BUY N531 https://www.utsource.net/itm/p/9515925.html

Package: SOT23-5 Manufacturer: ZK Description: N531 is a NPN transistor manufactured by ZK. Features: - Low collector-emitter saturation voltage - High current gain - High switching speed - Low noise Applications: N531 is typically used for switching and amplification applications such as audio amplifiers, motor drivers, and power switching circuits. (For reference only)