BUY BSP51 https://www.utsource.net/itm/p/11208448.html

The BSP51 is an NPN Silicon Planar Epitaxial Transistor manufactured by NXP Semiconductors. It is housed in a SOT-223 package and is designed for use in general purpose switching and amplifier applications. Features: * High current (max. 0.8 A) * Low voltage (max. 40 V) * High gain Applications: * Audio amplifiers * Motor control * Relay drivers * General purpose switching (For reference only)