Hi there,

Welcome to our NTC temperature sensors page. We offer a variety of models for NTC temperature control, which are listed below. However, for those who may be less familiar with the topic, it may be helpful to provide a brief description.

NTC stands for "Negative Temperature Coefficient". NTC thermistors are resistors with a negative temperature coefficient, meaning that their resistance decreases as temperature increases. They are primarily used as resistance-based temperature sensors and current-limiting devices. Their temperature sensitivity coefficient is approximately five times greater than that of silicon temperature sensors (silistors - PTC) and about ten times greater than that of resistance temperature detectors (RTD - Pt100). NTC sensors are typically used in the range of -55°C to 200°C.

In the past, the non-linear relationship between resistance and temperature exhibited by NTC resistors presented a significant challenge when using analog circuits to accurately measure temperature. However, the rapid development of digital circuits has solved this problem through algorithms that interpolate lookup tables or solve equations to calculate precise values that approximate a typical NTC curve.

An NTC thermistor is a thermally sensitive resistor that shows a precise and predictable decrease in resistance as the core temperature increases within the operating temperature range. NTC thermistors are typically made from ceramics or polymers, and the use of different materials results in different and rapid temperature responses at other temperatures.

While most NTC thermistors are suitable for use in the temperature range of -55°C to 200°C, there are special types of NTC thermistors that can be used at temperatures approaching absolute zero (-273.15°C). The temperature sensitivity of an NTC sensor is expressed as a "percentage change per degree Celsius". Depending on the materials used and the characteristics of the manufacturing process, typical temperature sensitivities range from -3% to -6% per °C.

As we mentioned earlier, NTC thermistors have a much steeper resistance-temperature slope compared to platinum alloy RTDs. This translates to better temperature accuracy. Nevertheless, RTDs remain the most accurate sensors, with accuracies of ±0.5°C measured temperature, and are useful in a much wider temperature range of -200°C to 800°C compared to NTC temperature sensors. (What is NTC?)

NTC thermistors are typically made using ceramic or polymer materials such as pure elements, platinum, nickel, cobalt, iron, and silicon oxides. Depending on the manufacturing process, NTC thermistors can be divided into three groups.

We offer two basic types of NTC probes on our website: one for measuring air and ambient temperature, and the other for measuring liquid and cooling machine temperatures. Please keep this distinction in mind.

/ PTC sensors page

/ NTC sensors page

/ Main page for temperature control devices

/ PLC devices for temperature sensors -