Group LtdThe MM3Z4V7W is a single, 300mW Zener diode manufactured by Jingdao Group Ltd and compliant with the RoHS standards. It has a voltage rating of 4.4V~5V and a nominal voltage of 4.7V, and is housed in a SOD-323W package with a tolerance of ±5%. It is used for providing an adjustable reference voltage in applications that require stability (e.g. voltage regulators, voltage references, power management, etc.).