Abstract: Disclosed is a heating device comprising a plate-shaped ceramic PTC resistor having a thickness, a front side, a back side and narrow sides, wherein the distance from the front side to the back side equals the thickness, and a first contact element and a second contact element, which are electrically contacting the PTC resistor. The PTC resistor is electrically contacted by the contact elements on opposite narrow sides.

Abstract: Disclosed is a heating device comprising a plate-shaped ceramic PTC resistor having a thickness, a front side, a back side and narrow sides, wherein the distance from the front side to the back side equals the thickness, and a first contact element and a second contact element, which are electrically contacting the PTC resistor. The PTC resistor is electrically contacted by the contact elements on opposite narrow sides.

Abstract: Disclosed is a heater comprising a PTC heating resistor based on barium titanate. The PTC heating resistor is printed onto a substrate. Also disclosed is a method for manufacturing such a heater.

Abstract: A temperature sensor includes a substrate, a platinum resistor arranged on at least one surface of the substrate, a protective layer covering at least a portion of the platinum resistor and a cover layer covering at least a portion of the protective layer, the cover layer including Al2O3, SiO2 and Y2O3. The cover layer may also include B2O3. A conductive wire may be electrically connected to the platinum resistor. A glass ceramic may be covering at least a portion of the conductive wire, platinum resistor, protective layer and cover layer.

Abstract: An inventive heating rod is disclosed. The heating rod has a ceramic heating element, a first strip-shaped contact sheet and a second strip-shaped contact sheet. The ceramic heating element is arranged between the first contact sheet and the second contact sheet, and a metal housing is provided in which the heating element and the contact sheets are arranged. The housing is provided with a dielectric coating.

Abstract: This disclosure refers to a vehicle lamp heater, comprising a PTC heating resistor, a metallic cooling body fixed to the PTC heating resistor, and a holder holding the PTC heating resistor and the metallic cooling body. Also disclosed is vehicle lamp comprising a plastic housing with a transparent cover and such vehicle lamp heater.

Abstract: Disclosed is an electrical heating device for heating the interior of a vehicle, comprising a plurality of PTC heating rods each comprising ceramic PTC heating resistors, heat sinks for transferring heat from the PTC heating rods to an air flow, and a holder holding the PTC heating rods. The PTC heating rods are connected in series to an NTC heating rod comprising at least one NTC resistor, wherein the NTC heating rod is held by the holder.

Abstract: Disclosed is a heating resistor comprising a body of a ceramic PTC resistor material with at least one face of the body coated by a layer of an NTC material. The combination of a PTC resistor and an NTC resistor limits the inrush current at the beginning of a heating process when the PTC resistor is still cold and therefore has a low electrical resistance. When the resistor is heated, the electrical resistance of the NTC resistor decreases while the electrical resistance of the PTC resistor increases. Thus, the electric current changes less until the PTC resistor reaches its critical temperature where its electrical resistance increases by several orders of magnitude. The lowering of electrical current at the beginning of the heating process is especially advantageous in applications that rely on a limited power supply, for example a car battery.

Abstract: Disclosed is an electrical heating device for heating the interior of a vehicle, comprising a plurality of PTC heating rods each comprising ceramic PTC heating resistors, heat sinks for transferring heat from the PTC heating rods to an air flow, and a holder holding the PTC heating rods. The PTC heating rods are connected in series to an NTC heating rod comprising at least one NTC resistor, wherein the NTC heating rod is held by the holder.

Abstract: Disclosed is a heater comprising a PTC heating resistor based on barium titanate. The PTC heating resistor is printed onto a substrate. Also disclosed is a method for manufacturing such a heater.

Abstract: A temperature sensor includes a substrate, a platinum resistor arranged on at least one surface of the substrate, a protective layer covering at least a portion of the platinum resistor and a cover layer covering at least a portion of the protective layer, the cover layer including Al2O3, SiO2 and Y2O3. The cover layer may also include B2O3. A conductive wire may be electrically connected to the platinum resistor. A glass ceramic may be covering at least a portion of the conductive wire, platinum resistor, protective layer and cover layer.