2N1991

Small Signal Transistors TO-18 Case (Continued) TYPE NO. DESCRIPTION BVCBO BVCEO BVEBO ICBO @ VCB (V) (V) (V) (µA) (V) MIN MIN MIN MAX *ICES **ICEV hFE MIN MAX @ IC @ VCE (mA) (V) VCE (SAT) @ IC Cob fT NF (V) (mA) (pF) (MHz) (dB) MAX MAX MIN MAX ton (ns) MAX toff (ns) MAX 2N957 2N978 2N995 2N996 2N1991 2N2205 2N2220 NPN RF/IF OSC PNP AMPL/SWITCH PNP SAT SWITCH PNP SAT SWITCH PNP AMPL/SWITCH NPN SAT SWITCH NPN AMPL/SWITCH 40 30 20 15 30 25 60 75 75 15 40 40 25 10 25 25 15 60 60 40 124 100 80 60 60 60 75 40 40 50 50 60 60 25 25 12 12 120 20 20 15 12 20 12 35 40 40 15 15 15 25 10 20 20 6.0 60 60 20 80 65 50 30 30 45 40 20 20 35 35 30 20 20 20 12 12 65 5.0 5.0 4.0 4.0 5.0 3.0 5.0 6.0 6.0 5.0 4.0 4.0 10 10 5.0 5.0 4.0 6.0 6.0 6.0 7.0 7.0 7.0 5.0 5.0 6.0 7.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 4.0 4.0 7.0 -5.0 0.005 0.005 5.0 0.025 0.01 0.01 0.01 -0.4 -1.0 0.1 0.01 0.01 0.5 0.01 0.01 -0.005 0.005 0.005 0.25 0.25 0.200 0.01 0.03 0.03 0.1 0.1 0.2 0.2 --0.08* 0.05 -- -10 15 10 10 15 50 60 60 -20 -25 10 25 25 5.0 45 45 -100 80 60 40 40 45 60 20 20 30 30 30 30 --6.0 10 -- 45 15 35 35 15 20 20 40 100 40 20 40 15 15 20 40 30 40 100 50 25 150 240 50 100 120 100 25 40 30 75 30 40 30 12 40 30 40 -60 140 -60 -60 120 300 120 40 120 120 -60 120 150 120 500 150 -500 750 150 300 360 300 ----120 140 120 120 150 -120 10 150 20 20 150 10 150 150 150 10 10 10 1.0 5.0 10 10 20 0.01 0.01 10 0.01 10 10 150 150 0.01 150 10 10 150 150 150 150 0.01 0.01 30 10 150 10 10 1.0 1.0 10 1.0 10 10 10 1.0 1.0 1.0 6.0 0.5 0.5 0.5 0.4 5.0 5.0 1.0 5.0 5.0 5.0 10 10 5.0 10 1.0 1.0 10 10 10 10 5.0 5.0 0.5 0.3 10 -1.5 0.2 0.3 1.5 0.22 0.4 0.3 0.3 0.3 0.25 0.25 -0.15 0.2 0.2 0.4 0.35 0.35 0.2 1.0 1.0 1.0 0.45 0.45 0.5 0.4 0.25 0.25 1.0 1.0 1.0 0.75 0.2 0.2 0.5 0.13 0.5 -150 20 60 150 10 150 150 150 10 10 1.5 -5.0 10 10 1.0 1.0 1.0 10 5.0 5.0 5.0 150 150 10 10 10 10 150 150 500 500 10 10 100 10 500 6.0 45 10 10 45 6.0 8.0 8.0 8.0 6.0 4.0 4.0 12 12 5.0 5.0 3.0 6.0 6.0 4.0 6.0 6.0 6.0 8.0 8.0 7.0 25 4.0 4.0 25 25 8.0 8.0 6.0 6.0 6.0 4.5 15 200 40 100 100 40 200 250 250 250 250 400 500 --200 200 600 60 60 350 45 45 45 250 250 45 50 350 500 120 120 250 250 200 150 400 800 120 -----------------4.0 2.0 -7.0 4.0 4.0 --3.0 -------3.0 4.0 ---- --65 --40 ----12 ---25 25 20 ------40 40 --35 20 --40 25 --60 20 -- --125 --75 -285 285 25 15 18 --100 100 15 ------40 40 --75 35 --40 40 --90 25 -- 2N2221A NPN AMPL/SWITCH 2N2222A NPN AMPL/SWITCH 2N2242 2N2368 NPN SAT SWITCH NPN SAT SWITCH 2N2369A NPN SAT SWITCH 2N2377 2N2378 2N2411 2N2412 2N2475 2N2483 2N2484 2N2501 2N2509 2N2510 2N2511 2N2539 2N2540 2N2586 2N2645 2N2651 2N2710 2N2837 2N2838 2N2845 2N2847 2N2861 2N2862 2N2894 PNP AMPL/SWITCH PNP AMPL/SWITCH PNP SAT SWITCH PNP SAT SWITCH NPN SAT SWITCH NPN LOW NOISE NPN LOW NOISE NPN SAT SWITCH NPN LOW NOISE NPN LOW NOISE NPN LOW NOISE NPN SAT SWITCH NPN SAT SWITCH NPN LOW NOISE NPN AMPL/SWITCH NPN SAT SWITCH NPN SAT SWITCH PNP AMPL/SWITCH PNP AMPL/SWITCH NPN SAT SWITCH NPN SAT SWITCH PNP LOW NOISE PNP LOW NOISE PNP SAT SWITCH 2N2894A PNP SAT SWITCH 2N2895 NPN AMPL/SWITCH (6-December 2004) w w w. c e n t r a l s e m i . c o m