Patent ID: 7999651
Filing Date: 2011-08-16
Classification: H01F

Abstract:
1. A planar coil component comprising: a bobbin including a winding drum having an axial direction and a central opening, first and second flanges extending from respective, opposite sides of the winding drum, transverse to the axial direction of the winding drum, a terminal board located on at least one of the flanges, and a terminal protruding from the terminal board; a magnetic core including an end surface, first and second side legs protruding transverse to and from opposite ends of the end surface, and a central leg protruding transverse to and from the end surface and located centrally between the first and second side legs, wherein the central leg is located within the central opening of the winding drum of the bobbin and the first and second side legs are located at opposite sides of the winding drum of the bobbin, along a direction transverse to the axial direction of the winding drum; and a winding wound on the winding drum of the bobbin and having an end electrically connected to the terminal, wherein, when a plane perpendicular to the axial direction of the winding drum includes an X-direction perpendicular to the first and second side legs and a Y-direction perpendicular to the X-direction, with an X-axis centrally located with respect to the first and second side legs, along the X-direction, and a Y-axis centrally located with respect to the central leg along the Y-direction and intersecting the axial direction of the winding drum, then