Info on PTC Heaters and their Applications
What Is a PTC (Positive Temperature Coefficient) Heater
Traditional fixed-resistance heaters work with wires and coils to generate heat. But a PTC heater element consists of ceramic materials treated with barium titanate, in the form of a white or transparent powder.
These PTC elements can also exist of conductive films/inks printed on thin, flexible polymer-based substrates such as polyester.
This technique is also known as printed electronics.
Another material for PTC elements is Silicium.
The characteristics of the material allow the PTC heater to act as a sensor, eliminating the need for any external feedback controls, and therefore there's no risk of overheating.
PTC heaters use materials that promote the electrical resistance of the material increase when the temperature increases. That's why the current flow decreases.
So, when it is cold, the material lets pass the current flow but limits the passing when the temperature goes up.
Less current flow means less power consumption (watts) which is quite efficient.
There are PTC heaters that either operate on 12V, 24V, 120V, or 240V.
A 12 Volt example of a small PTC air heater is the Fdit 12V - 100 Watt unit.
PTC heater in car, truck, small spaces, keeping enclosed equipment or tanks from freezing, using with incubators, warming up materials, outdoor pet shelters, etc.
If you use lower than 12V, you might get more heat from it. For this Fdit 12V - 100Watt PTC fan heater, see Amazon Here for more information, reviews and best pricing.
A 24 Volt example of a PTC air heater is the Fdit 24V - 250 Watt unit.
To heat small spaces, cars, trucks, air conditioners, etc.
For this Fdit 24V - 250Watt PTC heater, see Amazon Here for more information, reviews and best pricing.
A 110 Volt example of a PTC air heater is the Walfront 110V - 300 Watt unit.
To heat small spaces, in instruments, air conditioning, air curtain machine, etc.
For this Walfront 110V - 300Watt PTC heater, see Amazon Here for more information, reviews and best pricing.
Another 110 Volt example of a PTC heater is the Trustech 750/1500 Watt portable heater.
Space heater for home or office, etc.
For this Trustech 110V - 1500 Watt max. PTC heater, see Amazon Here for more information, reviews and best pricing.