BUY A817A-O https://www.utsource.net/itm/p/9775737.html

Description: The A817A-O is a transistor manufactured by ON Semiconductor. It is a NPN Bipolar Transistor with a maximum collector current of 500mA and a maximum collector-emitter voltage of 40V. Features: Maximum Collector Current: 500mA Maximum Collector-Emitter Voltage: 40V Maximum Power Dissipation: 500mW Operating Temperature Range: -55°C to +150°C Application: The A817A-O is commonly used in switching and amplification applications. It can be used as a switch to control current flow in circuits, as well as an amplifier to increase the strength of a signal. (For reference only)