The BZT52C51 with Zener Diodes SOD-123 RoHS is a semiconductor device manufactured by Shikues. This diode is used for voltage regulation and works by limiting the voltage across a circuit. It is a 3-terminal device, with two terminals on the cathode side, and one connected to the anode side. The devices are constructed using glass-passivated junctions, allowing for higher performance and lower cost than other voltage regulating devices. Features include breakdown voltage ranging from 5.1V to 75V, a maximum reverse power dissipation of 500mw, and a maximum junction temperature of 175°C. These devices are RoHS compliant, providing a safe, environment-friendly option for use in consumer electronics.