发明名称 INDUCTANCE ELEMENT AND METHOD FOR MANUFACTURING THE SAME
摘要 <p>Provided is an inductance element which is not interfered by peripheral circuits when mounted on a wiring board, by forming a closed magnetic path, and has a small reduction of an inductance value even when a direct current is superimposed, namely, has excellent direct current superimposition characteristics. The temperature coefficient of the magnetic permeability of a ferrite sintered body which constitutes a magnetic core (5) is permitted to be positive. The temperature coefficient of the magnetic permeability of a soft magnetic resin constituting an external (8) formed to cover a coil (7) and to fill a space between flange sections (3, 4) of the magnetic core (5) is permitted to be -30ppm/°C Or less, preferably -1,000ppm/°C or less.</p>
申请公布号 WO2009044760(A1) 申请公布日期 2009.04.09
申请号 WO2008JP67793 申请日期 2008.10.01
申请人 MURATA MANUFACTURING CO., LTD.;HAGIYA, AKIO 发明人 HAGIYA, AKIO
分类号 H01F27/24 主分类号 H01F27/24
代理机构 代理人
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