| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a thin electromagnetic inductor which requires small mounting area, when it is mounted to a wiring board. SOLUTION: The electromagnetic inductor is formed by loading primary and secondary windings 11, 12 to a flat bobbin 1T, where a size D1 in the axial direction is shorter than a size D2 in the radial direction, inserting leg portions 24T, 24T of a pair of T-shape core pieces 23T, 23T into a center hole 20 of the bobbin 1T, with arms 25T, 25T of the core pieces 23T, 23T extending in parallel in the radial direction of the windings 11, 12 in opposition with each other, and extending the connection terminal of a wiring board K in the radial direction of the windings 11, 12.</p> |
