News Center | Press Releases

TDK Develops and Begins Mass Production of Industry's First* Automotive Clamp Filter

Information contained in the news releases are current as of the date of the press announcement, but may be subject to change without prior notice.

Industry's First* Automotive Clamp Filter

January 22, 2008

TDK Corporation announced today that it has developed and began mass production of the industry's first* automotive clamp filter in December. The new filter is called the ZCAT08V-BK, ZCAT12V-BK.

EMC countermeasures for onboard automotive electronic components have become crucial as the use of electronic control grows in conjunction with the adoption of increasingly advanced functions and the use of electronic equipment for more functions.
In response to this market need, TDK developed clamp filters that are suitable for automotive use as an effective noise countermeasure against the effects of electromagnetic noise on the cables that link the various onboard ECUs** and units. TDK's clamp filters have an original structure consisting of a vertically-split cylindrical ferrite core with an integrated resin case for mounting on cables. The ferrite material, a key component of the filter, provides outstanding magnetic characteristics and high-frequency absorption properties achieved through precise control of the fine structure using TDK's original materials and process technologies.

  • * As of January 2008, according to TDK investigations.
  • ** Electronic control unit: Automotive ECUs initially were used primarily for engine control, but today they are used in numerous applications including drive systems such as antilock braking systems and electric power steering.

Main Features
  1. The resin case and core material have been improved to enhance heat resistant and shock resistance for use in automotive applications. The operating temperature range has been increased from earlier TDK products (-25°C - 85°C) to -40°C - 125°C.
  2. Specifications
    Product name: ZCAT08V-BK
    Impedance: 120 Ohm (measurement frequency: 100 MHz)
    Unit length: 33 mm; exterior diameter: 18 mm; interior diameter: 8 mm

    Product name: ZCAT12V-BK
    Impedance: 140 Ohm (measurement frequency: 100 MHz)
    Unit length: 35 mm; exterior diameter: 27 mm; interior diameter: 12 mm
Production and Sales Plans
  • Sample price : 300 yen/unit ?
  • Production location : Overseas
  • Production capacity : 100,000 units/month
  • Start of production : December 2007

For further information, contact the Corporate Communications Dept.
Tel.: 81-3-6778-1055