10A board mount EMC filter from TDK

TDK-Lambdavisit website


TDK Corporation is introducing the iDQ series of 10A, 48V DC nominal EMC filter modules. With high on-board capacitance, the filters are suitable for use with DC-DC converters, minimising the need for external components and thus saving on printed circuit board area.

Rated for a maximum voltage of 75V DC, the iDQ has a differential mode attenuation of 63dB at 300kHz measured with a 50Ω source and load impedance. The compact filter measures just 50mm in length, 15mm in width, with a height of 10.8mm. The iDQ will operate without forced air cooling in ambient temperatures of -40 to +85degC.

Utilising TDK component technology, system-level compliance to FCC and CISPR is made easier. A pin is provided for the addition of extra capacitance to further enhance common mode performance. The iDQ has 1500V DC isolation from ground; enabling operation in systems where the ground is connected to either the positive or negative input.

For more information about the full range of TDK-Lambda iDQ series of DC input filters, please visit the TDK-Lambda website at

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