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Application of NTC Thermistor SN0402X103F3950FB in Automobile Air Conditioning

2023-06-13

Thermistor refers to a thermistor whose resistance decreases significantly with the rise of temperature and has a negative temperature coefficient.

The relationship between the resistance value and temperature of the NTC thermistor is approximately in line with the exponential function law, and can make a resistance-temperature characteristic curve, the resistance value and temperature into a one-to-one corresponding relationship, using the resistance temperature characteristics of the NTC thermistor, the temperature can be calculated by measuring the resistance value, which is the basis of the temperature measurement of the NTC thermistor.

Typical Application

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SN0402X103F3950FB Parameters are as follows

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This device is 0402 patch package, small size, convenient PCB layout, 25℃ room temperature resistance is 10KΩ±1%, B(25/50℃)=3950±1%, resistance and B value accuracy is very high, error range is ±1%, can be accurate temperature compensation.
At present, Shuokai's patch NTC adopts a mature thick film manufacturing process, printing a layer of thick (30uM) NTC ceramic material on the ceramic substrate, and then matching a special electrode structure, and then sintering.

Product features are as follows

1The overall thickness of the product is thin, and the reaction time to temperature is extremely fast.

2Due to the thick film structure, the thermal shock caused by welding is very small, suitable for applications requiring high stability and reliability.

3The resistance value can be corrected, and the temperature detection accuracy of the whole temperature range can be ±0.1℃.

4The resistance value and B value adjustment of the product are less affected by the size and are more flexible.

5The special end electrode structure can release the mechanical stress caused by thermal shock and circuit board bending, and the bending test has little impact on the performance of the product.

6When thermal collapse occurs, it will be safely disconnected and the product will not overheat.