The MM1W18 is a Zener diode manufactured by Jingdao with RoHS compliance. It is housed in a SOD-123 package and is constructed from a single piece of semiconductor material. The device can be used as a voltage regulator, surge protection, and for many other applications. It features a relatively low reverse leakage current, low thermal resistance and is suitable for operation in a variety of commercial and industrial applications. It is designed for both wave soldering and manual assembly.