Abstract: A coil component includes: a substrate body containing metal magnetic grains whose primary component is iron and which contains silicon and a metal that oxidizes more easily than iron, and an oxide layer covering the surfaces of the metal magnetic grains and joining multiple numbers of the metal magnetic grains together; a coil conductor provided in the substrate body; external electrodes provided on the surface of the substrate body and electrically connected to the coil conductor; and a bonding part positioned between the metal magnetic grains and the external electrodes, wherein the concentration of iron decreases in a substantially continuous manner from the metal magnetic grains to the external electrodes. The external electrodes can have improved joining strength.

Abstract: Aspects of multi-phase integrated coupled inductors are described. In one embodiment, a multi-phase integrated coupled inductor includes a magnetic core and a coupled set of inductors. Each inductor can include conductive vias that are asymmetrically distributed in two symmetrical core slots in the magnetic core, so that each inductor has a different number of lateral-flux vias in each slot.

Abstract: An inductor component includes an element body, a coil provided in the element body, and an outer electrode provided to the element body and electrically connected to the coil. The outer electrode includes an underlying layer embedded in the element body in which part of the underlying layer protrudes from a surface of the element body, and a coating film that covers a portion of the underlying layer exposed at the element body.

Abstract: A coil component may include a body having one surface and the other surface facing each other, and including a molded portion having a core and a cover portion disposed on the molded portion; a wound coil disposed between the molded portion and the cover portion and wound around the core; and a first accommodation groove and a second accommodation groove disposed on the one surface of the body to be spaced apart from each other, and respectively disposed outside of a region of the body corresponding to the core, wherein both end portions of the wound coil are respectively disposed in the first and second accommodation grooves, and a minimum value of a distance between the first and second accommodation grooves is greater than a diameter of the core.

Abstract: First and second wires form a wire assembly by being wound around a winding core portion together. The wire assembly includes a twisted wire portion, an inner layer portion, an outer layer portion, a plurality of outward transition portions, and an inward transition portion. The outer layer portion includes a first outer layer portion which is connected to one of the outward transition portions extending from an intermediate position of the inner layer portion and connected to the inward transition portion. The inward transition portion extends to an intermediate position of the inner layer portion.

Abstract: A coil component comprises a first wire including a winding portion wound around a winding core portion of a core, a first end portion electrically connected to a terminal electrode provided in a first flange portion, and a first extended portion connecting the winding portion and the first end portion. In a first direction, the first end portion is positioned on a first side with respect to a central axis of the winding core portion, and a first boundary portion which is a boundary portion between the first extended portion and the winding portion is positioned on a second side with respect to the central axis. A corner of the winding core portion is positioned between the first boundary portion and the first end portion in a circumferential direction. A gap is interposed between the first extended portion and the corner.

Abstract: A highly reliable coil device is provided. An inductor 1 includes a coil 2 formed of a flat wire, a first terminal 4a including a first wire connecting portion 42a formed with a first accommodation recessed portion 421a in which a first lead-out portion 3a of the coil 2 is accommodated, and a second terminal 4b including a second wire connecting portion 42b formed with a second accommodation recessed portion 421b in which a second lead-out portion 3b of the coil 2 is accommodated, in which the first accommodation recessed portion 421a and the second accommodation recessed portion 421b are displaced from each other along a winding axis direction of the coil 2.

Abstract: A multi-wire choke filter is implemented in an inverter module of a modular power control system for a vehicle. Such an inverter module includes gate driver circuits to control switching power transistors used to power loads in a vehicle. The switching power transistors and gate drivers are configurable to support both a three-phase and a single phase current drive driver circuit topology in which switching power transistors are connected in parallel to share driving currents and dynamic switching losses. In any configured topology, the multi-wire choke is connected in series between gate driver circuit components and switching power transistors to mitigate any EMI threat to the gate driver circuitry by presenting an impedance to reduce circuit susceptibility to any differential and common mode noise currents that can flow through the gate driver circuit that can overwhelm gate driver circuitry and negatively effect power transistor switching performance at any time.

