BUY BZX585-C5V1,115 https://www.utsource.net/itm/p/11722988.html
Description: The BZX585-C5V1 is a Zener diode with a voltage of 5.1 V and a power dissipation of 500 mW.
Features:
Low leakage current
Low noise
High reliability
High temperature stability
Low thermal resistance
Applications:
Voltage regulation
Voltage clamping
Surge protection
Overvoltage protection
Clamping in switching power supplies
(For reference only)