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

To: Kim Elmore <cw_de_n5op@sbcglobal.net>, jimlux <jimlux@earthlink.net>
Subject: Re: [TowerTalk] Tin Whiskers..Re: PL-239 Going Open?
From: Bill MacLane <ai4wm@yahoo.com>
Reply-to: ai4wm@yahoo.com
Date: Mon, 22 Dec 2008 16:57:17 -0800 (PST)
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Jim,
TNX for posting the link.  It's filled with some great information

73,
Bill
AI4WM


--- On Sun, 12/21/08, jimlux <jimlux@earthlink.net> wrote:

> From: jimlux <jimlux@earthlink.net>
> Subject: [TowerTalk] Tin Whiskers..Re:  PL-239 Going Open?
> To: "Kim Elmore" <cw_de_n5op@sbcglobal.net>
> Cc: towertalk@contesting.com, "Bill Aycock" <baycock@hughes.net>
> Date: Sunday, December 21, 2008, 10:23 PM
> 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
> _______________________________________________
> 
> 
> 
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