BUY MPSA13 https://www.utsource.net/itm/p/11239915.html

MPSA13 is a NPN Transistor manufactured by ON Semiconductor. It is a general purpose amplifier and switch. Description: The MPSA13 is a NPN transistor in a TO-92 package. It has a maximum collector current of 500mA and a maximum collector-emitter voltage of 30V. Features: Low collector-emitter saturation voltage High current gain High switching speed Low noise Applications: Audio amplifiers Motor control Switching circuits Relay drivers (For reference only)