Abstract: A core comprising a winding core part extending in an axial direction; and flange parts respectively disposed at opposite ends of the winding core part in the axial direction. Each of the flange parts has an inner surface facing toward the winding core part, an outer surface facing toward the side opposite to the inner surface, and a lower surface connecting the inner surface and the outer surface. At least one of the flange parts has a groove portion opened in the lower surface and the inner surface. Also, a width of a bottom surface of the groove portion is widened from the inner surface toward the outer surface.

Abstract: A coil component includes a terminal electrode and a terminal of a wire connected by thermocompression bonding on a bottom surface of a flange portion, to achieve a strong fixing force without the terminal of the wire protruding from the terminal electrode. A terminal of a wire extends along a main surface of a terminal electrode while at least a part of the terminal is disposed in the terminal electrode, and has a top surface positioned on a side opposite to a bottom surface side of a flange portion with respect to the main surface. A fillet surface which rises from the main surface toward the top surface and forms a concave curved surface is on an outer surface of the terminal electrode. The main surface is configured by a solder wettable layer made of tin or a tin alloy as an outermost layer of the terminal electrode.

Abstract: A multilayer coil component includes a body formed by multiple insulating layers stacked in a direction of stacking and having first and second end surfaces opposite each other in a length direction, first and second main surfaces opposite each other in a height direction, perpendicular to the length direction, and first and second lateral surfaces opposite each other in a width direction, perpendicular to the length direction and to the height direction; a coil inside the body and including multiple coil conductors electrically coupled together; and a first outer electrode extending from at least part of the first end surface of the body to part of the first main surface and electrically coupled to the coil. The direction of stacking of the insulating layers and the direction of the coil axis of the coil are parallel with the first main surface, which is the mounting surface, of the body.

Abstract: A common mode choke coil includes an element body of laminated insulating layers; electrically insulated first and second coils in the element body; first and second outer electrodes on the element body electrically connected to ends of the first coil; and third and fourth outer electrodes on the element body electrically connected to ends of the second coil. The first coil includes first to third coil conductors on first to third insulating layers. The second coil includes fourth to sixth coil conductor on fourth to sixth insulating layers. The second and third coil conductors are electrically connected via a via conductor overlapping at outer ends of the conductors. A dummy conductor overlapping the via conductor is provided on at least one of the first, fourth, fifth, and sixth insulating layers other than between the second and third insulating layers and electrically insulated from all the coil conductors.

Abstract: An Isolating Transmission Line Transformer (ITLT) for use in a data communications system is provided, the transformer comprising: a substantially planar substrate formed of electrically insulative material having opposed first and second surfaces; a first port formed of two separate terminals provided at one part of the substrate; a second port formed of two separate terminals provided at a second part of the substrate; a first conductor connected in series to the first port and arranged as a single loop; a second conductor which is electrically isolated from the first conductor and connected in series to the second port, the second conductor being arranged as a single loop in a substantially opposite orientation to the first conductor; wherein the first and second ports and at least part of the first and second conductors are provided on the substrate surface(s); and a core arranged between the first and second ports to cover the majority of the first and second conductors.

Abstract: A transformer device includes a first and a second trace, a first and a second connection member, and a first input/output member. A second sub-trace of the first trace is coupled to a first sub-trace of the first trace at a first and a second area. The first connection member is coupled to the first and the second sub-trace. The first and a third sub-trace of the second trace are disposed in turn. A fourth sub-trace of the second trace is coupled to the third sub-trace at the first and the second area. The second and the fourth sub-trace are disposed in turn. The second connection member is coupled to the third and the fourth sub-trace. The first sub-trace includes first wires, and the first input/output member is coupled to the first wire which is located at an inner side among the first wires.

Abstract: A choke includes at least one winding each having two connections, and a magnetic core having an air gap, wherein a coil body made up of at least two parts is provided for receiving the at least one winding, and a base plate that can be connected to the coil body is also provided. The at least two parts of the coil body and the base plate include first latching elements and second latching elements for tool-free connecting the at least two parts of the coil body and for tool-free connecting the base plate to the coil body, and the magnetic core is built up from sheets stacked one on top of the other, and the base plate is designed to receive the sheets of the magnetic core.

Abstract: In a multilayer coil component, a coil is configured by electrically connecting coil conductors respectively provided in magnetic body layers constituting an element body and metal magnetic particles have a normal particle having an ellipsoidal shape and flat particles having an ellipsoidal shape flatter in a thickness direction than the normal particle. A plurality of the normal particles and at least one of the flat particles disposed such that a surface (reference surface) including a major axis direction orthogonal to the thickness direction and a minor axis direction is along the forming surface of the coil conductor in the magnetic body layer are arranged in the lamination direction of the magnetic body layers between the coil conductors.

Abstract: In a multilayer coil component, a part filled with a resin and a void part not filled with the resin exist between a plurality of metal magnetic particles in an element body, one main surface of the element body is a mounting surface with respect to an external electronic component, and the edge of an external electrode is positioned on the mounting surface. In the element body, a high void region where the porosity caused by the void part is higher than the porosity of the other part in the element body extends from the edge of the external electrode on the mounting surface toward an end surface of the element body.

Abstract: Coil formers having flanges selectedly removed at interface areas with a core can provide advantages of increase a winding window and better heat transfer. The coil former can also have added flanged adjacent to the core to provide added protection to the core. Examples of e-cores and PQ cores are shown.

