ST 2SA1458 PNP Silicon Epitaxial Planar Transistor for general purpose amplifier and high speed switching applications. The transistor is subdivided into three groups M, L and K, according to its DC current gain. On special request, these transistors can be manufactured in different pin configurations. Features ․High frequency current gain ․High speed switching ․Small output capacitance ․Low collector saturation voltage ․Complementary to ST 2SC3731 NPN transistor TO-92 Plastic Package Weight approx. 0.19g Absolute Maximum Ratings (Ta = 25 OC) Symbol Value Unit Collector Base Voltage -VCBO 40 V Collector Emitter Voltage -VCEO 40 V Emitter Base Voltage -VEBO 5 V Collector Current (DC) -IC 200 mA Power Dissipation Ptot 250 mW Junction Temperature Tj 150 Storage Temperature Range TS -55 to+150 O C O C SEMTECH ELECTRONICS LTD. (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) ® Dated : 07/08/2003 ST 2SA1458 Characteristics at Tamb=25 OC Symbol Min. Typ. Max. Unit Current Gain Group M hFE 75 - 150 - L hFE 100 - 200 - K hFE 150 - 300 - hFE 25 100 - - -ICBO - - 0.1 μA -IEBO - - 0.1 μA -VCE(sat) - 0.1 0.4 V -VBE(sat) - 0.8 0.95 V ton - - 70 ns tstg - 110 225 ns toff - - 300 ns fT 200 510 - MHz COB - 2.5 4.5 pF DC Current Gain* at -VCE=1V, -IC=100mA at -VCE=1V, -IC=1mA Collector Cutoff Current at -VCB=30V Emitter Cutoff Current at -VEB=3V Collector Saturation Voltage* at -IC=50mA, -IB=5mA Base Saturation Voltage* at -IC=50mA, -IB=5mA Turn-on Time See test circuit Storage Time See test circuit Turn-off Time See test circuit Gain Bandwidth Product at -VCE=20V, IE=10mA, f=100MHz Output Capacitance at -VCB=5V, f=1MHz *Pulsed PW≦350μs, Duty Cycle≦2% SEMTECH ELECTRONICS LTD. (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) ® Dated : 07/08/2003 ST 2SA1458 Collector current vs. collector emitter voltage -20 -90 -1mA -900 -800 -700 -600 -500 -100 -80 -70 -60 -50 -16 -80 -40 -12 -30 Ic (mA) Ic (mA) Collector current vs. collector emitter voltage -20 -8 -60 -400 -300 -40 -200 -20 -4 I B =-100 A I B =-10 A 0 0 -20 -10 -30 -40 0 -50 -0.8 -1.6 VCE (V) Total power dissipation vs. ambient temperature Collector current vs. base emitter voltage -100 VCE= -1V 300 I C, mA -10 200 -1 100 0 -0.1 50 100 150 -0.4 0 200 -0.8 Ambient temperature Ta ( C) -1.2 VBE, V Gain bandwidth product vs. emitter current DC current gain vs. collector current 1000 1000 VCE= -20V VCE= -1V hFE fT, MHz -1.2 VCE (V) 400 Total power dissipation, mW -0.4 0 -2.0 100 100 10 10 -0.1 1 -10 100 -10 -1 -100 I C, mA IE, mA SEMTECH ELECTRONICS LTD. (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) ® Dated : 07/08/2003 ST 2SA1458 Input and output capacitance vs. reverse voltage Base and collector saturation voltage vs. collector current 30 -3 f=1MHz IE=0(Cob) IC=0(Cib) IC/IB=10 10 VBE(sat) Cib Cob, pF Cib, pF VCE(sat), V VBE(sat), V -1 Cob 1 -0.1 VCE(sat) -0.01 -0.1 0.1 -0.1 -100 -10 -1 -10 -1 I C, mA Turn on time vs. collector current 1000 VCC= -30V tr - rise time , ns VCC= -30V ton, ns 300 Rise time vs. collector current 1000 IC/IB=20 100 IC/IB=10 100 IC/IB=20 IC/IB=10 10 10 -2 -100 -10 -200 -2 -200 -100 -10 I C, mA I C, mA Fall time vs. collector current Storage time vs. collector current 1000 1000 VCC= -30V IB1= -IB2 tf - fall time, ns VCC= -30V IB1= -IB2 ts - storage time, ns -100 VCB, V VEB V IC/IB=10 100 IC/IB=20 100 IC/IB=20 IC/IB=10 10 10 -2 -100 -10 -200 I C, mA -2 -100 -10 -200 I C, mA SEMTECH ELECTRONICS LTD. (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) ® Dated : 07/08/2003 ST 2SA1458 VCC= -3V VBB= +0.5V INPUT 275 100 tf VOUT 0.1 F 100K tr VIN -11.1V 90% OUTPUT 100 PW∝300ns tr<1ns ZIN=50 Duty Cycle=2% ton = tf + tr ton SWITCHING VBB= -11V VCC= -3V 100 275 INPUT t stg VOUT +20V 0.1 F 0 10K tf VIN 100 10% 1S955 OUTPUT 10% 90% 1S955 PW∝300ns tr<1ns Duty Cycle=2% toff SWITCHING toff = tf + tstg SEMTECH ELECTRONICS LTD. (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) ® Dated : 07/08/2003