BUY BZX84C30-GS08 https://www.utsource.net/itm/p/8932970.html
BZX84C30-GS08 Zener Diodes 30V 300mW/0.3W SOT23-30V marking Y11 low power
Description: Zener Diode Features: Low leakage current Low noise Low temperature coefficient Low thermal resistance High stability High reliability High power dissipation Applications: Voltage regulation Voltage clamping Voltage references Surge protection ESD protection Switching power supplies Battery chargers Automotive electronics (For reference only)