A high voltage power fuse having a dramatically reduced size facilitated by silicated filler material, a formed fuse element geometry, arc barrier materials and single piece terminal fabrications. Methods of manufacture are also disclosed.

A high voltage power fuse having a dramatically reduced size facilitated by silicated filler material, a formed fuse element geometry, arc barrier materials and single piece terminal fabrications. Methods of manufacture are also disclosed.

A cryogenic fuse comprising a superconducting element arranged in a first chamber, the first chamber containing a cryogenic fluid, the cryogenic fuse being such that the superconducting element comprises a breaker initiation zone configured to determine a melting current and the first chamber is surrounded by a second chamber, placed under vacuum. The melting current or a melting time of the breakdown initiation zone may be adjusted.

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 element includes a low-melting-point metal plate, a first high-melting-point metal layer, and a second high-melting-point metal layer. The low-melting-point metal plate has a first main surface, a second main surface, a first side surface, and a second side surface. The first main surface and the second main surface face each other. The first side surface and the second side surface face each other and each connect the first main surface and second main surface. The first high-melting-point metal layer is disposed on the first main surface and second main surface. The second high-melting-point metal layer is disposed on the first side surface and second side surface. The fuse element has a cut-out portion in which at least a portion of the second high-melting-point metal layer is cut out.

A fuse element as well as a fuse device and protective device using the same which are capable of suppressing generation of defects such as cracks in a high melting point metal layer, maintaining good conduction, and maintaining blowout properties. The fuse element includes a laminated low melting point metal layer and high melting point metal layer and at least one peak among peaks in an X-ray diffraction spectrum (2) of a surface of the high melting point metal layer has a full width at half maximum of 0.15 degrees or less.

A fuse element as well as a fuse device and protective device using the same which are capable of suppressing generation of defects such as cracks in a high melting point metal layer, maintaining good conduction, and maintaining blowout properties. The fuse element includes a laminated low melting point metal layer and high melting point metal layer and at least one peak among peaks in an X-ray diffraction spectrum (2) of a surface of the high melting point metal layer has a full width at half maximum of 0.15 degrees or less.

Some embodiments include a fuse having a tungsten-containing structure directly contacting an electrically conductive structure. The electrically conductive structure may be a titanium-containing structure. An interface between the tungsten-containing structure and the electrically conductive structure is configured to rupture when current through the interface exceeds a predetermined level. Some embodiments include a method of forming and using a fuse. The fuse is formed to have a tungsten-containing structure directly contacting an electrically conductive structure. An interface between the tungsten-containing structure and the electrically conductive structure is configured to rupture when current through the interface exceeds a predetermined level. Current exceeding the predetermined level is passed through the interface to rupture the interface.

Some embodiments include a fuse having a tungsten-containing structure directly contacting an electrically conductive structure. The electrically conductive structure may be a titanium-containing structure. An interface between the tungsten-containing structure and the electrically conductive structure is configured to rupture when current through the interface exceeds a predetermined level. Some embodiments include a method of forming and using a fuse. The fuse is formed to have a tungsten-containing structure directly contacting an electrically conductive structure. An interface between the tungsten-containing structure and the electrically conductive structure is configured to rupture when current through the interface exceeds a predetermined level. Current exceeding the predetermined level is passed through the interface to rupture the interface.

Devices and systems are provided that incorporate fusible links within the electrical traces of a battery module voltage sensing circuit. The fusible links can be integrally formed in an electric trace and provide an overcurrent protection feature for the circuit without requiring fuse elements or components that are separate from the electrical trace. Each of these fusible links include a substantially flat controlled cross-sectional area disposed along a length of the material making up the electrical trace. In an overcurrent situation, the connection between a battery management system and a battery cell may be severed by the overcurrent melting the fusible link. The electrical traces may be spaced apart from one another in the circuit such that an overcurrent situation breaking the connection between one cell and the battery management system would not affect adjacent electrical traces not having an overcurrent situation.