A multilayer inductor component has a multilayer part having a plurality
of magnetic layers laminated therein and a conductor part arranged within
the multilayer part. The magnetic layers are formed from a ferrite
material and an additive. The ferrite material contains Fe.sub.2O.sub.3,
NiO, CuO, and ZnO. Fe.sub.2O.sub.3 is 30 to 45 mol %. NiO is 45 to 58 mol
%. CuO is 6 to 10 mol %. ZnO is 0 to 3 mol %. The additive contains CoO.
The content of CoO is 0.1 to 2.5 mass % with respect to the ferrite
material as a whole. The multilayer inductor component has an impedance
peak of 500 .OMEGA. or greater at an operating frequency of 1 GHz or
higher.