MAGNETIC CORE AND INDUCTANCE COMPONENT USING THE SAME

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PROBLEM TO BE SOLVED : To provide a magnetic core that has a superior core loss characteristic and a d.c. superimposing characteristic and is inexpensive, and an inductance component using the same. SOLUTION : The magnetic core has a gap at one or more places of a magnetic path, and a bond magnet is inserted into the gap. The bond magnet is made of resin and rare earth magnet powder whose inherent coersive force is 10×103×(1/4π) KAT/m or larger, Tc is 500°C or higher and average particle size is 2.5-50 μm, and its specific resistance is 1.0 Ωcm or larger and its demagnetizing factor when it is heated at 270°C for 30 minutes in an atmosphere is within 8%. The inductance component is comprised of the magnetic core 11 and a winding 4 with one turn or more.