Coil component and magnetic metal powder containing resin used therefor

摘要

A coil component 1 is provided with coil conductors 10a and 10b and a magnetic metal powder containing resin 22 (22a and 22b) covering the coil conductors 10a and 10b. The magnetic metal powder containing resin 22 includes first metal powder having a first average grain diameter, second metal powder having a second average grain diameter that is smaller than the first average grain diameter, and third metal powder having a third average grain diameter that is smaller than the second average grain diameter. The first average grain diameter is 15 μm or more and 100 μm or less. The third average grain diameter is 2 μm or less. The first metal powder mainly contains Permalloy and the second and third metal powders mainly contain carbonyl iron.

主权项

1. A coil component, comprising:
a coil conductor; and a magnetic metal powder containing resin covering the coil conductor, wherein the magnetic metal powder containing resin includes a first metal powder having a first average grain diameter, a second metal powder having a second average grain diameter that is smaller than the first average grain diameter, and a third metal powder having a third average grain diameter that is smaller than the second average grain diameter, wherein the first average grain diameter is 15 μm or more and 100 μm or less, wherein the second average grain diameter is 3 μm or more and less than 10 μm, and wherein the third average grain diameter is more than one-fifth of the second average grain diameter and 2 μm or less.