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PTC Heating Element

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PTC Heating Element

PTC constant temperature heating element has the characteristics of constant temperature heating, the principle is that PTC constant temperature heating element after adding electricity makes resistance value enter jump zone, the surface temperature of PTC constant temperature heating element will keep constant value The temperature is only related to the Curie temperature and applied voltage of the PTC constant temperature heating element, but not to the ambient temperature.

PTC heater is a heating device designed by using the constant temperature heating characteristics of PTC constant temperature heating element. In the medium and small power heating occasions, PTC heater has many advantages over traditional heating elements, such as constant temperature heating, no open flame, high heat conversion rate, little influence by power supply voltage, long natural life, etc. The application in electric heating apparatus is more and more favored by R & D engineers. PTC constant temperature heating element can be made into a variety of shapes and different specifications, the common shape of a disc, rectangular, rectangular, ring and honeycomb porous, etc. . The combination of the PTC heating element and the metal member can form various forms of high-power PTC heater.


  • PTC thermal ceramic heating elements have special functions of constant temperature, temperature regulation and self-controlling temperature. When an AC or DC voltage is applied to the PTC element, the resistivity is very low below the Curie point temperature, and the temperature rises quickly. Once the Curie point temperature is exceeded, the resistivity suddenly increases, causing its currency to drop to a stable value. To achieve the purpose of automatic temperature control and constant temperature, no additional temperature control circuit device is needed, and the Curie temperature of the PTC element can be adjusted by formula according to different temperature requirements.
  • Non-burning, safe and reliable
    The PTC element does not turn red when it is hot, and there is no open flame (resistance wire is red and open flame), and it is not easy to burn. When the ambient temperature of the PTC element exceeds the limit, its power automatically drops to an equilibrium value, and there is no danger of burning.
  • Long-life
    PTC elements are oxide ceramics, without the high-temperature oxidation disadvantages of nickel-chromium wires, and without fragile phenomena such as glass quartz tubes, and have a long life.
  • PTC components can be used under low voltage (3-36 volts) and high voltage (110-380 volts).
  • Low-voltage PTC components are suitable for various low-voltage heaters, low-temperature compensation of instruments, and various heaters for automobiles.
  • High voltage PTC components are suitable for heating the following electrical equipment: shoe dryers, hot melt glue guns, rice cookers, electric shoes, electric mosquito repellents, steam combs, steam generators, humidifiers, curlers, vending machines, wind Curtain, hand warmer, tea dryer, beauty device, bottle thermostat, etc.
  • 1. The PTC heating plate has the characteristics of automatic constant temperature. It does not require a temperature control system, and the PTC heating plate can be directly energized.
  • 2. When the PTC heating plate is used to heat a liquid (such as water), the PTC heating plate will not be damaged after the liquid is dried.
  • 3. If the PTC heating plate is used to heat cold air, the PTC heating plate will not be damaged when the air is not supplied.
  • 4. There are four types of electrodes for customers to choose: chemical nickel plating + silver, meltblown metal aluminum, printed aluminum + silver, printed aluminum.
  • 5. Long life, use under a normal environment, life can reach more than 10 years.
  • 6. Reliable work uses the internal characteristics of the PTC heating plate to control temperature, never over-temperature.
  • 7. The working voltage is very wide. When the operating voltage changes twice, the change in surface temperature is very small.
  • 8. There is no lead wire and insulation layer for this product. Customers also choose products with wire and insulation layer, or products with a shell.
  • 9. When multiple PTC heaters are used together, they should be connected in parallel, not in series.
  • 10. Different heat dissipation conditions make the heating power of the PTC heating element very different.
 Model No.Length×Width(mm)Model No.Length×Width(mm)Model No. Length×Width(mm)



  1. Electrode material: silver, silver/aluminum, aluminum;
  2. Curie temperature from 25 ° C to 300 ° C (surface temperature 80 ° C ~ 310 ° C), can be supplied according to customer requirements;
  3. Working voltage 6V ~ 380V;
  4. The resistance value is determined according to the heating speed and the inrush current requirement;
  5. The thickness of the heating piece can be adjusted according to customer requirements, the general thickness is 1.5mm~3.5mm
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