Abstract: At the position where the lead art of the wire is projecting out from the outer face of the core part and spaced apart from the side face, the bonding part between the lead part and the terminal electrode is formed. The terminal electrode comprises the terminal body installed along the side face of the core body, and the lead supporting part bended from the terminal body towards the bonding part at the near position where the lead part projects out from the side face of the core part. The crossing angle of the lead supporting part with respect to the side face of the core body is less than 90 degrees.

Abstract: A common mode filter includes a core, and first and second wires wound around the core. Each of the first and second wires includes at least i?1th turn, ith turn, and i+1th turn. The ith turn of the first wire intersects with the ith turn of the second wire without intersecting each of the i?1th and i+1th turns of the second wire.

Abstract: A common mode filter includes a core, and first and second wires wound around the core. Each of the first and second wires includes at least i?1th turn, ith turn, and i+1th turn. The ith turn of the first wire intersects with the ith turn of the second wire without intersecting each of the i?1th and i+1th turns of the second wire.

Abstract: At the position where the lead art of the wire is projecting out from the outer face of the core part and spaced apart from the side face, the bonding part between the lead part and the terminal electrode is formed. The terminal electrode comprises the terminal body installed along the side face of the core body, and the lead supporting part bended from the terminal body towards the bonding part at the near position where the lead part projects out from the side face of the core part. The crossing angle of the lead supporting part with respect to the side face of the core body is less than 90 degrees.

Abstract: A device is provided that includes a core having a first end and a second end, and first and second wires wound around the core so as to cross each other on the core to form a cross point. The a winding structure of an ith turn of the first and second wires counting from the cross point toward the first end, and a winding structure of an ith turn of the first and second wires counting from the cross point toward the second end, are substantially symmetrical about the cross point.

Abstract: A common mode filter includes first and second wires wound around a winding core portion by the same number of turns. Each of the first and second wires is wound by a number m1 of turns in a first winding area and wound by a number m2 of turns in a second winding area. A distance D1 between an n1th turn (1?n1?m1?1) of the second wire and an n1+1th turn of the first wire is shorter than a distance D2 between an n1th turn of the first wire and an n1+1th turn of the second wire in the winding area. A distance D3 between an n2th (m1+1?n2?m1+m2?1) turn of the first wire and an n2+1th turn of the second wire is shorter than a distance D4 between an n2th turn of the second wire and an n2+1th turn of the first wire in the winding area.

Abstract: A common mode filter includes a core, and first and second wires wound around the core. Each of the first and second wires includes at least i?1th turn, ith turn, and i+1th turn. The ith turn of the first wire intersects with the ith turn of the second wire without intersecting each of the i?1th and i+1th turns of the second wire.

Abstract: Disclosed herein is a common mode filter that comprises a drum core including a winding core portion and a pair of flange portions provided at both ends of the winding core portion, and first and second wires wound around the winding core portion so as to form a pair-wire for each turn. The first and second wires includes one or a plurality of sparsely-wound portions in which the first and second wires are wound with adjacent pair-wires spaced from each other, and one or a plurality of closely-wound portions in which the first and second wires are wound with adjacent pair-wires in close contact with each other.

Abstract: In a coil component, a shortest distance from a longitudinal wall of a flange portion of a drum core to a wire fixing portion is smaller than a shortest distance of the longitudinal wall to an electrode wire connecting portion by a convex portion formed at the longitudinal wall of the flange portion. That is, since a gap between the flange portion of the drum core and the wire fixing portion is small (or there is no gap), the wire fixing portion can be sufficiently bent. Accordingly, the wire can be securely fixed by a wire fixing portion of a metal terminal.

Abstract: In a coil component, a shortest distance from a longitudinal wall of a flange portion of a drum core to a wire fixing portion is smaller than a shortest distance of the longitudinal wall to an electrode wire connecting portion by a convex portion formed at the longitudinal wall of the flange portion. That is, since a gap between the flange portion of the drum core and the wire fixing portion is small (or there is no gap), the wire fixing portion can be sufficiently bent. Accordingly, the wire can be securely fixed by a wire fixing portion of a metal terminal.

Abstract: A common mode filter includes first and second wires wound around a winding core portion by the same number of turns. Each of the first and second wires is wound by a number m1 of turns in a first winding area and wound by a number m2 of turns in a second winding area. A distance D1 between an n1th turn (1?n1?m1?1) of the second wire and an n1+1th turn of the first wire is shorter than a distance D2 between an n1th turn of the first wire and an n1+1th turn of the second wire in the winding area. A distance D3 between an n2th (m1+1?n2?m1+m2?1) turn of the first wire and an n2+1th turn of the second wire is shorter than a distance D4 between an n2th turn of the second wire and an n2+1th turn of the first wire in the winding area.

Abstract: Disclosed herein is a common mode filter that comprises a drum core including a winding core portion and a pair of flange portions provided at both ends of the winding core portion, and first and second wires wound around the winding core portion so as to form a pair-wire for each turn. The first and second wires includes one or a plurality of sparsely-wound portions in which the first and second wires are wound with adjacent pair-wires spaced from each other, and one or a plurality of closely-wound portions in which the first and second wires are wound with adjacent pair-wires in close contact with each other.

Abstract: A coil unit including an annular toroidal core, two coils wound over the toroidal core providing a bifilar winding, a winding-start positioning part, and a winding-end positioning part. The winding-start positioning part is adapted for making contact with a winding-start portion of the coils. The winding-end positioning part is adapted for making contact with a winding-end portion of the coils for regulating the positions of the winding-start portion and the winding-end portion relative to the toroidal core.

Abstract: A coil unit including an annular toroidal core, two coils wound over the toroidal core providing a bifilar winding, a winding-start positioning part, and a winding-end positioning part. The winding-start positioning part is adapted for making contact with a winding-start portion of the coils. The winding-end positioning part is adapted for making contact with a winding-end portion of the coils for regulating the positions of the winding-start portion and the winding-end portion relative to the toroidal core.