The ZM4759A RoHS Zener Diode manufactured by Semtech is a specialty device designed to provide a constant voltage when connected to an AC or DC power source. It is designed to protect an electrical circuit from overvoltage by acting as a regulator or a “clamp”. It can be used in various power management applications, such as surge protection, low voltage over-voltage and other voltage protection applications. This Zener diode, which has a reverse breakdown voltage of 5.1V, features a variety of package configurations that make it suitable for a wide range of applications. Additionally, the diode is RoHS compliant, making it suitable for use in commercial, industrial, and consumer applications.