The article referenced below by David is really good and really scary!
The article can be downloaded but requires that you identify yourself so
they can send by email a link to download the article. Look here and
read down the list to the sixth article available for download:
https://foresiteinc.com/resources/
Look for the article titled, "Low Voltage, the Incompetent Ignition
Source – Dispelling the Myth."
While this article is focused on problems resulting from use of no-clean
solder fluxes commonly used today, note that activated rosin fluxes, if
not thoroughly cleaned after soldering, leave the activation chemicals
on the board.
Larry
On 5/14/2018 9:56 AM, Van Horn, David wrote:
There's a great article out there on the web. It takes a bit of digging, but the title is
"Low voltage, the incompetent ignition source".
They discuss fires on PCBs caused by trace contaminants and dendrite growth. A
PCB with sustained flame is shown, powered by a lithium coin cell....
--
Best wishes,
Larry McDavid W6FUB
Anaheim, California (SE of Los Angeles, near Disneyland)
--
Best wishes,
Larry McDavid W6FUB
Anaheim, California (SE of Los Angeles, near Disneyland)
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