The MM1W39 with Zener Diodes SOD-123 RoHS is a type of electronic component manufactured by Jingdao. This component is a bidirectional Zener diode with a low dynamic impedance and high stability, withstanding up to 6V of maximum reverse voltage. It is suitable for level clamping, voltage regulation, and surge suppression applications. The MM1W39 has a SOD-123 RoHS package, making it ideal for surface-mount installations. Additionally, it has a maximum current rating of 1 watt and a low capacitance of 2.5 pF.