HieL is a professional PTC heater production company that
produces various models of PTC elements and
provides Heating solutions in consideration of uses and
characteristics required by customers.
※ PTC heater for automobile is a description of a system that operates heating through electric heating before the engine temperature of the vehicle reaches a limit temperature.
※ Since electric automobile, which have recently been expanding, do not have an engine room, a PTC heater is used as the main heating device to heat the inside of vehicle.
※ In case of PTC for heater, when voltage is applied, it generates heat at a constant temperature without a sensor and temperature control circuit.
※ By applying these characteristics, it’s expanded to heater parts for home appliances and various products that require stability.
※ In various electric/electronic circuits, there is a sensor function using the characteristic that the resistance value changes according to the change of the ambient temperature outside the PTC
※ When an abnormal current (overcurrent) flows into various electric/electronic circuits, the resistance rises rapidly due to the PTC self-heating phenomenon caused by Jule heat, thereby cutting off the current in the series circuit.
※ When voltage between two terminals is low, electrical resistance has a characteristic that, on the contrary, resistance decreases when voltage rises above a limit temperature.
※ It’s used as a bypass to protect other electronic components from high voltage.