| 摘要 |
PROBLEM TO BE SOLVED: To provide a low cost inductance element achieving improved mass productivity by the omission of a lid portion, with suppressed reduction of a magnetic characteristic.SOLUTION: An inductance element 2 comprises: a toroidal core 3; a bottomed insulation resin case 4; and a cover portion 5. The bottomed insulation resin case 4 comprises: a cylindrical-shaped outer wall 6; a cylindrical-shaped inner wall 7; a button portion 8; and an open portion. The cover portion 5 comprises: a first and a second folding portion 10, 11 produced by folding the extension portions 6a, 7a of the cylindrical-shaped outer wall 6 and the cylindrical-shaped inner wall 7; and an intersection portion 12 produced by intersecting the folding portions 10, 11. The first folding portion 10 is positioned outer than the second folding portion 11, and a gap of the intersection portion 12 is set to be 0.2 mm or smaller (including zero). |
