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Attenuating induced HF on connecting leads

D

David Fussell

Jan 1, 1970
0
Hi,

I am in the process of adding a (solid-state) relay driver board as a
'daughter
board' to an existing design/enclosure. I have to take the
relay 'contact' connections to a new connector in the enclosure, for
connection to the outside world. The 'contacts' will be passing < 50mA
@ 24V. The inductance of the load will only be that of wiring,
therefore I'm not so concerned with the likelyhood of large current
spikes, more the issue of attenuating any induced HF component(s) that
may be picked up by the connections to the load, and thus brought into
the enclosure (and vice-versa). I'd imagined that ferrite beads were
usually used for this purpose, but was wondering what other techniques
were in use. (Ferrites might prove difficult to apply since the
connector is PCB mounting). Will simply adding some series inductance
to each lead achieve the desired effect?

Thanks,

David
 
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