Can ordinary resistors replace thermistors?

Can ordinary resistors replace thermistors? I believe that everyone is concerned about this issue. Ordinary resistors cannot be replaced with thermistors. Because the resistance of the ordinary resistor is almost constant, it does not change with temperature, and the temperature value of the thermistor changes, which may cause the circuit to work abnormally.

Thermistors are a class of sensitive components that are divided into positive temperature coefficient thermistors (PTC) and negative temperature coefficient thermistors (NTC) according to the temperature coefficient. Thermistors are typically characterized by temperature sensitivity and exhibit different resistance values at different temperatures. The positive temperature coefficient thermistor (PTC) has a higher resistance value at higher temperatures, and the lower the resistance value of the negative temperature coefficient thermistor (NTC) at higher temperatures, they belong to the semiconductor device.

The main features of the thermistor are:

1 The sensitivity is higher, and the temperature coefficient of resistance is 10 to 100 times larger than that of metal, and the temperature change of 10-6 ° C can be detected;

2 Wide operating temperature range, room temperature device is suitable for -55 ° C ~ 315 ° C, high temperature device temperature is higher than 315 ° C (currently high can reach 2000 ° C), low temperature device is suitable for -273 ° C ~ -55 ° C;

3 small in size, able to measure the temperature of the voids, cavities and blood vessels in the body that other thermometers cannot measure;

4 easy to use, the resistance value can be arbitrarily selected between 0.1 ~ 100kΩ;

5 easy to process into complex shapes, can be mass produced;

6 good stability and strong overload capability.

The rules of substitution should be understood clearly. If you don’t understand it, you can consult the relevant personnel to find a solution.