The 5.0SMDJ28CA with TVS SMC (DO-214AB) RoHS manufactured by Yageo is a surface-mount transient-voltage suppression (TVS) diode. It is designed to protect electronic circuits from overvoltage transients generated by insulation breakdown, induced lightning, ESD (electrostatic discharge) and other disruptive events. This diode has a 2-pin ceramic SMA package and conforms to European Directive 2002/95/EC (RoHS) for the elimination of hazardous substances. It has a voltage rating of 5.0 volts and a peak pulse power of 400 watts, making it a suitable choice for protecting consumer electronics or automotive systems.