Abstract: In a coil component, a plate-shaped core is fixed to first and second flanges of a drum-shaped core with an adhesive interposed therebetween in a state that a lower principal surface of the plate-shaped core faces top surfaces of the first and second flanges. The adhesive is made of a hardened epoxy-based resin containing dicyandiamide.

Abstract: A method of manufacturing a coil component includes a heating step of locally heating metal terminals while the metal terminals are supported by a pressing member having a contact surface capable of coming into contact with the metal terminals in a state where an adhesive is disposed between the metal terminals and a drum core.

Abstract: A coil component including a wire has a central conductor and an insulating coating layer, and a terminal electrode has a connection part that is electrically connected to the central conductor. The connection part includes a receiving part that receives an end portion of the wire, and a welding part that extends from the receiving part via a fold-back part so as to face the receiving part. The wire becomes sandwiched between the receiving part and the welding part. The central conductor is welded to the welding part in the portion from which the insulating coating layer is removed. The distal end portion of the wire protrudes from the space between the receiving part and the welding part, with the insulating coating layer remaining on the distal end portion.

Abstract: A flange portion includes a projecting surface that is positioned in a leading end of a projection projecting toward a mounting substrate and that faces the mounting substrate, and a principal surface that extends in a direction crossing the projecting surface and that faces a direction in which the pair of flange portions are aligned. A metal terminal includes a mounting portion opposed to the projecting surface and an end surface portion opposed to the principal surface. An angle ? between the mounting portion and the end surface portion satisfies the relationship 85 degrees??<90 degrees. The angle ? between the mounting portion and the end surface portion is smaller than an angle ?1 between the projecting surface and the principal surface.

Abstract: A coil component includes a drum core that includes a winding core portion and a pair of flange portions formed at the ends of the winding core portion, electrodes that are included in the pair of flange portions, and first and second wires that are wound around the winding core portion and that include extended portions electrically connected to the electrodes. The flange portions are continuous with the winding core portion and have slopes that guide the extended portions to the electrodes.

Abstract: A coil component includes a drum core including a winding core portion and a flange portion disposed on an end portion thereof the winding core portion in its axial direction, a planar core having a lower principal surface, and a wire wound around the winding core portion. The flange portion includes an inner end surface, an outer end surface, a bottom surface, and a top surface. The inner end surface positions the end portion of the winding core portion. The bottom surface links the inner end surface and the outer end surface and placed so as to face a mounting substrate side when being mounted. The lower principal surface of the planar core is fixed to the top surface with an adhesive interposed therebetween. The top surface includes a protrusion with a vertex positioned closer to the inner end surface than to the outer end surface.

Abstract: A coil component includes a conducting wire and a terminal electrode. The terminal electrode includes a first terminal piece and a second terminal piece that face and overlap each other with the conducting wire interposed therebetween. The first terminal piece and the second terminal piece are coupled to one another with a coupling portion and are integrated in a welded ball at a position different from a position of the coupling portion. An end portion of the conducting wire is in the welded ball.

Abstract: In the coil component, for dimensions measured along a predetermined direction of a winding core portion, a dimension of each of top surfaces of first and second flange portions is equal to or larger than a dimension of the winding core portion.

Abstract: A terminal electrode has a flat surface to which an end portion of a wire is connected, a low surface lower in a thickness direction of the terminal electrode than the flat surface, and a shift surface connects the flat surface and the low surface and increases a height in the thickness direction from the low surface to the flat surface. The wire has a first portion, a second portion and a third portion opposing the flat surface, the shift surface and the low surface, respectively. The first portion has a flattened cross-sectional shape, and the second portion has a semi-flattened cross-sectional shape.

Abstract: A connection section of a terminal electrode includes a reference surface, and an end portion of a wire and the connection section of the terminal electrode are connected to each other via a weld lump rising from the reference surface. A cover section to regulate an upper limit of the rise of the wire from the reference surface is provided in the terminal electrode. The cover section is so positioned as to cover at least part of the wire when viewed in a direction perpendicular to a direction in which the reference surface extends.

