The 5.0SMDJ43A is a RoHS compliant TVS SMC (Transient Voltage Suppressor-Surface Mount Component) manufactured by Yageo. It is designed to protect against ESD (electrostatic discharge) at up to 8 kilovolts and EFT (electrical fast transients) up to 40A. The device is packaged in the DO-214AB surface mount package and is designed to reduce any overvoltage to a safe level. The 5.0SMDJ43A is suitable for a wide variety of electronic applications, such as CPU, memory or peripheral protection circuits, telecommunication, computer, and consumer electronic equipment.