BUY 1N3189 https://www.utsource.net/itm/p/1153593.html
DIODE
1N3189 is a silicon rectifier diode manufactured by Microsemi. It is a single-phase, low-power, high-speed switching diode. Description: The 1N3189 is a low-power, high-speed switching diode. It has a maximum forward voltage drop of 1.2V and a maximum reverse current of 5mA. Features: Low-power, high-speed switching diode Maximum forward voltage drop of 1.2V Maximum reverse current of 5mA Low capacitance Applications: Switching applications Voltage clamping Signal processing Rectification (For reference only)