2SA1266 is a PNP transistor with a high current gain of upto 400. It is commonly used in Amplifier designs and also in general purpose switching circuits. The specification of the 2SA1266 transistor is give below: Collector-Emitter Voltage: 50 V Collector-Base Voltage: 50 V Emitter-Base Voltage: 5 V Collector Current: -0.15 A Collector Dissipation: 0.4 W DC Current Gain (hfe): 70 to 400 Transition Frequency: 80 MHz Noise Figure: 1 dB Operating and Storage Junction Temperature Range: -55 to +125 °C Package: TO-92