BUY 2SA1492/2SC3856 https://www.utsource.net/itm/p/11244387.html

Description: NPN/PNP Silicon Transistor Features: - High voltage and high speed switching - Low collector-emitter saturation voltage - High current gain - Low noise Applications: - High voltage switching circuits - High speed switching circuits - High frequency amplifier circuits - High frequency oscillator circuits - High frequency inverter circuits - Motor control circuits - Switching regulators (For reference only)