The 30KPA39CA with 67.2V 43.6V 39V P600 TVS ROHS manufactured by Yageo is a Transient Voltage Suppressor Diode (TVS) designed to protect the electronic devices from voltage spikes. It has a peak pulse power rating of 600 Watts and a total breakdown voltage of 67.2 V, 43.6 V, and 39 V, and is RoHS compliant. It is used for overvoltage protection of sensitive electronic devices from electrical surges or power spikes.