An inductor array includes a magnetic base body having first and second surfaces opposed to each other and a third surface connecting between the first and second surfaces, and also includes first and second end internal conductors having the same shape. The first end internal conductor includes first-end first conductor portions and fewer first-end second conductor portions, alternating with and being connected to each other. The second end internal conductor includes second-end first conductor portions and fewer second-end second conductor portions, alternating with and being connected to each other. The first-end first conductor portions are positioned away from the first surface by a first end distance in a reference axis direction and face the first surface. The second-end second conductor portions are positioned away from the second surface by a second end distance less than the first end distance in the reference axis direction and face the second surface.

A coil component includes: a body; a coil portion including a coil pattern disposed in the body and first and second lead portions exposed to a first surface of the body to be spaced apart from each other; and first and second external electrodes disposed on the first surface of the body and spaced apart from each other and connected to the first and second lead portions, respectively, wherein in a cross-section perpendicular to the first surface of the body, a curved portion having a radius of curvature of 1 μm or more is formed in a region in which each of the first and second lead portions and an outermost turn of the coil pattern are connected to each other.

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.

A highly reliable coil device is provided. An inductor 1 includes: a core 8; a coil 2 embedded inside the core 8; and terminals 4a and 4b provided with wire connecting portions 42a and 42b, to which lead-out portions 3a and 3b of the coil 2 are connected, the wire connecting portions 42a and 42b being disposed inside the core 8, in which the terminals 4a and 4b are disposed inside the core 8, and the terminals 4a and 4b include base portions 41a and 41b on which a second end portion 2b of the coil 2 in a winding axis direction is provided.

An inductor component comprising a base body comprising a filler; a coil in the base body and helically wound along an axis; and external electrodes in the base body and each electrically connected to the coil, with outer faces of the external electrodes exposed from the base body. The base body comprises external electrode contact parts that each contact one of the external electrodes on an inner side of the base body and are each disposed along one of the external electrodes; and a central part that comprises a center point of the base body and is located away from the coil, the external electrodes, and the external electrode contact parts. A content rate of the filler in the external electrode contact parts is from a 0.9-fold level to a 1.1-fold level of a content rate of the filler in the central part.

In an exemplary embodiment, a coil component includes: a base part 10 containing a magnetic material; a flat coil 30 embedded in the base part 10, formed by a wound coil conductor 32 where an end part 34 and an end part 36 are located on the inner side and on the outer side of the windings, respectively; a lead conductor 50 and a lead conductor 52 connected to the end part 34 and the end part 36, respectively; an external electrode 60 and an external electrode 62 provided on the surface of the base part 10 and connected to the lead conductor 50 and the lead conductor 52, respectively. The lead conductor 50 is connected to the external electrode 60 in an area 42 on the inner side of the flat coil 30 as viewed from above in the axial direction of the flat coil 30.

In an exemplary embodiment, a coil component includes: a base part 10 containing a magnetic material; a flat coil 30 embedded in the base part 10, formed by a wound coil conductor 32 where an end part 34 and an end part 36 are located on the inner side and on the outer side of the windings, respectively; a lead conductor 50 and a lead conductor 52 connected to the end part 34 and the end part 36, respectively; an external electrode 60 and an external electrode 62 provided on the surface of the base part 10 and connected to the lead conductor 50 and the lead conductor 52, respectively. The lead conductor 50 is connected to the external electrode 60 in an area 42 on the inner side of the flat coil 30 as viewed from above in the axial direction of the flat coil 30.

A connection of a connection wire and a connection element are disclosed. In an embodiment a connection includes a connection wire having an insulation and a stud-shaped metallic connection element, wherein the connection wire is wound in a plurality of turns around the connection element, and wherein the turns include a first wire section, in which the connection wire is insulation-stripped, and a second wire section, in which the insulation is present.

Disclosed herein is a coil component that includes a first coil, and a second coil disposed so as to surround the first coil. The first coil includes a first section extending in a first direction, a second section extending in a second direction orthogonal to the first direction, and a third section positioned between the first and second sections. Gaps between the first, second, and third sections of the first coil and the second coil as viewed in a coil axis direction have a first width, a second width, and a third width, respectively. The second width is larger than the first width and smaller than the third width.

Disclosed herein is a coil component that includes a first coil, and a second coil disposed so as to surround the first coil. The first coil includes a first section extending in a first direction, a second section extending in a second direction orthogonal to the first direction, and a third section positioned between the first and second sections. Gaps between the first, second, and third sections of the first coil and the second coil as viewed in a coil axis direction have a first width, a second width, and a third width, respectively. The second width is larger than the first width and smaller than the third width.