BUY MMBTA44 https://www.utsource.net/itm/p/873375.html
SOT-23-3L Plastic-Encapsulate Transistors
MMBTA44 is a NPN Bipolar Transistor manufactured by ON Semiconductor. It is a surface mount device in a SOT-23 package. Description: The MMBTA44 is a NPN Bipolar Transistor designed for general purpose switching and amplifier applications. Features: Low collector-emitter saturation voltage High current gain Low noise High breakdown voltage Low collector-emitter leakage current Applications: General purpose switching Amplifiers Audio amplifiers Motor control Interface circuits (For reference only)