The MM3Z12BW with SOD-323W is a Zener diode manufactured by Jingdao. This ROHS (Recognized of Hazardous Substances) diode is designed for medium-power operations with maximum power dissipation of 500 mW maximum, and a breakdown voltage of 12V. It is an ideal device for applications such as voltage regulation, over-voltage clamping, and surge protection. It has an operating temperature range of -55 to +175°C, and features an ultra-small package of 0.7 x 0.7 mm with a total thickness of 0.23 mm. It is a hermetically sealed device that meets international standards for RoHS compliance, ESD protection, RoHS compliance, and other safety requirements.