2SA1979 Semiconductor PNP Silicon Transistor Description • Medium power amplifier Features • Large collector current : ICMax=-500mA • Suitable for low-Voltage operation because of its low saturation voltage • Complementary pair with 2SC5342 Ordering Information Type NO. Marking 2SA1979 A1979 Package Code TO-92 Outline Dimensions unit : mm 3.35~3.55 4.4~4.6 4.4~4.6 2.15~2.35 1.96~2.16 14.0±0.40 0.38~0.42 1.27 Typ. 2.54 Typ. 2 3 PIN Connections 1. Emitter 2. Collector 3. Base 0.38 1.1~1.3 1 KST-9001-002 1 2SA1979 Absolute maximum ratings (Ta=25°C) Characteristic Symbol Ratings Unit Collector-Base voltage VCBO -40 V Collector-Emitter voltage VCEO -32 V Emitter-Base voltage VEBO -5 V Collector current IC -500 mA Collector dissipation PC 625 mW Junction temperature Tj 150 °C Storage temperature Tstg -55~150 °C Electrical Characteristics Characteristic (Ta=25°C) Symbol Test Condition Min. Typ. Max. Unit Collector-Base breakdown voltage BVCBO IC=-100µA, IE=0 -40 - - V Collector-Emitter breakdown voltage BVCEO IC=-1mA, IB=0 -32 - - V Emitter-Base breakdown voltage BVEBO IE=-10µA, IC=0 -5 - - V Collector cut-off current ICBO VCB=-40V, IE=0 - - -0.1 µA Emitter cut-off current IEBO VEB=-5V, IC=0 - - -0.1 µA DC current gain hFE* VCE=-1V, IC=-100mA 70 - 240 - IC=-100mA, IB=-10mA - - -0.25 V VCE=-6V, IC=-20mA - 200 - MHz VCB=-6V, IE=0, f=1MHz - 7.5 - pF Collector-Emitter saturation voltage Transistor frequency Collector output capacitance * VCE(sat) fT Cob : hFE rank / O : 70~140, Y : 120~240 KST-9001-002 2 2SA1979 Electrical Characteristic Curves Fig. 1 PC - Ta Fig. 2 IC - VBE Fig. 3 I C - VCE Fig. 4 VCE(sat) - IC Fig. 5 hFE - IC Fig. 6 hFE - KST-9001-002 IC 3 2SA1979 These AUK products are intended for usage in general electronic equipments(Office and communication equipment, measuring equipment, domestic electrification, etc.). Please make sure that you consult with us before you use these AUK products in equipments which require high quality and/or reliability, and in equipments which could have major impact to the welfare of human life(atomic energy control, airplane, spaceship, traffic signal, combustion central, all types of safety device, etc.). AUK cannot accept liability to any damage which may occur in case these AUK products were used in the mentioned equipments without prior consultation with AUK. KST-9001-002 4