The SMDJ58CA-AT with TVS SMC(DO-214AB) RoHS by Yageo is an electronic component used for overvoltage protection and transient voltage suppression. It is designed to deliver up to 5.5V Peak Pulse Power and has working voltage protection from 6.5V to 175V. The RoHS designation means that this particular model meets restrictions on hazardous materials. The component also meets high-level requirements in terms of breakdown voltage, leakage current, and capacitance. This component is ideal for protecting circuits from overvoltage transients, as well as electrostatic discharge (ESD).