KC302J2K

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NTC Thermistors are a type of temperature sensor that measures changes in temperature by its resistance inversely varying as the temperature increases. The KC302J2K is a resistive thermistor with a negative temperature coefficient that is widely used in applications such as temperature control, communications, automotive systems and more. This article will discuss and explain the application field and working principle of the KC302J2K.

Application Field

The KC302J2K thermistor is most commonly used in temperature control applications due to its excellent stability over a wide range of temperatures. Its temperature measurement range is -40 to 125 degrees Celsius. This makes it well-suited for applications such as HVAC systems, medical instruments, automotive electronics, and more. It is also suitable for use in multiple physics environments, such as air, water, steam and oil. The thermistor is manufactured with an epoxy-ceramic body, which is designed to provide protection against water, electric shock, and other environmental influences.

Since the thermistor is composed of a metallic oxide mixture, it can be used in a wide variety of electrical applications. The thermistor can be used as temperature measuring device in power supply systems and various motor controls. It is also suitable for use in communication systems, such as satellite circuits, as well as in high-frequency circuits. The durable design of the thermistor makes it an excellent choice for long-term stability in these types of applications.

Working Principle

The KC302J2K thermistor is a resistive device that has a negative temperature coefficient. This means that as the temperature increases, its resistance decreases. This property allows the thermistor to be used as a temperature sensor. The resistance of the thermistor is measured by connecting it to a voltage source and measuring the voltage across the thermistor, and then calculating the resistance value using Ohm’s Law. This resistance value is then used to calculate the temperature.

The thermistor has a linear temperature coefficient, which allows it to reliably measure temperature over the entire range of temperatures. It has a typical resistance of 30,000 ohms at 25 degrees Celsius, which can be used as a reference to calculate temperature. The stability of the thermistor’s resistance over a wide range of temperatures provides accurate and reliable temperature measurement.

Conclusion

The KC302J2K is a resistive thermistor that is widely used in temperature control and other applications due to its excellent stability and accuracy. It has a wide temperature range of -40 to 125 degrees Celsius and a typical resistance of 30,000 ohms at 25 degrees Celsius. Its negative temperature coefficient allows it to measure temperature reliably, and its linear temperature coefficient allows for accurate temperature measurements. Its durable design provides protection against environmental factors, making it an excellent choice for a variety of applications.

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