The BZT52B30 with Zener Diodes SOD-123 RoHS manufactured by Formosa are General Purpose Zener Diodes. They are designed for use in a wide range of general-purpose, low-power, switching and signal line applications. These diodes feature a single, SOD-123 RoHS (RoHS compliant shrink small outline device) package and offer excellent thermal stability, low reverse leakage current, and low forward voltage drop. The glass-passivated junction of these diodes results in an extremely temperature-stable operation over a wide range of currents.