Abstract: A coil component includes a core including a winding core portion, a first flange portion, and a second flange portion, and a plate member that is mounted on the first flange portion and the second flange portion. A distance in a height direction between the plate member and the first flange portion, or a distance in the height direction between the plate member and the second flange portion, or both vary in a length direction, or in a width direction, or both.

Abstract: A coil electronic component includes a body, a coil portion disposed in the body and including a support substrate and a coil pattern disposed on at least one surface of the support substrate and forming at least one turn, and first and second external electrodes disposed on external surfaces of the body and connected to both ends of the coil pattern, respectively. The first and second external electrodes include a first plating layer disposed on an end surface of the body and a conductive resin layer covering the first plating layer and extending to a main surface of the body, to be connected to the coil pattern. An aspect ratio of the coil pattern is less than 1 and a width W1 of the coil pattern satisfies 0.8W2?W1?W2 as compared with a width W2 of the first and second external electrodes.

Abstract: A combined transformer/inductor device includes a core having a central core leg and an outer core leg spaced apart from the central core leg, an inner bobbin disposed around the central core leg, an outer bobbin disposed around the inner bobbin and the central core leg and having an upper portion having a first oblong portion disposed around the outer core leg, a lower portion having a second oblong portion disposed around the outer core leg, and a central portion disposed around the inner bobbin and the central core leg, a first winding wound around the inner bobbin, and a second winding wound around the outer bobbin, the second winding having a first portion wound around the first oblong portion, a second portion wound around the central portion, and a third portion wound around the second oblong portion.

Abstract: A coil component includes a body having one surface and another surface opposing each other, opposing end surfaces each connecting the one surface and the other surface to each other, and opposing side surfaces each connecting the end surfaces to each other. An internal insulating layer is embedded in the body, and a coil portion is disposed on at least one surface of the internal insulating layer and includes the first and second lead-out portions. The body has a recess disposed in each end surface of the body to expose the first and second lead-out portions. First and second external electrodes each include a connection portion disposed in the recess to be connected to a respective one of the first and second lead-out portions, and each include a pad portion disposed on the one surface of the body. A filling portion fills the recess and covers the connection portion.

Abstract: A shielding layer that is made of conductive and magnetic material is used to encapsulate the bare metal wire of a coil of an inductor to shield the coil from the external magnetic field and make the resistance and the power loss of the inductor lower.

Abstract: A winding core includes a winding core portion extending in a length direction; and first and second flange portions respectively provided at first and second end portions of the winding core portion in the length direction, and each having a bottom surface, a top surface on a side opposite to the bottom surface, an inner end surface facing the winding core portion side, and an outer end surface on a side opposite to the inner end surface, with a convex step portion on the top surface side of the outer end surface. The winding core portion has an upper surface facing substantially the same direction as a direction in which the top surface faces. A first straight line passing through the top surface and a second straight line passing through the upper surface intersect outside the outer end surface at an angle of from 0.3 degrees to 5 degrees.

Abstract: A coil component includes a body, a support substrate disposed within the body, a lead portion disposed on a first surface of the support substrate, a first insulating layer disposed on the first surface of the support substrate to cover the lead portion, a coil unit including a plurality of turns disposed on the first insulating layer, a second insulating layer covering the coil unit, and first and second external electrodes spaced apart from each other on the body, and connected to the coil unit and the lead portion, respectively.

Abstract: An inductor includes a body including a magnetic portion and a coil embedded in the magnetic portion and outer electrodes. The coil includes a wound portion formed by winding a conductive wire having a pair of wide surfaces in upper and lower layers and first and second lead-out portions extending from end portions of the wound portion at outermost peripheries of the upper and lower layers. One wide surface of a distal end portion of the first lead-out portion is exposed at a mounting surface of the body, a first surface adjacent to the mounting surface, and a corner portion therebetween. One wide surface of a distal end portion of the second lead-out portion is exposed at the mounting surface, a second surface adjacent to the mounting surface, and a corner portion therebetween. The outer electrodes cover the exposed wide surfaces of the first and second lead-out portions.

