| 简介 |
PROBLEM TO BE SOLVED : To provide a magnetic core having excellent core-loss characteristics and DC overlapping characteristics, and provide an inductance component using the magnetic core.SOLUTION : The magnetic core 11 has gaps at least at one place or more of a magnetic path. Rare-earth magnet powder has an intrinsic coercive force of 10×103×(1/4π)kA/m or more in the gaps, Tc at 500°C or higher, and a powder mean grain size of 2.5 to 50 μm. The surfaces thereof are coated with a low melting-point metal and a metallic oxide. The inductance component is composed of the magnetic core 11, to which a magnet 3 mixed with the powder and a resin and with a specific resistance of 1.0 Ω cm or more is inserted, and a winding 4 of at least one turn or more wound on the magnetic core 11 is provided. |
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