The cold pressure welding apparatus includes a first holding part capable of sandwiching a first flat conductor, a second holding part disposed opposite to the first holding part and capable of sandwiching a second flat conductor, and a drive part for moving the first holding part and the second holding part. The drive part can move the first holding part and the second holding part between a first direction separated position and a close position along a first direction. The drive part can move the first holding part and the second holding part between a second direction separated position and a sandwiching position along a second direction.

A magnetic assembly includes a magnetic core including at least one winding leg and at least one winding. The at least one winding inductively coupled to the magnetic core and wound around the at least one winding leg. The at least one winding includes a foil conductive material and a tape. The tape includes a thermally conductive adhesive layer and an electrically insulating layer.

A coil component includes: a body including one surface and one side surface and the other side surface respectively connected to the one surface and opposing each other; a coil portion disposed within the body; a marker disposed on the one surface of the body; and a coating layer disposed on the one surface of the body to cover the marker, wherein the coating layer includes a light-transmitting resin.

A surface mount inductor includes a molded body made of a composite material containing a magnetic powder, and a metal plate including a first metal plate portion that is buried in the molded body and second metal plate portions that extend from the first metal plate portion to outside the molded body. The second metal plate portions each include a first bent portion that extends from a side surface of the molded body and is bent in a direction that intersects the mounting surface and a second bent portion that is bent from the direction that intersects the mounting surface toward a side surface the molded body. The second metal plate portions extend along the molded body onto the mounting surface and form an external terminal. An internal angle of each first bent portion is formed so as to be an obtuse angle.

An inductor includes an element containing a magnetic metal powder and a resin, a coil that includes a winding portion and paired extended portions extended from both ends of the winding portion and that is embedded in the element, a pair of an external terminal electrically connected to one of the extended portions and an external terminal electrically connected to the other of the extended portions, and a conductive layer disposed on a surface of the element that crosses the winding axis of the coil. The conductive layer includes a first metal layer formed by fusing together the magnetic metal powder near the surface of the element and a second metal layer formed by plating on the first metal layer. The electrical resistivity of the second metal layer is lower than the electrical resistivity of the first metal layer.

A transformer for power line reactance injection that can be adapted in manufacturing to different operating current ranges by interchanging primary windings having one, two, three, four or more laminar turns. Through its use of gaps in the magnetic circuit that are filled with high temperature, high thermal conductivity dielectrics, this transformer has tolerance to very high fault currents, and it can be passively cooled by the use of fins on the exterior walls of the core.

In the coil component, the external terminal and the metal magnetic powder-containing resin constituting the element body are not in direct contact with each other, and thus high ESD resistance is obtained. That is, even when a high transient voltage is applied between the pair of external terminals, insulation breakdown is less likely to occur, and an improvement in breakdown voltage with respect to the transient voltage can be realized.

An electromagnetic component assembly includes a first magnetic core piece, a second magnetic core piece, and an inverted U-shaped conductive winding including a base section and first and second legs extending from base section. One of the first and second magnetic core pieces is configured to receive the base section. The first and second magnetic core pieces are gapped from one another to define a first gap, and one of the first and second magnetic core pieces includes a second gap that, in combination with the first gap, allows the component to be operated at more than one stable open circuit inductance (OCL) corresponding to different current loads.

A power inductor includes a housing and a magnetic core disposed in the housing. The core includes a first segment and a second segment spaced apart from each other to define a gap. The first and second segments are supported in the housing such that the they are movable relative to each other to increase and decrease the size of the gap. A fluid having a positive thermal expansion coefficient is disposed in the housing such that expansion and contraction of the fluid due to change in temperature increases and decreases the gap, respectively.

An inductor includes a magnetic core and a conductor member. The conductor member is configured with: an insertion part that is inserted into the magnetic core; first and second outer surface arrangement parts that are directly or indirectly connected to ends of the insertion part and are arranged along first and second outer surfaces of the magnetic core, respectively; and first and second terminal parts that are connected to the first and second outer surface arrangement parts, respectively. The insertion part includes an insertion first sub part and an insertion second sub part that is stacked on the insertion first sub part. A sum of the thicknesses of the insertion first and second sub parts is larger than a thickness of the first outer surface arrangement part and larger than a thickness of the second outer surface arrangement part.