Thermistors

A reliable source for Thermocouple information and leading Thermocouple Companies & Manufacturers.

They are typically composed of ceramic or polymer materials which tend to be more sensitive to changes in temperature, with the amount of resistance in a thermistor being increased or decreased according to an increase in temperature. Read Moreā€¦

Thermistors Thermistors are types of semiconductors whose resistance changes according to any changes in temperature in the system to which the thermistor is connected.

Leading Manufacturers

Garland, TX  |  800-889-5478

In business since 1972, Thermo Sensors Corporation is a leading thermocouple manufacturer of an array of many products and services. Thermo Sensors provides the chemical, petrochemical, refining, food, pharmaceutical and other industries with options of standard & special designs. Contact them for information about their products, competitive pricing & rapid delivery!

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Thermo Sensors Corporation $$$

Quakertown, PA  |  800-784-3783

We manufacture a full line of Thermocouples to fit your application. Temperatures from cryogenic to 4000F, and sizes ranging from needle thin to several thousand pound multipoint temperature sensors. In addition to our standardized product lines, TTEC offers design solutions to meet the specific needs of your application. Our products are in use worldwide, in almost every industry. Give us a call today to discuss your requirements.

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Thermocouple Technology, LLC $$$

St. Francis, MN  |  800-272-5709

Temperature Specialists, Incorporated is a manufacturer of quality thermocouples. Temperature Specialists provide solutions for your sensing needs by building to meet your specifications. Feel free to visit their comprehensive and helpful website for full descriptions of their state-of-the-art line of quality products and services or call their experts with any questions.

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Temperature Specialists, Inc. $$$

Danvers, MA  |  978-777-0070

Backer Hotwatt manufactures a complete line of electric heating elements for a wide range of uses. We offer a broad product line of cartridge heating elements, tubular heating elements and immersion heating elements. Custom heating elements-crankcase heaters, ceramic heaters and more are available, such as heating coils & ceramic heating elements. We have been creating heating elements for 60 years.

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Backer Hotwatt, Inc. $$$

Reno, NV  |  800-257-3526

As a supplier of thermal products such as thermostats, thermistors, thermocouples, panel instruments, photo cells and knobs, our range of products are ready for shipment to your door. Our thermistors are used for sensing surface temperatures. We can also manufacture special electronic controls.

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Selco Products Company $$$
placeholder image Thermo Sensors Corporation Thermocouple Technology, LLC Temperature Specialists, Inc. Backer Hotwatt, Inc. Selco Products Company

Because of their dependence on resistance and temperature, thermistors can be used as temperature sensors or heat sensors. Out of all of the types of temperature sensors, thermistors are the most sensitive and so are used in precision applications which rely on system adjustments based on even slight temperature changes. Industries such as automotive, residential heating and electronics, medical, pharmaceutical and food and beverage processing use thermistors because of their ability to read and adjust to even slight changes in temperature.

While they have a higher accuracy than other types of thermocouples such as resistance temperature detectors and high temperature thermocouples, thermistors do have a limited working temperature range due to the sensitive nature of the materials typically used to construct them. Manufacturers are able to design thermistors according to the specific needs of a temperature control system and can adjust the required resistance of the thermistor itself.

Thin Film Resistance Temperature Detector Thermistors - Temperature Specialists, Inc.

Modern thermostats and incubation systems, automotive applications such as monitoring the temperature of engine coolant or oil, as well as basic residential processes like electrical circuit protection all employ a type of thermistor to monitor and control the system. There are two main types of thermistors which are chosen depending on their intended applications. The first type thermistors are called a positive temperature coefficient thermistor (PTC). In PTC thermistors, if the first-order temperature coefficient of resistance is positive, the resistance will increase when the temperature increases. This is seen in current limiting devices such as those used for circuit protection in place of fuses.

The increase in resistance of the thermistor due to a rise in temperature results in lowering the voltage traveling to a device. In the second type of thermistors, called negative temperature coefficient (NTC) thermistors, resistance decreases as temperature increases. This occurs when the first-order temperature coefficient of resistance is negative. These types of thermistors can be used in a wide range of applications. PTC thermistors can take the place of fuses in current-limiting devices for circuit protection, while NTC thermistors can be used as resistance thermometers. The temperature of battery packs and digital thermostats can be observed with either type of thermistor.

Thermistors Informational Video