Categorized | EPCOS, Industry News


Posted on 16 September 2019

EMC filters: Very compact solution with extremely low leakage current








TDK Corporation presents a new series of EPCOS EMC filters. The B84142A*166 series of 2-line filters features types designed for rated currents of 10 A, 16 A, and 30 A at a rated voltage of 250 V AC (50/60 Hz). A particular feature is their very compact size: The 10 A and 16 A types measure only 84.5 mm x 52 mm x 38 mm, and the 30 A version only 130 mm x 84 mm x 69 mm. This permits mounting even when space is very limited. Another feature of the new series is its extremely low leakage current of less than 0.5 mA and 1.8 mA, depending on type. This prevents unintentional tripping of ground fault circuit interrupters (also known as residual current devices). In addition to their compact size, these filters offer a very high insertion loss of up to more than 100 dB.

The new filters meet the requirements for climate category 25/100/21, IEC 60068 1 and protection class IP00. The filters can be operated without derating at ambient temperatures of up to 50°C. Approvals to EN, UL and CSA are pending. Applications for the new EMC filters include converters and power electronics systems.

Main applications

  • Converters and power electronics systems

Main features and benefits

  • Very compact case size
  • Extremely low leakage current of <0.5 mA to 1.8 mA
  • Very high insertion loss of up to and exceeding 100 dB

Key data

Epcos EMC filter data

About TDK Corporation

TDK Corporation is a leading electronics company based in Tokyo, Japan. It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products. TDK's portfolio includes electronic components, modules and systems which are marketed under the product brands TDK and EPCOS, power supplies, magnetic application products as well as energy devices, flash memory application devices, and others. TDK focuses on demanding markets in the areas of information and communication technology and consumer, automotive and industrial electronics. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. In fiscal 2013, TDK posted total sales of USD 9.1 billion and employed about 80,000 people worldwide.

About TDK-EPC Corporation

TDK-EPC Corporation, a TDK group company, is the manufacturer of TDK’s electronic components, modules and systems and is headquartered in Tokyo, Japan. TDK-EPC was founded on October 1, 2019 from the combination of the electronic components business of TDK and the EPCOS Group. The product portfolio includes ceramic, aluminum electrolytic and film capacitors, ferrites, inductors, high-frequency components such as surface acoustic wave (SAW) filter products and modules, piezo and protection components, and sensors.

Further information on the products can be found under

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