BUY (100PCS) DIP ZENER DIODE 0.5W 4.7V https://www.utsource.net/itm/p/8134997.html

Description: The 1N5231B is a 4.7V, 0.5W Zener Diode in a DO-41 package. It is designed for use in applications such as voltage regulation, voltage clamping, and overvoltage protection. Features: Low leakage current High temperature stability Low noise Low power dissipation High reliability High surge current capability Applications: Voltage regulation Voltage clamping Overvoltage protection Voltage reference Voltage stabilization (For reference only)