Abstract: A leakage transformer includes a core and a printed wiring board. The core includes a first magnetic leg and a second magnetic leg. The second magnetic leg is spaced from the first magnetic leg. The printed wiring board includes an insulating portion and conductor wiring. The conductor wiring includes a first coil and a second coil. The first coil is formed of a first winding and is wound around only the first magnetic leg, not around the second magnetic leg. The second coil is formed of a second winding and includes a first part and a second part. The first part is wound around only the first magnetic leg, not around the second magnetic leg. The second part is wound around both the first and second magnetic legs.

Abstract: When an inductor component is adopted as an inductor for a DC-DC converter, high efficiency is achieved at a light load, and a large current is also handled. An inductor component includes a body containing metal magnetic powder containing an iron element, and an inductor provided in the body and having both ends exposed from the body. In a DC superposition characteristic curve of the inductor, a first steady region and a second steady region exist as a steady region, and a transition region exists between the first steady region and the second steady region.

Abstract: A magnetic-component module includes a substrate, a header on the substrate, a core, a winding including a trace on the header, and an overmold material encapsulating the header, the core, and the trace.

Abstract: An inductor component comprising a spiral wiring wound on a plane; first and second magnetic layers located at positions sandwiching the spiral wiring from both sides in a normal direction relative to the plane of the wound spiral wiring; a vertical wiring extending from the spiral wiring in the normal direction to penetrate at least the inside of the first magnetic layer; and an external terminal disposed on at least a surface of the first magnetic layer to cover an end surface of the vertical wiring. The first magnetic layer is larger than the second magnetic layer in terms of the area of the external terminal viewed in the normal direction, and when A is the thickness of the first magnetic layer and B is the thickness of the second magnetic layer, A/((A+B)/2) is from 0.6 to 1.6.

Abstract: An electronic component according to the present invention includes: an element body containing metal particles and a resin; and a resin electrode layer formed on an electrode facing portion which is a part of an outer surface of the element body. The resin electrode layer contains a resin component and a conductor powder. In addition, the electrode facing portion includes an exposed portion formed by removing the resin on an outermost surface of the element body to expose a part of an outer periphery of the metal particles located on the outermost surface. Then, the resin electrode layer and the exposed portion of the electrode facing portion are joined to each other.

Abstract: Disclosed herein is a coil component that includes: a drum-shaped core including a first flange part, a second flange part, and a winding core part positioned between the first and second flange parts; a plurality of first terminal electrodes provided on the first flange part; a plurality of second terminal electrodes provided on the second flange part; and a plurality of wires wound around the winding core part, each of the plurality of wires having a first end connected to an associated one of the first terminal electrodes, and having a second end connected to an associated one of the second terminal electrodes. Each of the first and second flange parts has a tapered groove whose side surfaces are inclined. The plurality of wires are accommodated in the tapered grooves.

Abstract: A coil component includes a core, a conductive wire, and a solder portion. The core includes a mounting surface extending from one end to the other end along a one-axis direction, a recessed portion connected to the one end of the mounting surface in the one-axis direction and recessed from the mounting surface, and an end surface connected to the recessed portion. The conductive wire has one end disposed at the recessed portion. The solder portion is provided at the recessed portion to be electrically connected to one end of the conductive wire. The solder portion includes a peak projecting from the mounting surface, an inner region located farther from the end surface than the peak in the one-axis direction, and an outer region located closer to the end surface than the peak in the one-axis direction and having a larger volume than the inner region.

Abstract: The present disclosure provides a multi-phase coupled inductor, a multi-phase coupled inductor array and a two-phase inverse coupled inductor. The multi-phase coupled inductor includes a magnetic core having longitudinal middle columns and windings respectively wound around the longitudinal middle columns. A magnetic flux direction of a DC magnetic flux generated by a current flowing through any one of the windings is opposite to a magnetic flux direction of a DC magnetic flux generated by a current flowing through other one of the windings, on the longitudinal middle column corresponding to the other one of the windings.

Abstract: A coil component is capable of reducing specific resistance of a coil and reliably mitigating stress. A coil component includes a base body and a coil disposed in the base body. The base body includes a plurality of magnetic layers laminated in a first direction. The coil includes a plurality of coil wires laminated in the first direction. The coil wires extend along a plane orthogonal to the first direction. Each of the coil wires includes a first coil conductor layer and a second coil conductor layer laminated in the first direction. Specific resistance of the first coil conductor layer is smaller than specific resistance of the second coil conductor layer.

Abstract: A magnetic-inductance component is a multi-turn closed coil connected head to tail and wound around a magnetic circuit. A magnetic-inductance value of the magnetic-inductance component is adjusted by selecting metal conductors with different numbers of turns, materials, cross-sectional areas, and lengths to change an amplitude and phase of a magnetic flux of the magnetic circuit. The present invention changes the operating state and operating trajectory of a vector in the magnetic circuit by adding the magnetic-inductance component to the magnetic circuit or removing the magnetic-inductance component from the magnetic circuit, to make a state of a magnetic flux vector in the magnetic circuit to be consistent with a target magnetic flux vector state. A magnetic circuit vector model built by using the magnetic-inductance component as a core is more consistent with the actual physical situation, which is beneficial to the improvement of the accuracy of magnetic circuit analysis and calculation.