The BZT52C12S with SOD-323 Zener Diodes ROHS is a 12V Zener diode manufactured by Leiditech. This component is a two-terminal voltage regulator which allows only current flow in one direction and helps to protect against voltage spikes, providing a regulated output voltage. It is rated for an operating temperature range from -55 to 150 C and for an average forward current of 30mA with a pulse load of 100mA. It has a low leakage current of 0.5 µA to 1 µA and can handle a power dissipation of 500mW. It is made of a special epitaxial construction for enhanced stability and reliability. This diode is also ROHS compliant which means it is lead-free and does not contain any hazardous materials.