BUY 2SA2057 https://www.utsource.net/itm/p/1234260.html
Silicon PNP epitaxial planar type
Description: The 2SA2057 is a PNP Silicon Transistor manufactured by Panasonic. Features: Low collector-emitter saturation voltage High breakdown voltage High gain High current capacity Low noise Applications: The 2SA2057 is used in various applications such as audio amplifiers, power amplifiers, switching circuits, and voltage regulators. (For reference only)