BUY HSM223C https://www.utsource.net/itm/p/11275668.html
HSm223C Switching Diodes 80V 100mA/0.1A SOT-23/MPAK marking A8 highspeed switch
Description: NPN Silicon Transistor
Features:
Low Collector-Emitter Saturation Voltage
High DC Current Gain
High Transition Frequency
Low Noise
High Breakdown Voltage
Low Collector-Base Capacitance
High Reliability
Applications:
Audio Amplifier
Switching Regulator
Motor Control
High Speed Switching
General Purpose Amplifier
(For reference only)