The 680KD07J is a varistor manufactured by Yageo with a through-hole mounting style and RoHS compliant. It has a capacitance of 680pF (Pico Farads) with an AC voltage rating of 1500V. It has a rated working voltage of 500V and a clamping voltage of 1020V. The 680KD07J is widely used in protective circuits such as for appliances, industrial control, audio/video, telecommunications, automotive, and computers due to its fast response time and good noise absorption. This varistor also offers high surge capacity with a maximum peak current of 40A.