| 摘要 |
PURPOSE:To obtain a smooth EMI characteristic without provision of an externally mounted resistor by making a ferrite raw material into low resistance to form a resistor in the inside of a filter. CONSTITUTION:After conductive paste is applied to a baked ferrite raw material 4 with an inner electrode 5 formed thereto to form an external electrode 6, the ferrite raw material 4 is baked in the oxygen concentration of 0.1% or below under the reduction or neutral environment, then the ferrite raw material 4 is made into a semiconductor whose resistance is low. Thus, the filter has an equivalent circuit equal to the parallel connection of an inductance by the internal electrode 5 and the resistance of the ferrite raw material 4. Thus, a smooth EMI(electromagnetic wave interference) elimination characteristic is obtained without external mount of a discrete electronic component. |
