T-filters provide EMI protection

Syfer Technology has brought out a new range of compact, panel-mounted T filters to provide EMI protection in a wide range of industry sectors.

Syfer Technology has brought out a new range of compact, panel-mounted T filters to provide EMI protection in a wide range of industry sectors including aerospace, communications and microwave modules.

The first two families to become available are the SFKKT and SFAKT featuring round or hexagonal bodies respectively.

These feed-through EMI filters are smaller than previous versions, and smaller than competitive devices for equivalent capacitance values.

They will particularly suit equipment where panel space is at a premium.

The SFKKT versions with 4.6mm pitching and screw-in heads are specifically designed for high-density mounting.

The T filters integrate two inductors and one discoidal multilayer ceramic capacitor, using C0G or X7R dielectric material.

They deliver capacitance values from 10pF to 47nF, with a maximum operating voltage of 500V DC, up to 6.8nF.

The high operating voltage similarly helps to protect circuits from voltage spikes or transients.

The filter devices offer excellent insertion loss performance up to full rated voltage and to the extremes of rated temperature (-55 to 125oC).

They are designed primarily for circuits with a low impedance source and low impedance load, such as DC power lines.

The SFKKT and SFAKT families are manufactured in the UK at Syfer's Norwich facility and are available in volume.

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