Coil component
AssigneeTDK Corporation
InventorsYoshihiro Kawasaki, Syun Ashizawa, Hirohumi Asou, Nobuo Takagi
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Abstract
Disclosed herein is a coil component that includes a drum core having a winding core and first and second flange portions provided at opposite ends of the winding core; a wire wound around the winding core; terminal electrodes provided in the first and second flange portions, the terminal electrodes being connected to ends of the wire; and a magnetic top plate made of magnetic-powder containing resin in which soft magnetic metal powder having a flat shape is mixed in binder resin, the magnetic top plate being fixed to the first and second flange portions.
Claims2
A coil component comprising:
- a drum core having a winding core and first and second flange portions provided at opposite ends of the winding core;
- a wire wound around the winding core;
- terminal electrodes provided in the first and second flange portions, the terminal electrodes being connected to ends of the wire;
- and
- a magnetic top plate made of magnetic-powder containing resin in which soft magnetic metal powder having a flat shape is mixed in binder resin, the magnetic top plate being fixed to the first and second flange portions and including an outer peripheral region accounting for 10% of the entire area and a central region surrounded by the outer peripheral region;
- wherein a ratio of the central region in which the soft magnetic metal powder is present as viewed in a thickness direction to an entire area of the central region is equal to or higher than 95%.
A coil component comprising:
- a drum core having a winding core and first and second flange portions provided at opposite ends of the winding core;
- a wire wound around the winding core;
- terminal electrodes provided in the first and second flange portions, the terminal electrodes being connected to ends of the wire;
- and
- a magnetic top plate made of magnetic-powder containing resin in which soft magnetic metal powder having a flat shape is mixed in binder resin, the magnetic top plate being fixed to the first and second flange portions,
- wherein the magnetic top plate includes an outer peripheral region accounting for 10% of an entire area and a central region surrounded by the outer peripheral region, and
- wherein a ratio of the central region in which the soft magnetic metal powder is present as viewed in a thickness direction to an entire area of the central region is equal to or higher than 95%.
Dependencies are inferred from the claim text.