ELECTRONIC COMPONENT

• Main Author: SASAKI KATSUFUMI
• Format: Patent
• Language: English; Japanese
• Published: 30.11.2017
• Subjects: BASIC ELECTRIC ELEMENTS; BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; INDUCTANCES; MAGNETS; RESONATORS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

PROBLEM TO BE SOLVED: To reduce a difference in differential impedance between respective coils of a common mode filter comprising three coils.SOLUTION: An electronic component according to the present invention comprises: a laminate; a primary coil including n primary coil conductor layers and a serial primary coil conductor layer; a secondary coil including n secondary coil conductor layers; and a tertiary coil including n tertiary coil conductor layers. One coil conductor layer group is constituted by arranging one primary coil conductor layer, one secondary coil conductor layer and one tertiary coil conductor layer each from one side to the other side in a laminating direction, and n coil conductor layer groups are arranged from the one side to the other side in the laminating direction. The serial primary coil conductor is connected electrically in series to the primary coil conductor layer and tertiary coil conductor layer, and also provided, for a tertiary coil conductor layer provided most on the other side in the laminating direction, on the other side in the laminating direction.SELECTED DRAWING: Figure 2 【課題】３つのコイルを備えたコモンモードフィルタにおいて、各コイル間の差動インピーダンスの差異を低減することである。【解決手段】本発明に係る電子部品は、積層体と、ｎ個の１次コイル導体層及び直列１次コイル導体層を含む１次コイルと、ｎ個の２次コイル導体層を含む２次コイルと、ｎ個の３次コイル導体層を含む３次コイルと、を備えており、１次コイル導体層、２次コイル導体層及び３次コイル導体層が１つずつ積層方向の一方側から他方側へとこの順に並ぶことにより１つのコイル導体層群が構成されており、ｎ個のコイル導体層群が積層方向の一方側から他方側へと並んでおり、直列１次コイル導体層は、１次コイル導体層ないし３次コイル導体層に対して電気的に直列に接続されており、かつ、積層方向の最も他方側に設けられている３次コイル導体層に対して積層方向の他方側に設けられていること、を特徴とする。【選択図】図２