Abstract: An inductor includes a core including a multilayer part in which magnetic layers and insulating layers are alternately stacked; a coil including a wound part having a winding axis substantially perpendicular to a stacking direction of the multilayer part; and an element body. The multilayer part includes a first multilayer part in which first magnetic layers and insulating layers are alternately stacked and second and third multilayer parts in which second magnetic layers and insulating layers are alternately stacked, the electrical resistivity and/or relative magnetic permeability of the second magnetic layers being larger than those of the first magnetic layers. The first multilayer part has first and second surfaces that are perpendicular to the stacking direction and face each other and third and fourth surfaces that are parallel to the stacking and winding axis directions. The second and third multilayer parts are arranged on the first and second surfaces.

Abstract: An inductor includes a core including a multilayer part in which magnetic layers and insulating layers are alternately stacked; a coil including a wound part having a winding axis substantially perpendicular to a stacking direction of the multilayer part; and an element body. The multilayer part includes a first multilayer part in which first magnetic layers and insulating layers are alternately stacked and second and third multilayer parts in which second magnetic layers, which are thinner than the first magnetic layers, and insulating layers are alternately stacked. The first multilayer part has a first and second surfaces that are perpendicular to the stacking direction and face each other and third and fourth surfaces that are parallel to the stacking direction and a winding axis direction and face each other. For example, the second and third multilayer parts are arranged on the first surface and the second surface.

Abstract: An inductor includes a core including a multilayer part in which magnetic layers and insulating layers are alternately stacked; a coil including a wound part having a winding axis substantially perpendicular to a stacking direction of the multilayer part; and an element body. The multilayer part includes a first multilayer part in which first magnetic layers and insulating layers are alternately stacked and second and third multilayer parts in which second magnetic layers and insulating layers are alternately stacked, the electrical resistivity and/or relative magnetic permeability of the second magnetic layers being larger than those of the first magnetic layers. The first multilayer part has first and second surfaces that are perpendicular to the stacking direction and face each other and third and fourth surfaces that are parallel to the stacking and winding axis directions. The second and third multilayer parts are arranged on the first and second surfaces.

Abstract: An inductor includes a core, a coil having a conductor wound around the core, and an sealing body accommodating the core and the coil. The core includes a lamination portion in which a magnetic body layer and an insulator layer are alternately laminated and is arranged such that a lamination direction of the lamination portion is orthogonal to a winding axis of the coil. The magnetic body of the core has higher magnetic permeability than the sealing body. The core has a region in which an area of a cross section orthogonal to a winding axis direction is smaller than an area of a cross section of a near-side portion in at least one direction of the winding axis of the coil.