BUY 2SD2560 https://www.utsource.net/itm/p/1864305.html
Silicon NPN Triple Diffused Planar Transistor(Audio, Series Regulator and General Purpose)
2SD2560 is a NPN silicon power transistor manufactured by Sanken Electric Co., Ltd. It is housed in a TO3P package and is designed for use in power amplifier applications. Description: The 2SD2560 is a high power NPN silicon transistor with a maximum collector current of 25A and a maximum collector-emitter voltage of 600V. It is designed for use in power amplifier applications. Features: High collector current: 25A High collector-emitter voltage: 600V High power dissipation: 150W Low collector-base capacitance: 0.5pF Low collector-emitter capacitance: 0.3pF Applications: High power audio amplifiers High voltage switching applications High voltage power supplies (For reference only)