Dust core, method for manufacturing dust core, inductor including dust core, and electronic/electric device including inductor

A dust core containing:

• a powder of an amorphous magnetic material having a first median diameter D50a and a first content;
• and
• a powder of a crystalline magnetic material having a second median diameter D50c and a second content,
• wherein a sum of the first content and the second content is 83 mass percent or more, and a mass ratio of the second content to the sum of the first content and the second content is 20 mass percent or less,
• wherein the first median diameter D50a is equal to or greater than the second median diameter D50c, and
• wherein a ratio of a 10% cumulative diameter D10a in a volume-based cumulative particle size distribution of the amorphous magnetic material powder to a 90% cumulative diameter D90c in a volume-based cumulative particle size distribution of the crystalline magnetic material powder ranges from 0.3 to 1.25.