Abstract: A coil component including 2N coils, N being an integer of two or more, wherein the 2N coils are configured to form N pairs, and wherein when coils other than a first coil and a second coil forming one of the N pairs are defined as the other coils, a magnetic coupling between the first coil and the second coil is stronger than a magnetic coupling between the first coil and each of the other coils.

Abstract: A first substrate have recesses respectively provided at corner portions of a bottom surface. Outer electrodes each have electrode body portion provided around an associated one of the recesses on the bottom surface. The electrode body portion has a protruding portion extending along a short-side ridge portion between the bottom surface and a side surface.

Abstract: A coil device includes a first conductor, a second conductor, and a core. The second conductor is disposed inside the first conductor and at least partly extending along the first conductor. The core internally arranges the first conductor and the second conductor. An insulating layer is formed at least between the first conductor and the second conductor.

Abstract: An inductor includes a first magnetic body having a toroidal shape and having a ferrite; and a second magnetic body configured to be different from the first magnetic body and including a metal ribbon, wherein the second magnetic body includes an outer magnetic body disposed on an outer circumferential surface of the first magnetic body and an inner magnetic body disposed on an inner circumferential surface of the first magnetic body, and each of the outer magnetic body and inner magnetic body is wound in a plurality of layers in a circumferential direction of the first magnetic body.

Abstract: A coil component includes a body including magnetic metal powder and an insulating resin, an insulating substrate embedded in the body, a coil portion disposed on at least one side of the insulating substrate the body, and having a lead-out pattern exposed from one of end surfaces of the body opposing each other, an external insulating layer exposing the lead-out pattern while surrounding the body, and including a magnetic ceramic, and an external electrode disposed on the body, and connected to the lead-out pattern.

Abstract: A coil component includes a body; first and second coil portions spaced apart from each other in the body; first and second external electrodes disposed on the body to be spaced apart from each other and connected to both ends of the first coil portion; and first and second ground electrodes spaced apart from each other on the body and connected to both ends of the second coil portion.

Abstract: A wire coil component includes a shaped article, a wire wound around the shaped article, and terminal electrodes to which the ends of the wire are connected. The shaped article is formed from a magnetic resin containing a binder resin and a magnetic metal powder and has a thermal expansion coefficient of about 12 ppm/K or more and about 16 ppm/K or less (i.e., from about 12 ppm/K to about 16 ppm/K) from ?55° C. to 150° C.

Abstract: A coil component includes an insulating substrate; a coil portion disposed on at least one surface of the insulating substrate; and a body embedding the insulating substrate and the coil portion and having an active portion in which the coil portion is disposed, and a cover portion disposed on the active portion. A ratio of a thickness (T2) of the cover portion to a thickness (T1) of the insulating substrate satisfies 3<T2/T1<6, and the thickness (T2) of the cover portion satisfies 90 ?m<T2<120 ?m.

Abstract: The primary coil assembly, which includes a primary coil interposed between a pair of secondary coils and configured to perform electromagnetic mutual induction, and includes: a bonding coil having both ends connected to primary-side terminal pins of the transformer; a first PCB member provided on an upper surface of the bonding coil and configured to constitute an upper-side auxiliary winding of the primary coil; and a second PCB member provided on a lower surface of the bonding coil and configured to constitute a lower-side auxiliary winding of the primary coil.

Abstract: Provided are an inversely coupled inductor and a power module. The inversely coupled inductor includes a magnetic core, a first winding and a second winding, where a first passage is formed in the magnetic core; a part of the first winding and a part of the second winding pass through the first passage, and the first winding crosses with the second winding outside the first passage. The power supply module includes the above inversely coupled inductor, which is in turn stacked on, and electrically connected to, the packaged chip module. By arranging the two windings to cross with each other on the outside of the first passage of the magnetic core, the same type terminal (such as input pins or output pins) of the inversely coupled inductor can be located on the same side.

Abstract: A magnetic material and an inductor capable of attaining both higher magnetic permeability and improved DC superposition characteristics. A composite magnetic material contains metal magnetic particles, in which the metal magnetic particles include first particles having a median diameter D50 of 1.3 ?m or more and 5.0 ?m or less (i.e., from 1.3 ?m to 5.0 ?m), and second particles having a median diameter D50 larger than the first particles. The first and second particles each include a core portion made of a metal magnetic material, and an insulating film provided on a surface of the core portion. The insulating film of the second particles has an average thickness of 40 nm or more and 100 nm or less (i.e., from 40 nm to 100 nm). The insulating film of the first particles has an average thickness smaller than that of the insulating film of the second particles.

