PTC thermistors are packaged as Radial units to prevent damage. A safety package is used to safeguard these PTC thermistors. It is recommended to set the minimum operating temperature of the PTC thermistors at -40°C. Ensure this thermistor is working at 125°C by keeping its operating temperature below that. PTC thermistors are terminated at 2. As you can see, this thermistor has 2 pins. As a result, PTC thermistors may supply 30V voltage at all times. PTC thermistors have been designed for a current of 1A. A PTC thermistor should not have a current higher than 1A. If the thermistor is to provide reliable performance, the voltage should be 30V.