BUY A1492 , C3856 https://www.utsource.net/itm/p/11303403.html

A1492: Description: A1492 is a high voltage NPN power transistor manufactured by Sanken. Features: High voltage: VCEO = 500V High speed switching: tF = 20μs Low collector-emitter saturation voltage: VCE(sat) = 0.5V (Typ.) High collector current: IC = 5A High power dissipation: PC = 100W Applications: Switching power supply Motor control Inverter High voltage switching applications (For reference only)