Title:
COMMON MODE FILTER USING COMPOUND MAGNETIC MATERIAL
Document Type and Number:
Japanese Patent JP3431496
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enable restraining the electromagnetic disturbance noise of common mode ranging from a MHz band to a GHz band which travels on a line, by using compound magnetic material whose main component is Si-Fe based metal magnetic powder having a scale shape or the like, and improving the frequency characteristic of the impedance.
SOLUTION: Two penetrating conducting members 12 are made to penetrate through and fixed on a compound magnetic member 10, constituted of a molded member of compound magnetic material whose main component is scale-shaped Si-Fe based metal magnetic powder. Parts which stretch to both sides of the compound magnetic member 10 are made as external terminals 13. A space between the two penetrating conducting members 12 is prevented from the infiltration of the compound magnetic material, and a common through-hole part 11 is formed to the two penetrating conducting members 12.
Inventors:
Naoji Akino
Takashi Tanaka
Toshinori Sasaki
Yoshiaki Akachi
Takashi Tanaka
Toshinori Sasaki
Yoshiaki Akachi
Application Number:
JP12391498A
Publication Date:
July 28, 2003
Filing Date:
April 20, 1998
Export Citation:
Assignee:
TDK Co., Ltd.
International Classes:
H01F37/00; H01F17/06; (IPC1-7): H01F17/06; H01F37/00
Domestic Patent References:
| JP9295862A | ||||
| JP766041A | ||||
| JP5121244A | ||||
| JP11273924A | ||||
| JP11273925A | ||||
| JP2122410U |
Attorney, Agent or Firm:
Takashi Murai
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