EMC high current filters are introduced by TDK 

The first range of EMC high current filters to be announced by TDK have attenuation characteristics from 9.0 to 150kHz. The B84143C*S250/S251 series of three-line EMC filters are designed for converter applications with high currents. 

Depending on the type, the Epcos branded filters y are designed for rated voltages of 305 or 530V AC and 440 or 760V AC (50 / 60Hz) at rated currents of 160 to 2500A. 

The filters are distinguished by the high attenuation figures (9.0 to 150kHz). In order to meet the requirements of UL in switch cabinet construction, the complete filter series has been designed for a short circuit current rate value of 100kA. 

The compact housings are protected and rated to IP 00 are very compact in size. The smallest model measures 350 x 240 x 120mm and at the other end of the scale, the largest has dimensions of 710 x 365 x 257mm. 

The earth leakage currents of all types are 46mA according to IEC 60939-1:2010. Approvals under IEC 60939-3, UL 60939-3 and CSA C22.2 No.8 have been issued. 

Typical applications for these input filters include frequency converters for motor drives, wind turbines and power supplies. 

TDK is based in Tokyo, Japan. It was established in 1935 to commercialise ferrite, a key material in electronic and magnetic products. Its product portfolio features passive components such as ceramic, aluminium electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo and protection devices. The product spectrum also includes sensors and sensor systems such as temperature and pressure, magnetic and MEMS sensors. In addition, TDK provides power supplies and energy devices and magnetic heads.

The products are marketed under the product brands TDK, Epcos, InvenSense, Micronas, Tronics and TDK-Lambda. 

TDK focuses on demanding markets in automotive, industrial and consumer electronics, and information and communication technology. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. 


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