Abstract: A method includes performing a printing process that deposits a magnetic paste onto a first side and into an opening of a laminate; curing the magnetic paste to form a first transformer core piece having a first portion along the first side and a second portion filling the opening of the laminate; joining a second transformer core piece to a side of the second portion of the first transformer core piece to form a transformer. A transformer includes a laminate; a first core piece; and a second core piece, the first core piece comprising: a cured magnetic paste, a first portion along a side of the laminate, and a second portion filling an opening of the laminate, the second core piece extending along a side of the second portion of the first transformer core piece, and the laminate having windings that encircle the opening.

Abstract: A coil device includes a winding core, a wire, and a terminal fitting. The winding core is made of a magnetic material and includes a flange. The wire is wound around the winding core. The terminal fitting is attached to a part of an outer surface of the flange. The terminal fitting includes a contact part and a protrusion plate part. The contact part is contacted with the outer surface of the flange. The protrusion plate part is formed integrally with the contact part and protrudes away from the flange. The protrusion plate part includes a wire connection surface and a main mounting surface. A lead end of the wire is connected to the wire connection surface. The main mounting surface is located opposite to the wire connection surface and is connectable to an external circuit.

Abstract: A winding core portion includes corner portions. The cross section of the winding core portion taken in a direction orthogonally intersecting the longitudinal axis thereof is a polygon having four corners or more. The interior angle of each corner between adjacent sides of the polygon is 90 degrees or more and less than 120 degrees (i.e., from 90 degrees to 120 degrees) on the cross section. At least one of the corner portions has a first round surface and a second round surface that are formed so as to protrude outward and are arranged adjacently to each other in a circumferential direction of the winding core portion.

Abstract: A transformer and a power supply device. In the transformer, the first secondary coil including: first and second plate coils; and a first holding portion formed therebetween, the second secondary coil including: third and fourth plate coils; and a second holding portion formed therebetween, the first secondary coil is arranged between the third and fourth coils, the ends of the first plate coil and third plate coil are connected by solder, and the ends of the second plate coil and fourth plate coil are connected by solder, when the secondary-side rectifier circuit is a center-tapped rectifier circuit, the first holding portion, the second holding portion, and the bus bar are connected by solder through the connection hole, when the secondary-side rectifier circuit is a rectifier circuit other than the center-tapped rectifier circuit, the first holding portion and the second holding portion are connected by solder through the connection hole.

Abstract: A winding structure includes a coil having a wire wrap and two wire tails, and a magnetic core having a center column, a flange, four wire-hanging parts and two bosses; the center column is connected at a top surface of the flange, the first boss is disposed in the middle of a first side of the flange, and the second boss is symmetrical to the first boss; transition surfaces of wire-hanging parts to a bottom surface of the flange are chamfered surfaces; first to fourth sections of the first wire tail are sequentially attached to the first wire-hanging part and the first chamfered surface, the bottom surface of the flange, the third chamfered surface, the third wire-hanging part, and the top surface of the flange; first to fourth sections of the second wire tail are symmetrical to first to fourth sections of the first wire tail, respectively.

Abstract: A wire-wound core includes a wound core portion and a first flange and a second flange provided on a first end portion and a second end portion, respectively. The first flange has a bottom surface facing a mounting substrate during mounting, a top surface facing away from the bottom surface, an inner end surface coupling the bottom surface with the top surface and facing the wound core portion, an outer end surface facing away from the inner end surface, and a first side surface and a second side surface that face away from each other and each couple the bottom surface with the top surface and the inner end surface with the outer end surface. In a region of the outer end surface close to the bottom surface, a first inclined surface inclined toward the inner end surface as the first inclined surface approaches the bottom surface is provided.

