The difference between thermal switch and thermistor, see the name keyword is good, one is a resistor, one is a switch. \"Switch\" generally means that its state is similar to that of a digital circuit, which is not on or off, and there is no third state. PTC itself has an infinite number of output possibilities. PTC thermistor is a typical temperature-sensitive semiconductor resistor. When the temperature exceeds a certain temperature (Curie temperature), its resistance value increases step by step with the increase of temperature.
The difference between thermistor and thermistor is that their design is different, the former is simple and refined, the latter is complex and meticulous, while the former has good sensitivity and low resistance, the latter has superior heat resistance, large resistance, and can effectively protect the safety of the line.