A temperature fuse is connected with MOV in series. When the operating current increasing continuously or MOV failure, the temperature fuse will be cut-off, and the temperature of MOV would not increase further, thereby prevent from fires caused by MOV failure. It adopts standard leads as outlet terminals, very suitable to be installed on PCBs. TMOV can be widely used in computer, switching power supply, Power socket, UPS, telecommunication, network, railway, ect.