[tinwhiskers] Re: Bourns announces hot dipping of tin - comments?
- From: "Patrick Bruneel" <patrick@xxxxxxxxxxxxxxxx>
- To: <tinwhiskers@xxxxxxxxxxxxx>
- Date: Fri, 13 Feb 2009 14:38:20 -0600
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.
<https://mclmail.saic.com/exchange/fritzdd/Drafts/RE:%20%5btinwhiskers%5d%20
Re:%20Bourns%20announces%20hot%20dipping%20of%20tin%20-%20comments_x003F_.EM
L/1_multipart/image003.jpg>
_____
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 :-)
<https://mclmail.saic.com/exchange/fritzdd/Drafts/RE:%20%5btinwhiskers%5d%20
Re:%20Bourns%20announces%20hot%20dipping%20of%20tin%20-%20comments_x003F_.EM
L/1_multipart/image001.jpg>
_____
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).
<https://mclmail.saic.com/exchange/fritzdd/Drafts/RE:%20%5btinwhiskers%5d%20
Re:%20Bourns%20announces%20hot%20dipping%20of%20tin%20-%20comments_x003F_.EM
L/1_multipart/image002.jpg>
_____
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.
Denny
Thursday, February 12, 2009
Hot-dipped-tin process offers path to increased market share in competitive
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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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