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 90°C. Ensure this thermistor is working at 40°C by keeping its operating temperature below that. As you can see, this thermistor has 2 pins. A thermistor in this range is nominally capable of supplying 30V voltage.
B59008C150A40 Features
Package / Case: Radial Mount: PCB, Through Hole 2 Pins
B59008C150A40 Applications
There are a lot of TDK Corporation B59008C150A40 PTC Thermistors applications.