Abstract: An electronic device and a method of forming such an electronic device are disclosed. The electronic device can include an integrated device package and a component. The integrated device package includes a substrate and a package body over the substrate, and a hole formed through the package body to expose a conductive pad of the substrate. The component is mounted over the package body, and includes a component body and a lead extending from the component body through the hole. The lead includes an insulated portion and a distal exposed portion, and the insulated portion includes a conductor and an insulating layer disposed about the conductor, wherein the distal exposed portion is uncovered by the insulating layer such that the conductor is exposed at the distal portion. The electronic device can also include a conductive material that electrically connects the distal exposed portion to the conductive pad of the substrate.

Abstract: A wire-wound inductor component includes a core having a columnar shaft portion, first and second support portions provided on first and second end portions of the shaft portion, first and second terminal electrodes provided on the respective support portions, a wire wound around the shaft portion, and a cover member covering an upper surface of the shaft portion. In a height direction of the core, a distance between an upper surface and a top surface of the support portions is a top surface step, and a distance between a lower surface of the shaft portion and a bottom surface of the support portions is a bottom surface step. The top surface step is smaller than the bottom surface step and larger than a wire diameter, and a distance between the upper surface and an uppermost surface of the wire is larger than half of the top surface step.

Abstract: A coiled electronic component includes: an electronic component body which includes a coil portion having a spiral structure and formed of an electrically conductive material, and electrically conductive connection portions arranged on both ends of the coil portion; and a pair of electrodes for respectively connecting the electrically conductive connection portions to assembly portions arranged on an assembly object. The electrode includes a pair of pinching pieces for pinching the electrically conductive connection portion, and the pair of pinching pieces is opened in a manner that the electrically conductive connection portion is received and fitted therebetween.

Abstract: First and second wires form a wire assembly by being wound around a winding core portion together. The wire assembly includes a twisted wire portion, an inner layer portion, an outer layer portion, a plurality of outward transition portions, and an inward transition portion. The outer layer portion includes a first outer layer portion which is connected to one of the outward transition portions extending from an intermediate position of the inner layer portion and connected to the inward transition portion. The inward transition portion extends to an intermediate position of the inner layer portion.

Abstract: An inductive device and a method of manufacturing the same are provided. The inductive device includes a magnetic base, a coil structure, and a package structure. The magnetic base includes a bottom plate, a core column, and a lateral wall defining a positioning trench. The coil structure includes a coil body, a first extending section, and a second extending section. The coil body disposed in the positioning trench surrounds the core column. The first extending section includes a first bent portion and a first terminal portion connected at a first connecting point. The second extending section includes a second bent portion and a second terminal portion connected at a second connecting point. A shortest distance between a first imaginary connection line defined between the first and second connecting points and a central axis of the core column is less than a minimum outer radius of the coil body.

Abstract: A surface mount inductor includes a coil buried in a composite material including a magnetic powder; outer terminals connected to the coil; and a molded body having a metal surface that intersects a winding axis of the coil and including the composite material. A surface mount inductor manufacturing method includes arranging, inside a mold, a metal plate having a shape covering part of a surface of a molded body; arranging a coil and a composite material including a magnetic powder or a preliminary molded body composed of the composite material inside the mold in which the metal plate has been arranged; and forming a molded body in which the coil is buried and that has the metal plate arranged on part of a surface of the molded body by molding the metal plate, the composite material, and the coil inside the mold to be integrated with each other.

Abstract: An adjustable inductor including a core defining a plurality of gaps, a material positioned in the gaps, at least one winding wound on the core, a force-applying structure, and a film substantially covering the adjustable inductor. The force-applying structure is operable to apply a force to the core to adjust the gaps and thereby an inductance of the adjustable inductor. The film is configured to prevent movement of force-applying structure when below a predetermined temperature threshold, and allow movement of the force-applying structure when above the predetermined threshold.

Abstract: A transformer includes: an upper primary substrate (110) which is formed by stacking a plurality of dielectric substrates, each substrate being provided with spiral conductive patterns; a lower secondary substrate (120) which is formed by stacking a plurality of dielectric substrates, each substrate being provided with spiral conductive patterns, in which the lower secondary substrate is positioned below the upper primary substrate (110) in such a way that the lower secondary substrate comes into contact with the upper primary substrate (110) or is spaced apart from the upper primary substrate (110); and a secondary coil element (200) of a planar shape to produce an induced current by a current applied to the upper primary substrate (110) and the lower primary substrate (120).

