Tdk Corporation

Other

Tadashige Konno

Makoto Saitoh

Makoto Yoshida

Tomokazu Ito

Takashi Tanaka

Nobuyuki Okuzawa

Koji Nishida

Yoshiaki Akachi

Tadaharu Akino

Hisanori Sasaki

Each of first and second coil conductors has a spiral form and is disposed between first and second magnetic substrates. The first and second coil conductors include first parts arranged so as to extend along each other with a predetermined gap therebetween on a first insulating layer, and second parts intersecting each other three-dimensionally. The first and second coil conductors intersect each other in their middle part as seen from a direction orthogonal to the principal face of the first magnetic substrate (second magnetic substrate).

Coil component

A feed-through EMI filter includes a hollow outer conductor, an inner conductor passing through the outer conductor, and a composite magnetic material of magnetic metal flakes disposed between the outer conductor and the inner conductor. Both ends of the outer conductor are closed by insulating lids supporting the inner conductor in a feed-through arrangement. The composite magnetic material has a higher complex relative permeability at GHz frequencies than ferrites and produces a large insertion loss.

Feed-through EMI filter with a metal flake composite magnetic material

This invention discloses a composite type circuit part comprising a conductive plate formed at both wings with inductor place portions, respectively, a pair of first intermediate coupling elements in which an inductor place portion is formed at one end opposed to each inductor place portion of the wings, and a second intermediate coupling element with one end arranged opposedly of a central portion of the conductive plate and arranged at a position between the pair of first intermediate coupling elements. A lead wire coupling portions for holding a lead wire, is provided in the first intermediate coupling element and the second intermediate coupling element. Lead wires are coupled to the lead wire coupling portions, respectively. Inductors are placed on the opposed inductor plate portions, respectively. A chip condenser is placed over and between the central portion of the conductive plate and the second intermediate coupling element, thereby providing a positive coupling state of the lead wires. The central portion of the conductive plate is projected to enhance the mechanical strength. Further, upright elements are provided on the intermediate coupling element to enhance the mechanical strength. Moreover, holes for preventing a flow of solder are provided partially in the conductive plate.

Composite type circuit parts

The present invention relates to a composite-type circuit component containing inductors and a capacitor, in which the inductors are disposed at both wings of a conductive plate, and the capacitor is disposed at the intermediate portion of the conductive plate. The above-mentioned inductors and capacitor are connected with lead wires having circular cross sections.

Composite-type circuit component and its manufacturing method

Growing community of inventors

Tokyo, Japan

Tadashige Konno