According to an aspect of the present disclosure, a coil component includes: a body having a first surface and a second surface opposing each other in a first direction, and a plurality of side surfaces connecting the first surface and the second surface to each other; a substrate disposed in the body; at least one insulating pattern disposed on at least one corner where two of the plurality of side surfaces of the body are in contact with each other and exposed to the two side surfaces of the body; a coil unit including a coil pattern disposed on at least one surface of the substrate with a plurality of turns, and lead-out portions respectively exposed to opposing ones of the plurality of side surfaces of the body; and external electrodes disposed on the body and connected to the lead-out portions, respectively.

A coil component includes a magnetic body containing metal magnetic particles; a coil embedded in the magnetic body; and an outer electrode at at least the bottom surface (for example, a first main surface) of the magnetic body and electrically connected to the coil. The outer electrode (for example, a first outer electrode) includes, in order from the side of the magnetic body, an underlayer containing Ag, and a plating layer. At an interface between the magnetic body and the underlayer, an oxide film containing a metal element contained in metal magnetic particles is between the metal magnetic particles and the underlayer. In the inside of the magnetic body, an oxide film having a thickness smaller than the thickness of the oxide film between the metal magnetic particles and the underlayer is at surfaces of metal magnetic particles adjacent to the metal magnetic particles positioned at the interface.

An electronic component, such as, for example, an inductor, includes a core defining an axis and a conductor that is at least partially wound about the core. The electronic component further includes a mounting surface defining a plane that extends substantially parallel to the axis of the core. The mounting surface is configured to engage a surface of a board. The conductor may include a first terminal and a second terminal extending along the plane such that the first and second terminals are able to be mounted to the surface of the board.

A multilayer coil component includes an element body including an end surface, a coil disposed in the element body, and an external electrode disposed on an end portion of the element body and connected to the coil. The external electrode includes a conductive resin layer. The conductive resin layer includes resin and a plurality of metal particles and is in contact with the end surface. The conductive resin layer includes a metal particle group. The metal particle group consists a plurality of first metal particles included in the plurality of metal particles, and the plurality of first metal particles is adjacent to the end surface and separated from the end surface.

An inductor includes a coil that is constituted by a conductor having a coating layer and includes a winding portion where the conductor is wound and an extended portion extended from the winding portion, a base body that envelops the coil and is constituted by a magnetic body containing magnetic powder and resin, and an outer electrode that is arranged on a surface of the base body and connected to the extended portion. The extended portion of the coil includes a conductor portion that does not have the coating layer in an end portion of the extended portion, and the conductor portion includes a first region connected to the outer electrode and a second region in contact with the magnetic body.

An inductor includes a coil that is constituted by a conductor having a coating layer and includes a winding portion where the conductor is wound and an extended portion extended from the winding portion, a base body that envelops the coil and is constituted by a magnetic body containing magnetic powder and resin, and an outer electrode that is arranged on a surface of the base body and connected to the extended portion. The extended portion of the coil includes a conductor portion that does not have the coating layer in an end portion of the extended portion, and the conductor portion includes a first region connected to the outer electrode and a second region in contact with the magnetic body.

A coil component includes a body having one surface and the other surface and a plurality of wall surfaces, first and second insulating substrates spaced apart from each other, first and second recesses disposed in both end surfaces of the body and extending to one surface of the body, first and second coil portions disposed on the first and second insulating substrates, one ends and the other ends of the first and second coil portions being exposed to the first and second recesses, first and second external electrodes disposed along an inner surface of the first recess and one surface of the body and connected to one ends of the first and second coil portions, and third and fourth external electrodes disposed along an inner surface of the second recess and one surface of the body and connected to the other ends of the first and second coil portions.

A common mode choke coil is configured in which end portions of first and second wires are connected to first and second terminal electrodes, end portions of third and fourth wires are connected to third and fourth terminal electrodes, and at least a part of each of the first, third, fourth and second wires is wound around a winding core portion to form first, second, third and fourth layers. Also, a common mode choke coil is configured in which end portions of first and second wires are connected to first and second terminal electrodes, end portions of a third wire are connected to third and fourth terminal electrodes, and at least a part of each of the first, third, and second wires is wound around a winding core portion to form first, second, and third layers.

A common mode choke coil is configured in which end portions of first and second wires are connected to first and second terminal electrodes, end portions of third and fourth wires are connected to third and fourth terminal electrodes, and at least a part of each of the first, third, fourth and second wires is wound around a winding core portion to form first, second, third and fourth layers. Also, a common mode choke coil is configured in which end portions of first and second wires are connected to first and second terminal electrodes, end portions of a third wire are connected to third and fourth terminal electrodes, and at least a part of each of the first, third, and second wires is wound around a winding core portion to form first, second, and third layers.

A coil component includes a body; a support substrate embedded in the body; a coil portion disposed on the support substrate, and having an end portion exposed to a surface of the body; and an external electrode disposed on the surface of the body, and in contact with and connected to the end portion of the coil portion. An interface between the end portion of the coil portion and the external electrode, and an interface between the surface of the body and the external electrode are located on levels different from each other.