Construction types of NTC Thermistors

We use a wide variety of materials when constructing our thermistors so that our devices can function appropriately in different environments and applications. Thermistors are used to measure and control temperature.

When working with NTC versions, devices can be broken up into one of three categories. The three construction types of NTC thermistors are:

Bead thermistor: These units offer fast response time and better stability than the other two construction types. It also allows for stable operations at high temperatures. The thermistor is sealed inside the glass, which protects it from mechanical damages.

Disk and chip thermistors: These devices have metalized surface contacts. They are bigger than other NTCs, and so they have a slower response time. Because they are larger in mass, they will have a higher dissipation constant.  The end product for this type of construction is usually coated with epoxy.

Glass encapsulated thermistors: These units are specifically designed to be used in temperatures higher than 150°C and when the presence of moisture is a concern. Encapsulating the thermistor in glass provides for a more stable sensor.

For more information on the difference between NTC thermistor types, please give us a call. We are standing by to answer your technical questions.