The AZ5123-01H.R7G is a surface mount (SOD-523) ESD/EMI protection device manufactured by Amazing Electronic. It features an operating voltage of 7.5V, 4V and 3.3V and is RoHS compliant. It is used to protect against overvoltage transients and electrostatic discharges (ESD) that can damage sensitive electronics. This device is suitable for applications involving the protection of data lines and logic circuits.