Abstract: A method to form an electrical component, comprising: overlaying a conductive and adhesive layer on a body and covering a first portion of a terminal part of a conductive element, wherein a second portion of the terminal part of the conductive element is not covered by the conductive and adhesive layer; and overlaying at least one metal layer on the conductive and adhesive layer and covering the second portion of the terminal part of the conductive element, wherein the at least one metal layer is electrically connected to the second portion of the terminal part of the conductive element for electrically connecting with an external circuit.

Abstract: A coil electronic component includes a support substrate including a metal plate having a plurality of through-holes formed therein, a coil pattern disposed on at least a surface of the support substrate and having a core region in the center of the coil pattern, an encapsulant disposed on at least a portion of the support substrate, the coil pattern, and at least a portion of the metal plate, and an external electrode disposed outside of the encapsulant and connected to the coil pattern.

Abstract: A coil component includes: a laminate including a magnetic portion and an insulator, the insulator having a higher insulation quality than the magnetic portion; a first external electrode; a second external electrode; and a coil conductor provided in the laminate, wherein the coil conductor includes a plurality of conductor patterns each extending along a planar direction perpendicular to the coil axis, the plurality of conductor patterns being separated from each other in the direction of the coil axis, the plurality of conductor patterns include a first conductor pattern and a second conductor pattern, the first conductor pattern contacting with the first external electrode, the second conductor pattern contacting with the second external electrode, and in the planar direction, the insulator is provided between the first conductor pattern and the second external electrode and between the second conductor pattern and the first external electrode.

Abstract: A coil component includes a multilayer body in which a plurality of resin insulation layers is laminated, a spiral-shaped coil conductor layer disposed on main surface of one of the resin insulation layers, and a close contact layer disposed at interfaces between two of the resin insulation layers and not connected to the coil conductor layer. The close contact layer contains a metal having desired adhesion to the resin insulation layers.

Abstract: A laminated electronic component includes a body including a magnetic layer containing magnetic particles; a coil provided within the body; and outer electrodes provided on a bottom surface of the body and each electrically connected to any one of end portions of the coil. In a cross-section perpendicular to the bottom surface of the body, a side surface of each outer electrode has a recess-shaped wedge portion, and a part of the body enters the wedge portion. At the bottom surface of the body, at least a part of a surface of each outer electrode is located outward of the bottom surface of the body.

Abstract: A ferrite core includes a ferrite sintered body in which integrally formed are a winding core portion, extending in a lengthwise direction, and flange portions provided at both ends in the lengthwise direction of the winding core portion and projecting from the winding core portion in at least a height direction orthogonal to the lengthwise direction. Pores are present inside the winding core portion and the flange portions, and an abundance ratio of the pores in the winding core portion is equal to or more than about 0.05% and equal to or less than about 1.00% (i.e., from about 0.05% to about 1.00%).

Abstract: A method for producing an inductive charging device may include inserting a ferrite and a coil, wound from a braid, into a mould; and encasing the ferrite and the braid at least partially with a plastic in a low pressure casting method, a pressing transfer moulding method, or an injection moulding method.

Abstract: In an embodiment a core component includes a base plate, a plurality of members arranged on corners of the base plate and delimiting an inner region of the core component and a center piece located in the inner region and having an oval basic shape.

Abstract: A composite magnetic material includes a powder and a resin. The powder has a main component containing Fe or Fe and Co. An average minor axis length in primary particles of the powder is 100 nm or less. A point satisfying (X, Y)=(?/Av (%), (Av-?)) on an XY coordinate plane is present within a region (including a boundary) surrounded by three points ?(24.5, 6.7), ?(72.0, 1.2), and ?(24.5, 1.2), in which an average of aspect ratios in the primary particles of the powder is set to Av, and a standard deviation of the aspect ratios in the primary particles of the powder is set to ?.