MM1Z12 is a Single Zener Diode SOD-123 RoHS package manufactured by Semtech. It is a 3.0V Zener diode with a 200mW power dissipation rating. The package is a very small SOD-123 and it is RoHS compliant, meaning it is free of hazardous materials which improves its environmental impact. It also has a maximum operating temperature of 150°C, making it suitable for high temperature applications. Other features include a high insulation resistance and low leakage current, which adds to its durability. It is ideal for use in automotive and industrial applications in which stability and reliability are of the utmost importance.