BUY BZX84C24 https://www.utsource.net/itm/p/11273055.html
BZX84C24 Zener Diodes 24V 350mW/0.35W SOT23-24V marking Y9 low power
Description: The BZX84C24 is a 24V Zener diode from Fairchild Semiconductor. Features: * Low leakage current * Low noise * High reliability * Low reverse leakage Applications: * Voltage regulation * Voltage clamping * Voltage reference * Overvoltage protection * Reverse polarity protection (For reference only)