Coil component magnetic base

A coil component comprising:

• a magnetic portion that includes metal particles and a resin material;
• a coil conductor embedded in the magnetic portion and having a core portion;
• and
• outer electrodes electrically connected to the coil conductor,
• wherein the magnetic portion includes a magnetic base having a protrusion portion, the protrusion portion extending from the magnetic base and including an end positioned a spaced distance from the magnetic base, and a magnetic outer coating,
• the coil conductor is disposed on the magnetic base such that the protrusion portion is located in the core portion,
• the magnetic outer coating covers the coil conductor, the magnetic base, and the end of the protrusion portion,
• the bottom surface of the magnetic base includes a recessed portion in an area opposite to the protrusion portion, and
• wherein the width of the recessed portion is from 0.3 to 0.8 mm.

A coil component comprising:

• a magnetic portion that includes metal particles and a resin material;
• a coil conductor made of a wire, embedded in the magnetic portion, and having a core portion, the core portion being a cavity surrounded by the wire;
• and
• outer electrodes electrically connected to the coil conductor,
• wherein the magnetic portion includes a magnetic base having a protrusion portion, the protrusion portion extending from the magnetic base and including an end positioned a spaced distance from the magnetic base, and a magnetic outer coating,
• the coil conductor is disposed on the magnetic base such that the protrusion portion is located in the core portion,
• the magnetic outer coating is disposed so as to cover the coil conductor, the magnetic base, and the end of the protrusion portion,
• the bottom surface of the magnetic base includes a recessed portion in an area opposite to the protrusion portion,
• the filling factor of the metal particles in the magnetic base is higher than the filling factor of the metal particles in the outer coating,
• the filling factor of the metal particles in the magnetic base is from 65% to 85%,
• the filling factor of the metal particles in the outer coating is from 50% to 75%,
• the protrusion portion is in shape of an elliptic cylinder having a major axis and a minor axis, and
• the ratio of the major axis to the minor axis is in a range of 1.2 and 1.7.