To prevent damage to the PTC thermistors, they are packaged in Radial packages. Temperature -40°C is the minimum operating temperature for PTC thermistors. This thermistor must not operate above 85°C in order for it to work. A PTC thermistor could provide 16V voltage when operating. thermistors have been rated for 16V in DC circuits. When PTC thermistors produce heat, they should be at 3W.
MC36180 Features
Package / Case: Radial Mount: Through Hole
MC36180 Applications
There are a lot of Multicomp MC36180 PTC Thermistors applications.