TDK Launches the Industry's First Common-Mode Filter Designed

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

Operating Temperature Range is -40 Degrees C to +125 Degrees C, Corresponding to the Severe Environment within an Engine Compartment

TOKYO—(BUSINESS WIRE)—April 4, 2006— TDK Corporation (NYSE: TDK) 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) x 7.0mm (W) x 4.3mm (T). Its operating temperature range is -40 degrees C to +125 degrees C, exceeding TDK's previous component operating temperature range of -25 degrees C to +85 degrees 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 degrees C to +125 degrees C. The reliability that these features provide make this common-mode filter ideally suited for in-vehicle ECU power line conditioning.

As of April 4, 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

Major Features

1. Operating temperature range

-40 degrees C to +125 degrees C

2. Reliability assurance testing

Thermal shock test between -40 degrees C and +125 degrees 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


                    Common-Mode
 Product Name     Impedance (ohm)    Current Rating   Voltage Rating
                (at 100MHz)(typical)        (A)             (V)
--------------- -------------------- ---------------- ---------------
ACM90V-701-2PL          700                5.0              80
--------------- -------------------- ---------------- ---------------

Production and Sales Plan

-- Volume production start date: April 2006

-- Production capacity: 1 million per month

Contact:

TDK Corporation
Nobuyuki Koike, +81-3-5201-7102

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