What is a tpmov?

Answer 1

TPMOV is abbreviated name, its full name is thermally protected MOV. And the MOV is also abbreviated name, its full name is metal oxide varistor. TPMOV is a combination of thermal link and a MOV inside a small package. It can avoid the fire caused by MOV's failure.

There are some similar names such as TMOV or iTMOV, same as TPMOV. Famous manufacturers such as Littelfuse, Ferraz Shawmut, Epcos, SETfuse and etc.

The applicable standards include UL1449 3rd, IEC61643-331, IEC61052 and etc.