vs. emitter-base voltage 50 ? 0.5 ? 1 ? 2 ? 5 ? 10 ? 20 ? 50 ? 100 100 200 500 ta=25 c v ce =6v emitter current : i e (ma) transition frequency : f t (mhz) collector to base voltage : v cb (v) emitter to base voltage : v eb (v) collector output capacitance : cob ( pf) emitter input capacitance : cib ( pf) 0.2 0.5 1 2 5 10 20 50 1 2 5 10 20 cob ta=25 c f = 1mhz i e =0a i c =0a cib 0.1 1 10 100 0 0.2 0.4 0.6 0.8 1 1.2 i : t n e r r u c r o t c e l l o c c ) a m ( base to emitter voltage : v be (v) v ce =5v ta=125oc 75oc 25oc -55oc 0 -40 -80 -120 -160 0-2-4-6-8-10 i : t n e r r u c r o t c e l l o c c ) a m ( collector to emitter voltage : v ce (v) i b =50ua i b =0a ta=25oc i b =100ua i b =150ua i b =200ua i b =250ua i b =300ua i b =500ua 450ua 400ua 350ua fig1. grounded emitter propagation characteristics fig2. grounded emitter output characteristics 10 100 1000 1 10 100 1000 h : n i a g t n e r r u c c d e f collector current : i c (ma) ta=25oc v ce =5v 3v 1v fig3. dc current gain vs. collector current (i) fig5. collector saturation voltage vs. collector current (i) 10 100 1000 1 10 100 1000 h : n i a g t n e r r u c c d e f collector current : i c (ma) v ce =-5v ta=125oc 75oc 25oc -55oc fig4. dc current gain vs. collector current (ii) 0.01 0.1 1 0.1 1 10 100 1000 v : e g a t l o v n o i t a r u t a s r o t c e l l o c ) t a s ( e c ) v ( collector current : i c (ma) i c /i b =40/1 ta=125oc 75oc 25oc -55oc fig6. collector saturation voltage vs. collector current (ii) -0.1 -1 -10 -1 -10 -100 -1000 v : e g a t l o v n o i t a r u t a s e s a b ) t a s ( e b ) v ( collector current : i c (ma) i c /i b =40/1 ta=-55oc 25oc 75oc 125oc fig7. base saturation voltage vs. collector current 0.01 0.1 1 0.1 1 10 100 1000 v : e g a t l o v n o i t a r u t a s r o t c e l l o c ) t a s ( e c ) v ( collector current : i c (ma) ta=25oc i c /i b =40/1 20/1 10/1
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