The SMCJ130A is a Transient Voltage Suppressor (TVS) diode manufactured by Yageo. It is used for protecting sensitive electronic components against voltage spikes or transient voltages. It has a maximum rating of 209 volts, a working voltage of 144 volts, and a minimum rating of 130 volts and is packaged in the DO-214AB surface-mount package. It is RoHS compliant, meaning it meets the European RoHS (Restriction of Hazardous Substances) directive.