[tinwhiskers] Re: Bourns announces hot dipping of tin - comments?
- From: Steve Smith <steve@xxxxxxxxxxxxxxxxxxxxxx>
- To: Werner engelmaier <engelmaier@xxxxxxx>
- Date: Fri, 13 Feb 2009 09:02:29 -0800
Hello Werner,
I agree with you entirely.
A great deal of energy has gone into pushing the world and sustaining
that push in this direction.
Energy costs money.
Who profits?
Follow The Money.
Steve Smith
We> It is a minimum of 3% Pb not exactly 3% Pb.
We> This whole Pb-ban is so silly [or would be if it were not so sad].
We> In the name of being 'green', we now use more energy [so much for
We> sustainability], more vapor phase soldering [so much for being
We> eco-friendly], throw more things in the garbage [more
We> environmental friendliness not to say anythingabout inconvenience,
We> economic loss and reduced safety], retrofit Pb-free components
We> with Pb [ wouldn't it be better and easier making them with SnPb solder in
the first place],
We> With all these 'green' friends [who do not know what the hell
We> they are doing], who needs eco-enemies.
We> Werner
We>
We>
We> -----Original Message-----
We> From: Fritz, Dennis D. <DENNIS.D.FRITZ@xxxxxxxx>
We> To: tinwhiskers@xxxxxxxxxxxxx
We> Sent: Fri, 13 Feb 2009 10:55 am
We> Subject: [tinwhiskers] Bourns announces hot dipping of tin - comments?
We> I was wondering if there are any comments about this whisker mitigation
strategy
We> announced in Electronic Design News yesterday by Bourns. This says "hot
dipped
We> tin" as in lead-free. Seems to me if this is really pure tin, it would be
We> really hot exposure of the components, and I am seeking any data to say how
much
We> better "dipped tin" would be than "plated tin" for mitigation. Seems to me
they
We> could hot dip 3% lead in tin, but I guess that would be a special order for
RoHS
We> exempt industries.
We>
We> Denny
We>
We> Thursday, February 12, 2009
We> Hot-dipped-tin process offers path to increased market share in competitive
We> times
We> Feb 12 2009 11:15AM | Permalink
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We> One of the concerns of companies complying with lead-free
We> <http://www.edn.com/hot-topic/48810/rohs.html>
We> manufacturing processes under the European ROHS
We> <http://www.edn.com/hot-topic/48810/rohs.html>
We> (Restriction of Hazardous Substances) directive is the tin whiskers that can
We> develop over time on tin plating. Trim pot manufacturer Bourns
We> <http://www.bourns.com/> recently announced it was shifting its entire
line to
We> a new hot-dipped-tin process for the trim pots' terminals. Bourns will no
longer
We> offer the old matte-finished parts because of the tin-whisker danger.
Although
We> the company made the change at the request of its customers, it won't be
passing
We> the price increase on.
We> Emill Melliz, Bourns' potentiometer product line manager, puts the price
We> increase at between 5-7%. Why is Bourns eating this not-inconsiderable
amount?
We> They see it as a way to increase market share in a very competitive economy.
We> Smart company.
We>
--
Best regards,
Steve mailto:steve@xxxxxxxxxxxxxxxxxxxxxx
www.consultingscientist.us
http://www.pickensplan.com/
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