| 摘要 |
<p>PROBLEM TO BE SOLVED: To decrease size while suppressing the deterioration of inductor characteristics.SOLUTION: A drum core 2 made from a magnetic body has a first flange 21, a second flange 22, and a shaft portion 23. The shaft portion 23 is provided on a first side of the first flange 21. The second flange 22 opposes to the first flange 21 over the shaft portion 23. A conductive wire is wound around the shaft portion 23 to form a first coil 3. A first conductive portion 25 and a second conductive portion 26 are provided on a second side opposite to the first side in the first flange 21. The first flange 21 is formed with a first groove portion 21a1 and a second groove portion 21b1 so as to respectively recess a part of the first conductive portion 25 and the second conductive portion 26 to the first side. One end portion 3a of the wire is wound around a part including the first groove portion 21a1, and the other end portion 3b is wound around a part including the second groove portion 21b1.</p> |
