[tinwhiskers] Re: Bourns announces hot dipping of tin - comments?

  • From: Werner engelmaier <engelmaier@xxxxxxx>
  • To: tinwhiskers@xxxxxxxxxxxxx, patrick@xxxxxxxxxxxxxxxx
  • Date: Fri, 13 Feb 2009 16:18:02 -0500

Hi Patrick,
You forgot election euphoria.

Werner


-----Original Message-----
From: Patrick Bruneel <patrick@xxxxxxxxxxxxxxxx>
To: tinwhiskers@xxxxxxxxxxxxx
Sent: Fri, 13 Feb 2009 3:38 pm
Subject: [tinwhiskers] Re: Bourns announces hot dipping of tin - comments?

Thanks for the advice Fritz
 
But since I live in the USA for a long time we got this covered.
The warning label will read:
 
Danger:
  • Will burn when lit.
  • If used unattended might cause fire.
  • Open flame removes oxygen from its surroundings and can cause shortness of breath.
  • Can produce dangerous levels of dioxin when used in non ventilated areas (especially caves).
  • Exposure to burning GREEN candles has been linked to birth defects, inability to maintain pregnancy, decreased fertility, reduced sperm counts, endometriosis, diabetes, learning disabilities, immune system suppression, lung problems, skin disorders, lowered testosterone levels and much more.
 
From: tinwhiskers-bounce@xxxxxxxxxxxxx [mailto:tinwhiskers-bounce@xxxxxxxxxxxxx] On Behalf Of Fritz, Dennis D.
Sent: Friday, February 13, 2009 1:44 PM
To: tinwhiskers@xxxxxxxxxxxxx; tinwhiskers@xxxxxxxxxxxxx
Subject: [tinwhiskers] Re: Bourns announces hot dipping of tin - comments?
 
Patrick,
 
Be very careful on those green candles!!!  A common pigment is heavily chlorinated copper phthalocycanine blue pigment (reference - http://en.wikipedia.org/wiki/Phthalo_Green.    So, when you burn the green candle, you might be making extremely small traces of that forbidden stuff - dioxin.  That is the same crux of the halogen free PWB laminate donnybrook - burning FR4 boards with brominated flame retardant (in a poorly run incinerator) makes a wee bit of dioxin.  And, so does roasting a circuit board on an open fire in a third world country to scavange components that will later be re-labeled and turn up as counterfeit. 
 
Suggest to your daughter she sell non-pigmented, or at worst, blue candles if she wants to be "green"
 
Denny Fritz
SAIC
 
From: tinwhiskers-bounce@xxxxxxxxxxxxx on behalf of Patrick Bruneel
Sent: Fri 2/13/2009 1:20 PM
To: tinwhiskers@xxxxxxxxxxxxx
Subject: [tinwhiskers] Re: Bourns announces hot dipping of tin - comments?
Dewey,
 
Lol
I told her that it didn’t matter what color candles she sold as long as they were GREEN.
 
 
From: tinwhiskers-bounce@xxxxxxxxxxxxx [mailto:tinwhiskers-bounce@xxxxxxxxxxxxx] On Behalf Of Whittaker, Dewey (EHCOE)
Sent: Friday, February 13, 2009 12:00 PM
To: tinwhiskers@xxxxxxxxxxxxx; TechNet E-Mail Forum
Subject: [tinwhiskers] Re: Bourns announces hot dipping of tin - comments?
 
You told her that so the burnt offerings would reveal their wicked past or that today’s enlightenment was just a waxen image of its former self.
Dewey
 
From: tinwhiskers-bounce@xxxxxxxxxxxxx [mailto:tinwhiskers-bounce@xxxxxxxxxxxxx] On Behalf Of Patrick Bruneel
Sent: Friday, February 13, 2009 10:38 AM
To: tinwhiskers@xxxxxxxxxxxxx
Subject: [tinwhiskers] Re: Bourns announces hot dipping of tin - comments?
 
