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EMI filters

  • US 6,778,034 B2
  • Filed: 05/07/2002
  • Issued: 08/17/2004
  • Est. Priority Date: 05/07/2002
  • Status: Expired due to Fees
First Claim
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1. An electromagnetic interference filter, comprising:

  • a core having;

    at least one electrically conductive signal or power-insulated lead;

    at least one first layer made of glass-coated metal microwire surrounding said lead and serving as a magnetic absorbent material; and

    a tubular conductive material surrounding said first layer; and

    a substrate on which said core is mounted, said substrate being configured as a planar body having a top, a bottom and side surfaces, portions of said top and bottom surfaces being covered with an electrically conductive material serving as signal and ground terminals and making electrical contact with the tubular conductive material.

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