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Sheila Smith wrote:
>
> Technetters:
>
> I am soliciting opinions on conformal coating of PBW-mounted connectors.
> Our manufacturing folks refuse to conformal coat within 1/8" of any board
> mount connectors. They contend the conformal coating will wick up the pins
> and get on the contact areas, regardless of the type of conformal coating
> used or the method of application. The connectors are not sealed. These
> boards have to pass salt fog & humidity testing and I don't like the idea of
> having bare areas, especially at the interface where the connector meets the
> board. Does anyone have any experience with this? Thanks in advance for
> your help!
>
> S. Smith, Tracor Aerospace Electronics Systems
>
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Sheila, there are ways to protect the connectors while the boards are
being coated with a conformalcoating. You can tape them individually or
design a cover fixture if they are adjacent to each other.
It all depends upon how the boards are being coated? by spray, dipping
or a vapor deposition method like used for "Parylene" conformal coating.
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