WINDING INDUCTOR AND PROCESS FOR MANUFACTURING THE SAME

摘要

Using a core based on an Fe alloy there are provided an inductor with enhanced current superposition characteristics and a process for manufacturing the same. There is disclosed a winding inductor including a core for winding inductor obtained by compression molding a mixed magnetic substance powder containing a magnetic substance powder and a binder and grinding the molded item and including a metal conductive wire wound in a core section of the core for winding inductor. One form of the winding inductor is characterized in that the magnetic substance powder in component proportion consists of 4 to 13 wt.% Si, 4 to 7 wt.% Al and the balanceFe and unavoidable impurities and has a particle diameter distribution such that 90% or more of the magnetic substance powder has a particle diameter of 75 µm or less.