NTC Thermistors and Thermistor Assemblies

NTC Thermistors Selection Guide

NTC Thermistors
Temperature sensors are widely used in many industry and consumer products. Comparing with other temperature sensors such as RTDs (Resistance Temperature Device), thermocouples, temperature ICs, NTC (Negative Temperature Coefficient) thermistors are the most commonly used one thanks to its high sensitivity, low noise, simple peripherals, and low cost. They do have two draw backs: low interchangeability and limited upper temperature range.

NTC thermistors comes with two commonly used packaging materials: epoxy and glass. The former has the lowest cost but high characteristic drift, the latter is of a little higher cost but much better characteristic stability. Our thermistors and thermistor assemblies are mainly using glass encapsulation technologies. They can be used with our TEC controllers and TEC modules for building high stability low drift temperature regulation systems. Their highest precision is +/-0.25°C@25°C, the smallesst size is 0.031" (0.8mm) in diameter.

The NTC thermistors come in bare and lugged forms, the former is for point sensing to achieve high accuracy for specific points, such as laser diode die, etc.; the latter is for bulk temperature sensing, such as optical components, etc. If you have any questions about choosing and using an NTC thermistor or thermistor assemblies, let us know. We will do our best to help you.

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Glass Encapsulated NTC Thermistors

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This series thermistor is encapsulated by glass. The glass ensures long term stability. Compared to conventional epoxy encapsulated thermistors, they feature a smaller size, quicker response time, better long term stability, and wider temperature range. This kind thermistor is sealed between the head and sensing tip allowing it to work up to 250°C temperature.

Thermistor Assemblies

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Ring Lug

This series thermistor is a thermistor assembly with a glass encapsulated thermistor packaged in an extra compact ring lug. Compared to conventional assemblies containing epoxy encapsulated thermistors, this series thermistor presents higher long term stability, higher reliability and wider temperature range. In addition, it is a small size and has a short response time.
This series thermistor can be used to measure the temperature of laser diodes, optical components, etc., with high accuracy and long-term stability.

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Hex Nut

This series thermistor is a thermistor assembly with threaded hex nut. It has bear leads coated with copper. The thermistor assembly presents long term stability, high reliability and wide temperature range, compact size and short response time. It can be used for temperature sensing and detection, transformers, and air sensors, etc.
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Other Types

This series thermistor assembly is housed by a metal cap. The thermistor inside has glass encapsulation to ensure long time operation, wide temperature range, and no parameter drift of either short time or long term. The cap is made of metal, making them long time lasting even under harsh environment, such as acid, moisture, etc. The output terminals use a pair of heavy duty PVC insulated wires of 26 AWG. The length of the wires can be specified. The cap can be customized according to customers need.

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