SolutionsThe BZT52B9V1S is a SOD-323 RoHS compliant Zener diode manufactured by SMC Diode Solutions. It is designed to protect electronic components from excessive voltage by clamping it to a pre-determined voltage. It has a low power dissipation of 200mW, and it is capable of functioning over a wide temperature range. This Zener diode has a nominal Zener voltage range of 6.8V to 9V, with a voltage regulation tolerance of at least ±5%. The device has a maximum thermal resistance of 1.2K/W. The BZT52B9V1S is made with a 30V critical protective breakdown voltage, and it also has a Maximum Reverse Leakage Current (IR) of 10µA.