This part is a kind of semiconductor called A1979.

Function of this product has 2SA1979.

Manufacturers : AUK Corporation

Image and pinout :

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Semiconductor 2SA1979 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. 2SA1979 Marking A1979 Package Code TO-92 Outline Dimensions 3.45±0.1 4.5±0.1 2.25±0.1 unit : mm 4.5±0.1 0.4±0.02 2.06±0.1 14.0±0.40 1.27 Typ. 2.54 Typ. 1 2 3 1.20±0.1 0.38 PIN Connections 1. Emitter 2. Collector 3. Base KST-9001-001 1 2SA1979 Absolute maximum ratings Characteristic Collector-Base voltage Collector-Emitter voltage Emitter-Base voltage Collector current (Ta=25°C) Symbol VCBO VCEO VEBO IC PC Tj Tstg Ratings -40 -32 -5 -500 625 150 - [ ... ]

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