The SMAJ350CA is a Transient Voltage Suppressor (TVS) diode made by Yageo. It is RoHS compliant, and comes in a SMA(DO-214AC) package. It is designed to protect electronic circuits against voltage transients created by lightning, electrostatic discharge, and other effects. The device has a maximum clamping voltage of 567V, a breakdown voltage of 391V, and a working voltage of 350V.