ldeally, the PTC thermistors should operate at -40°C. There must be no temperature above 85°C for this thermistor to function. There are 2 terminations on the PTC thermistor. It is possible for PTC thermistors to provide voltages of 30V when they are operating.
30R090 Features
Terminal Shape: WIRE
30R090 Applications
There are a lot of Littelfuse 30R090 PTC Thermistors applications.