Compact 10-A EMC filter works with DC/DC converters

Jan. 4, 2016

TDK Corp. has announced the introduction of the printed-circuit-board-mount DC-input TDK-Lambda iDQ48010A480V EMC filter. Designed to reduce emissions from high-frequency DC/DC converters, the unit features high on-board capacitance that minimizes the need for additional external components and provides differential-mode filtering. They can be used in test-and-measurement, datacom, and telecom equipment.

The iDQ filter can be used with voltages up to 75 VDC, is rated at 10 A, and will operate at full current with natural convection in ambient temperatures from -40 to +85°C. Differential-mode attenuation at 300 kHz is 63 dB with a 50-Ω source and load impedance. The package size is 50 mm long, 15 mm wide, and 10.8 mm high.

The iDQ takes advantage of TDK component technology and helps simplify system-level compliance with FCC and CISPR standards. The filters have 1500-VDC input/output to ground isolation, allowing them to be used with either positive- or negative-grounded systems. An additional pin is provided to connect additional capacitance to increase common mode attenuation.


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