BUY S-8550AA-M5T1G https://www.utsource.net/itm/p/11201021.html
IC REG BUCK ADJ 600MA SOT23-5
Description: NPN Transistor, SOT-23-5, SII Features: Low saturation voltage Low collector-emitter saturation voltage High current gain High switching speed High voltage rating High reliability Low noise Low power consumption Application: S-8550AA-M5T1G is a NPN transistor used for general purpose switching and amplification applications. It can be used in various electronic circuits such as audio amplifiers, switching circuits, and power supplies. It is also suitable for high-speed switching applications. (For reference only)