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Thermistors
 
   What are Thermistors



Thermistor Product Links
View All Thermistors
Thermistor Technical Links
Thermistor Resistance vs. Temperature
Resistance vs. Temperature for Series 700 Linear Thermistor Pairs
Temperature Measurement and Control Glossary
Practical Guidelines for Temperature Measurement
Ohm's Law, Summary
Practical Guidelines for Temperature Measurement

The Thermistor

What is a thermistor? A thermistor is a temperature-sensing element composed of sintered semiconductor material which exhibits a large change in resistance proportional to a small change in temperature. Thermistors usually have negative temperature coefficients which means the resistance of the thermistor decreases as the temperature increases.
   Using a Thermistor - Benefits
A Word About Accuracy
Thermistors are one of the most accurate types of temperature sensors. OMEGA thermistors have an accuracy of ±0.1°C or ±0.2°C depending on the particular thermistor model. However thermistors are fairly limited in their temperature range, working only over a nominal range of 0°C to 100°C .

Stability
Finished thermistors are chemically stable and not significantly affected by aging.
   Thermistor Types
Thermistor Elements
The thermistor element is the simplest form of thermistor. Because of their compact size, thermistor elements are commonly used when space is very limited. OMEGA offers a wide variety of thermistor elements which vary not only in form factor but also in their resistance versus temperature characteristics. Since thermistors are non-linear, the instrument used to read the temperature must linearize the reading.
44000 Series Thermistor Element
Linear Response Thermistor Elements
For applications requiring thermistors with linear response to temperature change, OMEGA offers linear components. These unique devices consist of a thermistor composite for temperature sensing and an external resistor composite for linearizing.
Linear Response Thermistor
Thermistor Probes
The standalone thermistor element is relatively fragile and can not be placed in a rugged environment. OMEGA offers thermistor probes which are thermistor elements embedded in metal tubes. Thermistor probes are much more suitable for industrial environments than thermistor elements.
TJ36 Thermistor Probe
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