The 1SMA4732AG with Zener Diodes SMA RoHS manufactured by Shikues is a surface mount Zener diode with a uni-directional design. It is rated to handle up to 5V of power and is packaged in a small SMA (Surface Mounted Assembly) package for easy installation and replacement. This Zener diode is RoHS (Restriction of Hazardous Substances) compliant, and is built to last with its ultra low reverse leakage current. It is also able to dissipate a maximum power rating of 500mW.