This is a transient voltage suppressor (TVS) diode with a surface-mount, dual-common anode (DCA) configuration, manufactured by Yageo. It has two parallel pins on either side, used to create the dual-common anode arrangement. It is 1.5SMC13CA with 18.2V, 12.4V and 11.1V standard ratings, housed in a SMC (DO-214AB) package, and it meets the RoHS Directive. This TVS diode is designed to protect circuits from high-voltage transients, surges, and spikes.