The temperature-resistance characteristic of a thermistor is described as:

The temperature-resistance characteristic of a thermistor is non-linear due to the way its resistance changes with temperature. Unlike a linear relationship, where resistance would change uniformly with temperature, thermistors exhibit a rapid change in resistance over a specific temperature range. This is primarily due to the materials used in thermistors, which often have semiconductor properties; therefore, the relationship can be represented by a curve rather than a straight line.

In practical applications, this non-linear characteristic can make thermistors very sensitive to small changes in temperature, which is beneficial for precise temperature measurements. Understanding this non-linear behavior is crucial for anyone working with thermal management and monitoring systems, as it influences how the device will be integrated into control systems and how it will respond to temperature variations.