BUY 2N4123 https://www.utsource.net/itm/p/607728.html
NPN General Purpose AmplifierNPN
The 2N4123 is a NPN silicon transistor manufactured by ON Semiconductor. It is a general-purpose transistor designed for switching and amplifier applications. Description: The 2N4123 is a NPN silicon transistor with a TO-92 package. It has a maximum collector-emitter voltage of 40V and a maximum collector current of 200mA. Features: Low Collector-Emitter Saturation Voltage High Gain Bandwidth Product Low Noise High Current Gain Low Collector-Emitter Leakage Current Applications: Switching Amplifiers Drivers Relays Solenoids Motors (For reference only)