Hi Jack - yep, that is one of the more difficult issues with tin whisker
risk mitigation. The use of coating materials has been shown to be an
acceptable risk mitigation for the capture/containment of a tin whisker but
on connectors, the wicking issues detailed by the TechNet crew, can work
against us as a valid implementation option.

Dave Hillman
Rockwell Collins
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On Thu, Feb 8, 2018 at 2:11 PM, Jack Olson <[log in to unmask]> wrote:

> We use right-angle headers with exposed leads, so it's a little bit
> confusing when a newbie like me reads articles that tell me I can coat my
> exposed connector leads to mitigate tin whisker growth and allow closer
> spacing with higher voltages, but then find out that the people actually
> doing the work advise against it, or recommend more complicated procedures
> to inhibit the liquid from spreading.
>
> I'm glad I asked,
> I'm grateful for TechNet, and
> I thank you for sharing your experience!
>
> Thank You,
> Jack
>