Thermistors - PTC Thermistors Vishay Intertechnology’s PTC (positive temperature coefficient) thermistors portfolio includes parts for over-temperature protection, overload protection, heating applications, and time delay for lighting; motor start packages; motor start pellets; and nickel film linear thermistors.
PTC thermistors have been used in a wide variety of applications over the years. PTC thermistor applications make use of the characteristics inherent in their composition. Generally, applications are broken up into two distinct categories that utilize different characteristics of the PTC. PTC Thermistors Limit Temperature Sensors for Motor Protection 1 PTC Single Sensor & 3 PTC Triple Sensors PTC Thermistor Motor Sensor PTC Thermistors Motor Temperature Sensors with their very steep curves are very suitable for the monitoring of temperature limits and consequently for switching on a fan when a particular temperature is reached.