SB252J1K

NTC thermistor is an important component of temperature measurement. SB252J1K is one of the most common thermistors on the market, which can be used in a wide range of industries to measure temperature. It is composed of a semiconductor ceramic material, and its resistance decreases when temperature rises.

Principle of Action

When a current is applied to a SB252J1K thermistor, the temperature of the thermistor affects its resistance in an inverse manner. As the temperature rises, its resistance decreases exponentially, and vice versa. This principle is often referred to as the “negative temperature coefficient”, because there is an inverse relationship between temperature and resistance.

Since the resistance of the thermistor changes as temperature changes, it is possible to measure the temperature by measuring the resistance. The resistance value at a certain temperature can be obtained by calibration, and the temperature can be obtained by measuring the resistance. The resistance change of the SB252J1K thermistor with the change of temperature is shown in the following figure:

The use of SB252J1K thermistor and its application field are as follows:

Application Fields

SB252J1K thermistors are commonly used in applications such as air conditioner, refrigerator, dishwasher, oven, LCD displays, exhaust gas analysis, automotive cooling systems, home appliances, temperature control and HVAC systems. They can be used for temperature compensation, rapid temperature measurement, temperature monitoring, automotive temperature regulation and controller protection.

In addition, SB252J1K thermistors are also widely used in many tests in laboratories, such as calibration of calorimeters, measurement of thermal stability and aging rate, temperature control of test chambers and instrumentation.

Conclusion

SB252J1K thermistors are widely used in the field of temperature measurement, ranging from automotive applications to home appliances. Its working principle is based on the negative temperature coefficient, meaning that when the temperature increases, its resistance decreases, and when the temperature decreases, its resistance increases. With the right calibration, the temperature of the thermistor can easily be determined.