BUY MA77J https://www.utsource.net/itm/p/8935375.html
mA77J Switching Diodes 35V 100mA/0.1A SOT-23/SC-59 marking 4B low forward dynamic resistance
Description: NPN Transistor Features: - Low saturation voltage - High breakdown voltage - High current gain - Low collector-emitter saturation voltage - Low noise - High switching speed Applications: - Switching applications - Audio amplifiers - Motor control - High speed switching circuits - High frequency circuits - Low noise amplifiers (For reference only)