|Cast in Heaters|
|Etched foil heaters|
|Flat Strip Heaters|
|Over The Side Heaters|
|Through Flow Heaters|
Description of the PTC heating element
PTC heating elements are composed of PTC thermistors and aluminium housing that are joined by soldering, gluing or crimping. A PTC thermistor is a semiconductor that changes its properties depending on temperature. The internal resistance increases with increasing temperature after a defined temperature is reached (reference temperature). The high Positive Temperature Coefficient (PTC) has given the PTC thermistor its name.
Typical features of PTC heaters:
Basics PTC technology
The PTC thermistor is also known as PTC resistor, a treated Polycrystalline ceramic based on barium titanate (BaTiO3). Specific treatment procedures provide that one can obtain high conductivity in the material at relatively low temperatures. In the low temperature area the PTC thermistor acts as a classical semiconductor with a Negative Temperature Coefficient (NTC). When one exceeds the defined reference temperature, resistance increases rapidly with factor 10 (Logarithmic).
The ceramics cannot reach flammable high temperatures because the resistance increases with increasing temperature under the PTC curve and in this way self-limited the power and energy that can pass through.
If you cool the ceramics the resistance will decrease and more power/energy will pass.
These characteristics are ideal for heating applications. PTC thermistors are often due to their performance referred to as "Self-regulating" or "Dynamic" heating elements.
Designing heaters based on the PTC technology requires special experience to be able to exchange the heat effectively to the environment. To take advantage of all the PTC heating benefits to its full extent optimized heat dissipation and the knowledge of best lifetime achievement. At IHP, we help our clients to design the PTC element having the best heat output with long life.
PTC Contact heaters
PTC Embedded contact heaters
PTC Heating plates
PTC Cartridge heaters in aluminium
PTC Cartridge heaters in silicone
PTC Heating block in aluminium
PTC Air heaters
PTC Convection heaters
PTC Embedded fan heaters
PTC Special solutions
|+46 (0)31 795 30 30|
|IHP gets prize as the innovation company 2008|
|Calculate your heating needs with ohm's law|