SOFT MAGNETIC MATERIAL AND DUST CORE

摘要

A soft magnetic material and a dust core in which eddy-current loss can be decreased are provided. A soft magnetic material includes a plurality of composite magnetic particles 30 each including a metal magnetic particle 10 and an insulating coating 20 covering the metal magnetic particle 10, wherein each of the plurality of composite magnetic particles 30 has a ratio of the maximum diameter to the equivalent circle diameter of more than 1.0 and 1.3 or less and a specific surface area of 0.10 m 2 /g or more. Each of the plurality of composite magnetic particles 30 preferably has an average particle diameter in the range of 10 to 500 µm.