Features of PTCs
1.Compatible with multiple voltages
Semiconductors can be used with multiple voltages within a specific range, for example most PTC heaters can be run at 230V and 400V without any noticeable change in power.
2.Adaptability to Dynamic Power
The power output of a PTC heating element depends on how much heat it can absorb. If it gets a lot of heat from the semiconductor, it automatically readjusts its temperature and increases power. Once the maximum temperature is reached, the power drops again and hardly any current flows. PTC heating elements are particularly energy-efficient because they can self-adjust dynamically with respect to power.
Inrush current PTC heaters will have a few seconds of inrush current increase every time they are turned on, so we recommend using a time-delay fuse to protect the application system.
Temperature self-limiting Since the natural resistance of the PTC increases with temperature, it achieves temperature self-limiting. Once the maximum temperature is reached, the semiconductor becomes non-conductive and settles due to physical effects. Due to this effect, PTCs are particularly safe and do not require any additional thermal fuses. Current load for low voltage applications
Low voltage applications draw much higher currents than domestic applications (230V) due to Ohm's law; therefore, it is important to ensure a sufficiently large wire cross section.
