The SMDJ33CA-AT with TVS SMC (DO-214AB) RoHS manufactured by Yageo is a Transient Voltage Suppressor (TVS) diode. It is designed to protect sensitive electronic components from overvoltage conditions, such as electrostatic discharge (ESD) events. This part has a working voltage of 33V and peak pulse power rating of 500 watts. The DO-214AB (SMC) package has a maximum dimensions of 3.5 x 2.8 x 1.3mm and features a fast response time of less than 1 nanosecond. It comes certified to the RoHS (Restriction of Hazardous Substances) directive, meaning it does not contain certain hazardous substances such as lead, mercury, and cadmium.