BUY 10D101 https://www.utsource.net/itm/p/8933572.html
DIP zinc oxide varistor 10D101
10D101 is an NPN Silicon Transistor manufactured by HUADY. It is designed for use in general purpose switching and amplifier applications. It has a maximum collector current of 0.5A and a maximum collector-emitter voltage of 30V. It is also capable of withstanding a maximum power dissipation of 500mW. It is suitable for use in low-noise and low-power circuits. (For reference only)