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Application Field and Working Principle of NTC Thermistors

NTC Thermistors, also known as negative temperature coefficient thermistors, are special electronic components that are widely used in temperature measurement and thermal protection. Thermistors are made up of sintered semiconducting material which changes its electrical resistivity in response to temperature changes. In addition, the NTC thermistors are small in size and have a wide operating temperature range.

Types of NTC Thermistors

NTC thermistors can be divided into two major types: Disc thermistors and Leaded thermistors. Disc thermistors are disk shaped and usually small, making them suitable for most applications. These thermistors are mainly used in temperature measurement and thermal protection, as well as in over-temperature alarms or other circuits. Leaded thermistors have two leaded wires connected to a metallic plate, and are mainly used in applications requiring a greater temperature range.

The Working Principle of NTC Thermistors

The working principle of NTC thermistors is based on the principles of electrical conductivity and resistance. When the temperature changes, the electrical conductivity of the NTC thermistor also changes. This change in electrical conductivity causes the resistance of the NTC thermistor to change.It is worth noting that the electrical resistivity of NTC thermistors is very sensitive to temperature and can be adjusted accordingly. For instance, when the temperature rises, the resistivity of the thermistor decreases substantially. On the other hand, a decrease in temperature will cause the resistance value of the NTC thermistor to increase significantly.

Application Fields of NTC Thermistors

NTC thermistors are increasingly being used in a variety of applications. These thermistors are mainly employed in temperature measurement devices, thermal protection systems, and over-temperature alarms. In addition, NTC thermistors are also used in motors, air conditioners, refrigerators, and other appliances.NTC thermistors can also be used for industrial purposes, such as controlling motors, monitoring circuit boards, and controlling temperature in industrial furnaces. Additionally, NTC thermistors are also used for controlling lighting systems, in medical equipment, and in the aerospace industry.

Advantages of NTC Thermistors

NTC thermistors have many advantages which make them a popular choice for temperature measurement and thermal protection. NTC thermistors are extremely small and compact and can easily be installed in spaces with limited space. The working temperature range of NTC thermistors is also wide, making them suitable for a variety of applications. In addition, NTC thermistors have a very high accuracy and sensitivity to temperature changes. This makes them ideal for applications requiring temperature accuracy and precision. Finally, NTC thermistors are also very reliable and durable, making them suitable for long-term applications.

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