103JG1G

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NTC thermistors are temperature sensors that have been used to accurately measure temperature in various applications for decades. The continuous development of new materials and construction techniques have enabled them to become even more reliable and accurate.

The NTC stands for Negative Temperature Coefficient and the term “thermistor” is an abbreviation for the phrase “thermal resistor”. NTC thermistors are designed to have a resistance that decreases as the temperature rises. This makes them ideal for measuring temperature in a range of areas, from industrial to medical.

In order to use a thermistor, it needs to be connected in series with one or more resistors to create a circuit. This circuit is then connected to a power supply and the current that passes through it will vary depending on the ambient temperature. The greater the temperature, the lower the resistance and the greater the current.

In order to accurately measure temperature with an NTC thermistor, it is necessary to know the temperature coefficient or “TC” of the device. This is a measure of the amount of resistance change that occurs as the temperature changes. The resistance change is measured in ohms per degree Celsius (Ω/°C).

Another important factor in choosing an NTC thermistor is the temperature range that it can accurately measure. This is important because thermistors are designed to measure temperatures in a range of anywhere from -20°C (-4°F) to 150°C (302°F). Knowing this range will ensure that the thermistor is able to accurately measure temperatures in the desired application.

Finally, NTC thermistors are available in a variety of shapes and sizes depending on the application they are intended to be used in. The most common size is the inline thermistor, which fits into a standard 3/4" diameter tube or pipe. Inline thermistors are often used in medical applications, HVAC, and automotive applications. They are also available in much larger sizes, such as the 10 mm stud mount thermistor or the 25 mm thermistor.

NTC thermistors are used in a variety of applications, including temperature and humidity monitoring, motor control, heating and cooling control, and industrial process control. The devices can be used in temperature measurement, temperature control, or both. For example, in an industrial process temperature control, a thermistor can be used to monitor the temperature, and then a controller can be used to turn on or off the heater or cooler, depending on the temperature.

In summary, NTC thermistors are reliable and accurate temperature sensors that can be used in a wide range of applications. Their ability to accurately measure temperature and their range of sizes and shapes make them an attractive option for most applications. When selecting an NTC thermistor for a specific application, it is important to take into consideration the temperature coefficient, temperature range, and size in order to achieve the desired results.

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