The disclosed current-distribution inductor may include (1) a magnetic core and (2) a conductor electrically coupled between a power source and an electrical component of a circuit board, wherein the conductor comprises (A) a bend that passes through the magnetic core and (B) a flying lead that extends from the bend to the electrical component of the circuit board and runs parallel with the circuit board. Various other apparatuses, systems, and methods are also disclosed.

A solenoid valve coil, including: a solenoid valve coil body; and a lead wire assembly. The lead wire assembly includes a connector and a conducting wire, the connector includes a wire hole, an end portion of the conducting wire extends into the wire hole and is electrically connected with the solenoid valve coil body, and the conducting wire and an inlet of the wire hole are sealed. By means of the solenoid valve coil, a problem of poor sealing performance of the coil in the prior art is effectively solved.

A solenoid valve coil, including: a solenoid valve coil body; and a lead wire assembly. The lead wire assembly includes a connector and a conducting wire, the connector includes a wire hole, an end portion of the conducting wire extends into the wire hole and is electrically connected with the solenoid valve coil body, and the conducting wire and an inlet of the wire hole are sealed. By means of the solenoid valve coil, a problem of poor sealing performance of the coil in the prior art is effectively solved.

A filter circuit includes a coil component, an inductor, and a capacitor. In the coil component, a first coil and a second coil are magnetically coupled. The inductor is electrically connected to a first end of the first coil and a second end of the second coil and is connected in parallel to the coil component. The capacitor is electrically connected between a ground electrode and an electrode electrically connected to a second end of the first coil and a second end of the coil.

In the coil component, external stress applied when the upper coil structure, the lower coil structure, and the magnetic sheet are stacked is dispersed by the undulation of both main surfaces of the magnetic sheet. By dispersing the stress in this manner, a situation in which defects such as cracks occur in the coil structure is effectively suppressed.

In the coil component, external stress applied when the upper coil structure, the lower coil structure, and the magnetic sheet are stacked is dispersed by the undulation of both main surfaces of the magnetic sheet. By dispersing the stress in this manner, a situation in which defects such as cracks occur in the coil structure is effectively suppressed.

A coil component includes: a body including one surface and one side surface and the other side surface respectively connected to the one surface and opposing each other; a coil portion disposed within the body; a marker disposed on the one surface of the body; and a coating layer disposed on the one surface of the body to cover the marker, wherein the coating layer includes a light-transmitting resin.

A stacked coil component includes: an element body, a coil disposed inside the element body; and a first outer electrode and a second outer electrode which are disposed in the element body. Each of the first outer electrode and the second outer electrode includes an electrode portion which includes a joining surface joined to the element body, and a plating surface opposite to the joining surface and is formed by plating, and of which at least a part is embedded in the element body.

A stacked coil component includes: an element body, a coil disposed inside the element body; and a first outer electrode and a second outer electrode which are disposed in the element body. Each of the first outer electrode and the second outer electrode includes an electrode portion which includes a joining surface joined to the element body, and a plating surface opposite to the joining surface and is formed by plating, and of which at least a part is embedded in the element body.

A multilayer coil component includes: an element body formed by stacking a magnetic body layer containing a plurality of metal magnetic particles of a soft magnetic material; a first coil disposed in the element body and configured to include a plurality of first coil conductors; a second coil disposed in the element body and configured to include a plurality of second coil conductors; a first external electrode to which one end portion of each of the first coil and the second coil is connected; and a second external electrode to which the other end portion of each of the first coil and the second coil is connected.