| 摘要 |
<p>PURPOSE:To contrive both accomplishment of miniaturization and improvement in productivity of the title composite part by a method wherein a coil-resistor composite part is constituted by winding a resistance wire on a ferrite core, and thin coil-resistor composite part is used for a power source circuit. CONSTITUTION:When a resistance wire 4 is wound on a ferrite core 3, the resistance component of the resistance wire 4 and the inductance component, generated by winding the resistance wire 4 on the ferrite 3, are generated. Accordingly, when the resistance wire 4 is wound on the ferrite core 3, the characteristics equivalent to those obtained by connecting a coil and a resistor can be attained, and a coil-resistor component part can be constituted. For example, the series-connected part of the resistor for protection of a power source circuit from inrush current and a choke coil for noise removal can be constituted by a part. As a result, miniaturization of circuit structure and improvement of productivity can be achieved.</p> |
