The 30KPA51CA is an electronic component manufactured by Yageo that is a Transient Voltage Suppression (TVS) Device with reverse standoff voltages of 86.4V, 57V, and 51V. It is also rated with a P600 power rating and is RoHS compliant. This TVS device is designed to protect sensitive components from high voltage transients, such as those generated from power surges and other events.