The 1.5SMC13A is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Yageo. It is in a DO-214AB size package, and is RoHS compliant. The device is designed to protect multiple components from voltage transients such as electrostatic discharge (ESD), lightning, and overvoltage events. It has a working voltage range of 18.2V to 12.4V to 11.1V. It features an ESD protection of up to 25kV (z>100ohm). This device is typically used in applications such as automotive systems, industrial, telecom, and consumer electronics.