Littelfuse, Inc.
PPTC HEATING ELEMENT HAVING VARYING POWER DENSITY
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Abstract:
A pPTC heating device having areas with different power densities distributed over the surface of the device. The device is constructed using a base layer composed of a pPTC material having a layer of sectioned conductive plates disposed over and under the layer of pPTC such as to control the path of the current through the device, thereby controlling resistance of the device and the power density of the device.
Status:
Application
Type:
Utility
Filling date:
15 Oct 2020
Issue date:
21 Apr 2022