For a temperature regulating system,
NTC thermistor is very important as the temperature sensor. Glass encapsulated thermistor has better performance than epoxy coated thermistor, such as zero short and long term drift, which is an important factor in order to achieve high system performance. Low cost epoxy coated NTC thermistor have large short and long term resistance drift, so when sensing the same temperature, the resistance changes with time, it will lead to a wrong sensed temperature, resulting in a drifted target object temperature.
You can take some factors into consideration when choosing a proper NTC thermistor in temperature control system: operating temperature range, sensitivity, drift, size, mounting method, etc. Our
NTC thermistors are all encapsulated with glass material, with compact size. Some thermistor come with bare leads, while some are lugged form. The former is used for point sensing in order to achieve high accuracy; the latter is for bulk temperature sensing, such as optical components, etc.
Figure 1. The photo of an actual NTC thermistor
If you have any questions about choosing and using NTC thermistors and thermistor assemblies, please contact us.