Abstract: A terminal electrode includes a base extending along the outer end face of a flange, a mounting part extending from the base along the bottom face of the flange via a first bending part that covers the edge portion where the outer end face and the bottom face meet, and a wire connection part extending from the base along a substantially horizontal face via a second bending part that covers the edge portion where the outer end face and the substantially horizontal face meet, the wire connection part being electrically connected to an end portion of a wire.

Abstract: A coil component has a core having a winding core portion and first and second flange portions, a plurality of wires wound around the winding core portion, and a plurality of electrode portions disposed on the first and second flange portions. The first wire and the third wire cross each other on the first flange portion. The first flange portion has a groove at a position of crossing of the first wire and the third wire. The first wire on the lower side passes through the groove so that the first wire and the third wire are separated from each other.

Abstract: A common-mode choke coil comprises a ferrite core including a winding core portion and first and second flange portions. The common-mode choke coil also comprises first and second wires, each of which is helically wound around the winding core portion. The common-mode choke coil further comprises first and second terminal electrodes to which a first end of the first wire and a second end of the first wire, that is opposite the first end, are electrically connected, respectively. In addition, the common-mode choke coil comprises third and fourth terminal electrodes to which a first end of the second wire and a second end of the second wire, that is opposite the first end, are electrically connected, respectively. A common-mode inductance value at 150° C. and 100 kHz is 160 ?H or more, and a return loss at 20° C. and 10 MHz is ?27.1 dB or less.

Abstract: A coil component includes a drum-shaped core including a winding core portion and first and second flange portions. A base of a terminal electrode disposed on the first flange portion and a base of an other terminal electrode disposed on the first flange portion are adjacent to each other in the direction in which first and second side surfaces oppose each other, and are along a flat surface of an outer end surface. A clearance between the base of the terminal electrode and the base of the other terminal electrode on a side near a lower surface is larger than that on a side near an upper surface.

Abstract: A coil component includes a wire including a linear central conductor and an insulating coating layer that covers a circumferential surface of the central conductor, and a terminal electrode that is electrically connected to the central conductor at an end portion of the wire. The terminal electrode includes a receiving portion to which the central conductor is welded. A weld nugget portion that is produced when the central conductor is welded and the receiving portion are welded to each other.

Abstract: A coil component comprises a wire and a terminal electrode. The wire includes a linear central conductor and an insulating coating layer that covers a circumferential surface of the central conductor. The terminal electrode is electrically connected to the central conductor at an end portion of the wire, and includes a metallic plate. The terminal electrode also includes an edge portion in contact with the wire. The edge portion is chamfered.

Abstract: A coil component including a core, first metal terminals, second metal terminals and a wire. The first metal terminals and second metal terminals have mounting portions provided above the mounting surface and aligned above the mounting surface. One of the mounting portions of the first metal terminals has a first end surface facing one of the mounting portions of the second metal terminals and a second end surface other than the first end surface, and the first end surface has a chopped trace where surface roughness is higher than surface roughness of the second end surface.

Abstract: A coil component includes a drum-shaped core including a winding core portion and first and second flange portions that are provided respectively at both end portions of the winding core portion, and a plate-shaped core bridging the first and second flange portions. The first flange portion has a top surface opposed to one principal surface of the plate-shaped core, and a resin containing magnetic powder having a particle size of not less than about 50 nm and not more than about 1000 nm is present between the principal surface of the plate-shaped core and the top surface of the first flange portion.

Abstract: A coil component includes two or more coils configuring a common mode choke coil and functions as an inductor against a normal mode AC current. A coil component includes a pot-type core formed in a box-like shape, a flat plate core, coils, and a partition core formed of a magnetic substance. The coils are accommodated inside the pot-type core and form a common mode choke coil by making the central axes thereof substantially match each other. Further, each of end portions of the coils function as outer electrodes. The partition core is provided between the coils.

Abstract: A method of manufacturing a coil component including a step of welding a wire to a metal terminal by laser welding capable of making positional displacement of the wire only minimally occur. As a metal terminal, a metal terminal having a connecting portion on which a positioning groove for receiving and positioning a portion of the wire is formed is prepared. The wire is temporarily fixed to the connecting portion in a state where the wire is positioned by being fitted in the positioning groove, and the wire and the metal terminal are welded to each other by irradiating a laser beam. The positioning groove is preferably formed into a V shape in cross section.