[TowerTalk] Tin Whiskers..Re: PL-239 Going Open?

[jimlux]

Kim Elmore wrote:
> Here's what I know about it:
> 
> http://nepp.nasa.gov/WHISKER/index.html
> 

Only pure tin is a problem (pure some other metals too..)..  Almost 
anything alloyed with it stops it, as does conformal coating.

For space applications, there's an exemption from RoHS, but of course, 
that doesn't do you any good if nobody sells traditional lead/tin. 
There's a whole raft of other procedures possible (e.g. dipping the 
leads in lead/tin or x/tin solder), the details of which are probably 
export controlled.

Jim