ElectronicsThe 1A7R with New Quadratic Unclassified Data DO-214AA RoHS is an electronic part manufactured by Pingwei Electronics. It is a unidirectional, high-current, bidirectional, transient voltage suppressor diode designed for applications that require surge protection, EMI noise filtering, and protection from electrostatic discharge (ESD). This part has a voltage stand-off of 700 W, and is packaged in the popular DO-214AA case. The device is RoHS (Restriction of Hazardous Substances) compliant, and is an ideal solution for applications that need protection from transient voltage spikes or ESD events.