ST) Description: BUY49S is a NPN silicon planar epitaxial transistor manufactured by STMicroelectronics. Features: Low collector-emitter saturation voltage High current gain High switching speed Low noise Low collector-emitter leakage current High current gain bandwidth product Applications: BUY49S is suitable for use in amplifier, switching, and other general purpose applications. It is commonly used in audio amplifiers, switching regulators, and motor control circuits.(For reference only)
https://www.utsource.net/itm/p/419988.html

BUY49S
