The FTR14D681K manufactured by FTR is a through-hole varistor with a maximum rated power of 7.5mm and a maximum rated voltage of 560V and 1120V. It has a 4.5KA response rate and is RoHS certified. It is designed to protect electric circuits from transient overvoltages caused by lightning or other sources. It provides low-cost protection to electrical and electronic components from voltage spikes. It is also suitable for high temperature and humidity applications. The FTR14D681K is suitable for use in multiple applications, including appliances, power supplies, communication and automotive electronics, and more.