BUY SI-3090C https://www.utsource.net/itm/p/1469058.html
5-Terminal, Multi-Function, Full-Mold, Low Dropout Voltage Dropper Type
Manufacturer: Sanken Description: SI-3090C is a NPN Silicon Power Transistor with a TO-220 package. Features: High power dissipation High voltage Low collector-emitter saturation voltage High frequency operation High current gain Low noise Applications: SI-3090C is suitable for applications such as high power switching, audio amplifiers, and power supplies. (For reference only)