PTC Heater

The Positive Temperature Coefficient heaters better known as PTC heaters or Carbon PTC are known for their self-regulating features. They are characterized by their capacity to operate at a nearly constant temperature over a broad range of voltage and dissipation conditions.

What do Backer Heating Technologies PTC heaters offer?

Backer Heating Technologies has been producing PTC heaters for over 20 years with our own formula mixture. Circuit traces can be made of either silver or aluminum. Our experience has given us the capacity to manufacture these heaters in many different configurations. This includes options such as connecting multiple Carbon PTCs in parallel to provide constant heating over large areas.

In most cases the polymer resistor is printed across the entire heater and hence gives a very even temperature distribution. The PTC effect makes the heater self-limiting and hence hot and cold spots are avoided. The printed polymer heaters are also more corrosion resistance than metal heaters.

Benefits and applications of Backer Heating Technologies Carbon PTC heaters

Benefits of using these types of heaters are that they are self-regulating, have a robust design that can allow small damages without destroying the functionality, and are corrosion resistant. Our experience, production process, and global sourcing on this type of heater have given us the ability to provide very cost effective prices. Backer Heating Technologies heaters have a wide array of applications including automotive side rear view mirrors, floor heating, waterbed heaters, and a variety of other low temperature applications.


 Technical Specifications

Max. element temp. °C,(°F)


Min. element temp.°C,(°F)


Dielectric strength at 20°C as per ASTM KV/mm


Thermal conductivity at 100°C W/m °K


Moisture absorption as per ASTM D-570-63.
(24 hour immersion at 23°C) %


Waterproof as per IEC 335-1 sect. 15-16


Constant of dielectricity at 25°C, 50 Hz


Bending radius, min. mm


Max. element width mm


Power density W/cm2

0.3 W/cm2 at -40°C

Resistance tolerance

± 20%

Rated voltage

230 V




Possible Substrates: PET