The invention provides a coil component. The coil component has a drum core, a wire and a terminal electrode; the drum core has a coiling core portion and a pair of protruding rims arranged on ends of the coiling core; the wire is wound on the coiling core; the terminal electrode is electrically connected to the end of the wire and is fixed on the protruding rim through an adhesive; and the coil component improves thermal resistance circulation under a state of being installed on the substrate. A terminal electrode is secured to a flange portion with an adhesive and includes a base disposed on an outer surface of the flange portion and a mounting portion disposed above a bottom surface of the flange portion and extending from a bent portion extending from the base and covering a ridge line along which the outer surface and the bottom surface meet. The mounting portion is not secured to the flange portion.