| 摘要 |
When the shape of a coil is simply made thinner, the conducting wire line width will be smaller, and the exposure area of a pull-out end part of the coil exposed on the surface of a molded body will be reduced. In such a case, there is a decrease in the area of the join between the pull-out end part of the coil and an external terminal, and an increase in variation in the resistance value. In the present invention, a coil formed by winding a conducting wire and a sealing material containing a resin and a magnetic material are used, the invention being provided with a molded body incorporating the coil. The coil is formed by winding a conducting wire having a circular cross-section, a conducting wire having a square cross-section, or a conducting wire having a rectangular cross-section with a vertical-horizontal ratio of 1:2 or less. The pull-out end part of the coil is formed by flattening the conducting wire so that the long diameter is at least 1.5 times the diameter of the conducting wire. The pull-out end part of the coil is exposed on the end surface of the molded body so that the long-diameter direction is parallel to the end surface of the molded body. |
