In summary, TMOVs are high energy overvoltage protection devices with additional failsafe/thermal protection features which can enhance customer’s product’s safety levels and facilitate customer’s products to meet UL1449 test requests. The TMOVs are available in 14 mm, 20 mm, 25 mm, and 34 mm disc size, and widely used in AC primary circuits for surge protection. Customers will have higher back-end assembly efficiency, production yield and more competitive lead time from Littelfuse TMOVs based on the TMOV's wave-soldering feature, tape and reel packaging option and highly automatic assembly line. TMOVs are design registerable.