Patent ID: 7209022

Claim:
A surface-mounting coil component, comprising: a drum-type ferrite core comprising a winding core, and upper and lower flanges provided on each ends of the winding core; external electrodes provided on a surface of either of the flanges; and a winding wound around the winding core of the drum-type ferrite core and conductively connected to the external electrodes on both ends, wherein the surface-mounting coil component has a resin coating material with magnetic powder that fills a space between the upper flange and the lower flange of the drum-type ferrite core, covering the winding between the upper flange and the lower flange, and wherein the physical property of the resin coating material with magnetic powder upon hardening is, regarding changes of modulus in torsion to temperature, that a glass transition temperature of about −20° C. or lower in a course of transferring from a glass state to a rubber state.