John,
 
My daughter has a flower store in Europe and I advised her to also sell candles they will need a lot of them soon J
 
From: tinwhiskers-bounce@xxxxxxxxxxxxx [mailto:tinwhiskers-bounce@xxxxxxxxxxxxx] On Behalf Of John Burke
Sent: Friday, February 13, 2009 11:13 AM
To: tinwhiskers@xxxxxxxxxxxxx
Subject: [tinwhiskers] Re: Bourns announces hot dipping of tin - comments?
 
Someone banned the Gas chips?......8-)
 
John Burke
(408) 515 4992
 
From: tinwhiskers-bounce@xxxxxxxxxxxxx [mailto:tinwhiskers-bounce@xxxxxxxxxxxxx] On Behalf Of Patrick Bruneel
Sent: Friday, February 13, 2009 9:11 AM
To: tinwhiskers@xxxxxxxxxxxxx
Subject: [tinwhiskers] Re: Bourns announces hot dipping of tin - comments?
 
Good one Werner
 
Would the eco-enemies have something to do with the current economy?
 
In Belgium 1/3 of their mobile network went down (and they still don’t know why).
 
From: tinwhiskers-bounce@xxxxxxxxxxxxx [mailto:tinwhiskers-bounce@xxxxxxxxxxxxx] On Behalf Of Werner engelmaier
Sent: Friday, February 13, 2009 10:49 AM
To: tinwhiskers@xxxxxxxxxxxxx; DENNIS.D.FRITZ@xxxxxxxx
Subject: [tinwhiskers] Re: Bourns announces hot dipping of tin - comments?
 
It is a minimum of 3% Pb not exactly 3% Pb.
This whole Pb-ban is so silly [or would be if it were not so sad].
In the name of being 'green', we now use more energy [so much for sustainability], more vapor phase soldering [so much for being eco-friendly], throw more things in the garbage [more environmental friendliness not to say anythingabout inconvenience, economic loss and reduced safety], retrofit Pb-free components with Pb [ wouldn't it be better and easier making them with SnPb solder in the first place],
With all these 'green' friends [who do not know what the hell they are doing], who needs eco-enemies.

Werner
 
 
-----Original Message-----
From: Fritz, Dennis D. <DENNIS.D.FRITZ@xxxxxxxx>
To: tinwhiskers@xxxxxxxxxxxxx
Sent: Fri, 13 Feb 2009 10:55 am
Subject: [tinwhiskers] Bourns announces hot dipping of tin - comments?
I was wondering if there are any comments about this whisker mitigation strategy 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
announced in Electronic Design News yesterday by Bourns.  This says "hot dipped 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
tin" as in lead-free.  Seems to me if this is really pure tin, it would be 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
really hot exposure of the components, and I am seeking any data to say how much 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
better "dipped tin" would be than "plated tin" for mitigation.  Seems to me they 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
could hot dip 3% lead in tin, but I guess that would be a special order for RoHS 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
exempt industries. 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
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Thursday, February 12, 2009



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 




































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 




































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
Hot-dipped-tin process offers path to increased market share in competitive 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
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Feb 12 2009 11:15AM | Permalink <http://www.edn.com/blog/1470000147/post/190040619.html>  



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
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One of the concerns of companies complying with lead-free <http://www.edn.com/hot-topic/48810/rohs.html>  



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
manufacturing processes under the European ROHS <http://www.edn.com/hot-topic/48810/rohs.html>  



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
(Restriction of Hazardous Substances) directive is the tin whiskers that can 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
develop over time on tin plating. Trim pot manufacturer Bourns 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
<http://www.bourns.com/>  recently announced it was shifting its entire line to 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
a new hot-dipped-tin process for the trim pots' terminals. Bourns will no longer 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
offer the old matte-finished parts because of the tin-whisker danger. Although 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
the company made the change at the request of its customers, it won't be passing 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
the price increase on.



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 




































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
Emill Melliz, Bourns' potentiometer product line manager, puts the price 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
increase at between 5-7%. Why is Bourns eating this not-inconsiderable amount? 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
They see it as a way to increase market share in a very competitive economy. 



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 
Smart company.



































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 




































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 




































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 




































 




































 
 




































 




































 
 
 




































 




































 
 




































 




































 
 
 
 

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