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 0°C. Ensure this thermistor is working at 70°C by keeping its operating temperature below that. PTC thermistors are terminated at 2. As you can see, this thermistor has 2 pins.