BUY 2SC1971 https://www.utsource.net/itm/p/1702972.html
NPN EPITAXIAL PLANAR TYPEfor RF power amplifiers on VHF band Mobile radio applications
Description: The 2SC1971 is a NPN silicon epitaxial transistor manufactured by Mitsubishi. Features: rn High breakdown voltage rn Low collector-emitter saturation voltage rn High transition frequency rn High collector current Applications: rn Switching applications rn Audio frequency amplifier rn High-frequency amplifier rn High-speed switching circuits (For reference only)