Fuse with thin film fusible element supported on a substrate
AssigneeGould Inc.
InventorDavid E. Suuronen
Life of this patent
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Abstract
A fusible element component for use in an electrical fuse, the component including a substrate made of insulative material and having a substrate surface, a fusible element made of a thin film of conductive material that is supported on the substrate, overlies a fusible element support area of the substrate surface, and provides a conductive path during normal current conditions, and a resistance element of resistance element material that is supported on the substrate, overlies a resistance element support area of the substrate surface that is a different area of the substrate surface than the fusible element support area, and is electrically in parallel to the fusible element to provide a shunt path during clearing of the fusible element during overcurrent conditions.
Claims28
A fusible element component for use in an electrical fuse, said component comprising,
- a substrate made of insulative material and having a substrate surface,
- a fusible element made of a thin film of conductive material that is supported on said substrate, overlies a fusible element support area of said substrate surface, and provides a conductive path during normal current conditions, and
- a resistance element of resistance element material that is supported on said substrate, overlies a resistance element support area of said substrate surface that is a different area of said substrate surface than said fusible element support area, and is electrically in parallel to said fusible element to provide a shunt path during clearing of said fusible element during overcurrent conditions.
A fuse comprising
- a fuse casing,
- terminals attached to said fuse casing,
- a substrate made of insulative material and having a substrate surface, said substrate being located in said fuse casing,
- a fusible element made of a thin film of conductive material that is supported on said substrate, overlies a fusible element support of said substrate surface and is connected to provide a conductive path between said terminals during normal current conditions, and
- a resistance element of resistance element material that is supported on said substrate, overlies a resistance element support area of said substrate surface that is a different area of said substrate surface than said fusible element support area, and is electrically in parallel to said fusible element between said terminals to provide a shunt path during clearing of said fusible element during overcurrent conditions.
Dependencies are inferred from the claim text.