Thermistor sensors are available in two types: Negative Temperature Coefficients (NTC thermistors) and Positive Temperature Coefficients (PTC thermistors).
A thermistor is a temperature-sensitive resistor used for accurate temperature measurement and monitoring. Thermistor sensors are widely used in applications where reliable and cost-effective temperature measurement is required.
Thermistors are available in two types: NTC thermistors (Negative Temperature Coefficient) and PTC thermistors (Positive Temperature Coefficient). Understanding the difference between NTC and PTC thermistors comes down to how their resistance responds to temperature: NTC thermistors decrease in resistance as temperature increases, while PTC thermistors increase in resistance as temperature increases. NTC thermistors are the most commonly used in temperature measurement.
Thermistor characteristics are defined based on the composition of materials with known resistance. As the temperature increases, an NTC thermistor’s resistance decreases in a non-linear fashion, following a particular curve. The shape of this resistance vs. temperature curve is determined by the properties of the materials that make up the thermistor.
Precision thermistors are accurate to approximately ±0.2°C within their specified temperature range. They are generally durable, long-lasting, and inexpensive, and are typically epoxy coated to ensure reliable performance in heavy-duty environments. Temperature thermistors, and especially NTCs, are mainly applied in a temperature range from -50°C to +150°C with typical resistance values between 2,000Ω and 10,000Ω.
At Senmatic, NTC thermistors are primarily used for low-temperature applications within the refrigerated cargo industry, also known as reefer containers.
These thermistor temperature sensors are used either to measure and monitor the refrigeration unit or as a cargo temperature probe, commonly known as USDA probes.
When selecting a temperature sensor, the choice between a thermocouple and a thermistor depends on the application requirements.
Read more about our thermocouple sensors and their specifications.
With more than 50 years of experience in sensor technology, Senmatic delivers high-precision, tailor-made thermistor sensors developed and tested to meet demanding industry requirements. Our in-house testing and calibration facilities help ensure reliable performance and consistent quality.
Need assistance?
Contact our specialists today if you have any questions regarding our thermocouple sensors. We are ready to assist you.
For further information contact Max Jensen, Global Sales Director, on +45 6389 2223 or maj@senmatic.com.
For further information contact Max Jensen, Global Sales Director, 0n+45 6389 2223 or maj@senmatic.com.
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