BUY EW550 https://www.utsource.net/itm/p/9274532.html

Package Type: TO-92 Manufacturer: AKE Description: The EW550 is a NPN transistor manufactured by AKE. It is a low-power, low-voltage transistor with a maximum power dissipation of 500mW. Features: - Low-power, low-voltage NPN transistor - Maximum power dissipation of 500mW - Low collector-emitter saturation voltage - High current gain Applications: - Amplification - Switching - Interface circuits - Low-power audio amplifiers (For reference only)