What will happen if the PTC heater temperature is too high
The PTC heater is a typical direct-heating step-type positive temperature coefficient thermistor. When the temperature increases above the Curie temperature, its resistance value increases stepwise, reaching 4 to 10 orders of magnitude. The temperature change can be obtained by the current flowing through the thermistor, or by the external input heat energy or the superposition of the two. Based on the above characteristics, PTC can be used in circuits for overcurrent protection, overheat protection, temperature measurement, temperature compensation, delayed start, demagnetization, etc., so it is widely used in circuits.
ptc electric heater is the meaning of positive temperature coefficient. The meaning of negative temperature coefficient. The mutant PTC thermistor of the PTC heater is subdivided into two categories. The high-temperature fan is a ceramic PTC thermistor, and the PTC effect can be found after mixing with semiconducting elements. Incorporating carbon black into polyethylene polymer material causes the PTC effect.
The PTC heater heats up quickly, can automatically control the temperature in the event of fan failure, has a long service life, and has a wide range of voltage usage. It can be designed between 12V and 380V according to needs. The design is convenient. It can be designed arbitrarily from low power to high power. Designed according to requirements, no incineration, safe and reliable, no redness and no open flame when PTC heats up. In low- and medium-power heating places, PTC heating has constant temperature heating, no open flame, high heat conversion rate, minimal influence by power supply voltage, and natural life. Long and other traditional heating components have incomparable advantages, and the use of electric heating appliances is more and more favored by R&D engineers.