The BZT52B11 with Zener Diodes SOD-123 RoHS is a Zener diode manufactured by Formosa. It has a voltage rating of 11 volts, and is compatible with different package sizes, such as the SOD-123, SOD-323, and SOD-523. It is RoHS compliant, meaning it is free of hazardous substances, and it comes in a convenient 3-pin configuration for easy installation and wiring. This diode is particularly designed for applications that require a high level of durability and reliability, such as automotive systems, LED lighting, and lighting equipment designs.