The SMDJ30CA-AT is a surface mounted, bidirectional, transil diode (TVS) manufactured by Yageo. It is housed in an SMC package (DO-214AB) and is RoHS compliant. The diode has a uni-directional low capacitance rating of 30V and a peak power of 600W. The device is designed to provide protection against surges, transients, and reverse-bias ESD. It is suitable for applications such as with USB ports, consumer electronics, and medical devices.