The disclosed concept relates generally to overlay composite fuse elements, materials for their construction that include copper and silver metals, and methods of production and fabrication using metal stamping and ultrasonic welding processes. In certain embodiments, a composite overlay fuse element includes a composite metal material 37 constructed of silver and copper metals, which includes a plurality of strain absorbing bend features 39 constructed of copper metal, and a plurality of arc interrupting weak spot features 43 constructed of a silver metal portion and a copper metal portion. The silver and copper metal portions on each of the plurality of arc interrupting weak spot features 43 are connected by a weld joint surface 45 that is structured to form an overlay of the silver and copper metal portions.

An electronic assembly, has at least one circuit board with conductor tracks, at least one current-limiting arrangement in the form of a thermal predetermined breaking point in at least one of the conductor tracks, and a fire-containment device in the region of the current-limiting arrangement.

A fuse may include a leadframe including a first terminal having a first end and a second end, and a second terminal having a first end and a second end. A bridge may connect the respective second ends of the terminals. The bridge may have one or more protrusions disposed between the terminals and may be extended from the bridge. A base may have first and second apertures, and the first and second terminals may be at least partially disposed into the respective first and second apertures. The base may further include one or more indentations such that respective ends of the one or more protrusions are received in each of the one or more indentations. A plurality of wires may be connected from the first terminal to the second terminal, and each of the protrusions therebetween.

A method of making printed circuit board vias using a double drilling and plating method is disclosed. A first hole is drilled in a core, the first hole having a first diameter. The first hole is filled and/or plated with an electrically conductive material. A circuit pattern may be formed on one or two conductive layers of the core. A multilayer structure may then be formed including a plurality of cores that also include pre-drilled and plated via holes, wherein at least some of the pre-drilled and plated via holes are aligned with the first hole. A second hole is then drilled within the first hole and the aligned pre-drilled and plated holes, the second hole having a second diameter where the second diameter is smaller than the first diameter. A conductive material is then plated to an inner surface of the second hole.

The invention relates to a melting fuse, especially for a motor vehicle that has a high-voltage circuit, comprising an electrically insulating housing inside of which there is a fusible conductor that connects two contacts with each other, whereby, between two longitudinal areas that are adjacent to each other, the fusible conductor has a rotation point around which the longitudinal areas can be rotated in case of a thermo-mechanical expansion.

A sealed fuse in accordance with the present disclosure may include a tubular fuse body, a trench formed in an exterior of the fuse body, and an electrically conductive endcap that fits over an end of the fuse body and is fastened to the fuse body by an electrically conductive material having a lip portion that extends into the trench to provide a barrier that extends between the fuse body and the endcap. In an embodiment, the trench may be formed in an end face of the fuse body and may extend entirely around an opening in the end of the fuse body. In another embodiment, the trench may be formed in an outwardly-facing surface of a sidewall of the fuse body and may extend entirely around the fuse body.

Fuse assemblies are disclosed. In one implementation, a fuse assembly may be disposed that includes a first portion of the second portion. The first portion may be formed of a first metal. The second portion may be formed of a second metal different from the first metal. The second metal may be copper, and the copper may be tin plated or silver plated.

A pressure resistant housing for an electric component, which pressure resistant housing is adapted for use in subsea applications. The pressure resistant housing includes a first ceramic body arranged to accommodate the electric component, which first ceramic body is provided with a first opening and a second opening, a first metal lid for closing the first opening, a first annular sealing member arranged to provide a fluid tight seal between the first metal lid and the first opening, a first clamp arranged to clamp the first metal lid to the first ceramic body, a second metal lid for closing the second opening, a second annular sealing member arranged to provide a fluid tight seal between the second metal lid and the second opening, and a second clamp arranged to clamp the second metal lid to the first ceramic body.

A pattern fuse includes a lower film layer, an adhesive layer stacked on the lower film layer, a circuit pattern made of a conductive material and provided on the adhesive layer, an upper film layer stacked on the adhesive layer and the circuit pattern and a coating layer configured to cover the opening of the upper film layer, wherein the coating layer includes a flame retardant material. The upper film layer has an opening formed therein that is configured to allow a part or the entirety of the circuit pattern to be exposed therethrough. A method of manufacturing the pattern fuse is also provided.

A fuse including a fuse body, a fuse element including a first terminal end extending from a first end of the fuse body, and a second terminal extending from a second end of the fuse body, wherein at least one of the first terminal end and the second terminal end extending out of the respective first and second ends of the fuse body include a strain relief feature, and wherein the strain relief feature is configured to flex in response to thermal fluctuation of the fuse or the surrounding components to which it is attached.