BUY AC12D https://www.utsource.net/itm/p/1533141.html

Description: AC12D is a NPN transistor manufactured by NEC. It is a three-terminal device with a TO-220 package. Features: Low collector-emitter saturation voltage High current gain Low noise High breakdown voltage High frequency operation Applications: Audio amplifiers Switching circuits Motor control circuits High-speed switching applications (For reference only)