BUY 1N5223B https://www.utsource.net/itm/p/601392.html
ZENER DIODE 2.4 VOLTS THRU 200VOLTS 500mL, 5% TOLERANCE
Description: The 1N5223B is a 3.0 V, 5.0 W Zener diode in a DO-35 package. Features: Low leakage current Low reverse current Low thermal resistance High reliability High temperature stability High surge capability Applications: Voltage regulation Voltage stabilization Voltage clamping Surge protection Overvoltage protection Reverse polarity protection (For reference only)