The 1SMA4733AG with Zener Diodes SMA RoHS is a series of surface mount diodes manufactured by Shikues. The diodes are designed to be used for voltage regulation and transient protection in automotive, communication, industrial and consumer electronics applications. The 1SMA4733AG has a maximum power rating of 350mW, with a breakdown voltage of 5.1V. It is packaged in a SMA package, allowing for easy mounting and solder bonding. The device is RoHS (Restriction of Hazardous Substances) compliant, meaning it meets environmental standards associated with the European Union in regards to hazardous substances within electronic and electrical products.