The S9012 transistor is an PNP transistor with excellent gain capability so that you can use it in amplifier application. The maximum DC gain it can give is 400 and it can have transistor frequency is 150MHz. It can have maximum collector current of 400mA and maximum collector power dissipation of 300mW.

S9012 Transistor Specifications

PNP Transistor
Maximum DC Current Gain: 400
Collector Emitter Saturation Voltage: -0.6V
Base-Emitter Saturation Voltage: -1.2V
Transition Frequency: 150MHz
Excellent Linear Gain Range
Available TO-92 Package