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TDK Launches the Industry's First* Common-Mode Filter Designed for In-Vehicle ECU** Power Line Conditioning

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TDK Launches the Industry's First* Common-Mode Filter Designed for In-Vehicle ECU** Power Line Conditioning

Operating temperature range is -40°C to +125°C, corresponding to the severe environment within an engine compartment


Common-mode filter ACM90V-701-2PL for use as an in-vehicle ECU power line conditioner
Common-mode filter ACM90V-701-2PL for use
as an in-vehicle ECU power line conditioner

April 3, 2006

TDK Corporation has announced the development and commercialization of the ACM90V-701-2PL common-mode filter designed for in-vehicle power line conditioning.

The dimensions of this power line noise suppression SMD device are 9.0mm (L) × 7.0mm (W) × 4.3mm (T). Its operating temperature range is -40°C to +125°C, exceeding TDK's previous component operating temperature range of -25°C to +85°C.

In the automotive field electronic control technology is rapidly advancing and the percentage of ECU-equipped vehicles is increasing. In particular, the rapid increase in ECU's installed in severe temperature environments, such as the engine compartment, are increasing the requirements of noise suppression component capabilities. In this case, noise suppression components with high temperature resistance and high reliability are highly desirable.

In response to these market demands, this product incorporates high temperature resistant insulation-coated wire and product construction emphasizing shock and vibration resistance. Specifically, this product achieves an operating temperature range of -40°C to +125°C. The reliability that these features provide make this common-mode filter ideally suited for in-vehicle ECU power line conditioning.

TDK will exhibit the ACM90V-701-2PL in its booth at Techno-Frontier 2006 (Noise Reduction & Damping Technology 2006) at the Makuhari Messe International Convention Center beginning April 19.

* As of April 3, 2006 according to TDK investigation.


Explanation of Terminology
** ECU: Electronic Control Unit. Originally the primary purpose of an in-vehicle ECU was engine control. However, recently ECU's have been used to control a variety of drive system functions including ABS and EPS.
Major Applications
Noise suppression for the power supply lines of ECU, vehicle navigation, and other devices
Main Features
  1. Operating temperature range
    -40°C to +125°
  2. Reliability assurance testing
    Thermal shock test between -40 °C and +125 °C, with 30 minute hold times, for 1000 cycles.
  3. Lead free
    This product contains no lead or lead compounds, and can be mounted using lead-free processes.
Primary Specifications
Product Name Common-Mode Impedance (Ω)
(at 100MHz) (typical)
Current Rating (A) Voltage Rating(V)
ACM90V-701-2PL 700 5.0 80
Production and Sales Plan
  • Sample price: 120 yen
  • Samples availability: March 2006
  • Volume production start date: April 2006
  • Production capacity: 1 million per month
  • Production location: China

For further information, contact the Corporate Communications Dept.
Tel.: 81-3-6778-1055
E-mail: pr@jp.tdk.com

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