BUY 2SC503 https://www.utsource.net/itm/p/678158.html
TRANSISTOR | BJT | NPN | 50V VBRCEO | 600MA IC | TO-39
Description: 2SC503 is a silicon NPN epitaxial planar transistor manufactured by NEC. Features: * High breakdown voltage * High transition frequency * Low collector-emitter saturation voltage Applications: 2SC503 is mainly used for audio frequency amplifier, driver amplifier, and high frequency amplifier applications. (For reference only)