TDK Lambda: EMC filter modules

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TDK Lambda ha announced the introduction of the iDQ series of 10A, 48Vdc nominal EMC filter modules.   With high on-board capacitance, the filters are ideal 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 75Vdc, the iDQ has a differential mode attenuation of 63dB at 300 kHz 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 +85ºC.

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 perfor-mance.  The iDQ has 1500Vdc isolation from ground; enabling operation in systems where the ground is connected to either the positive or negative input.10

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