Tony,
? Looks complicated but as Jim said I (we) shouldn't even worry
about it as hobbyists.
Dave
On 10/27/2020 5:08 AM, Tony Smith
wrote:
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Ah
yes, I did mean I still use the leaded stuff, maybe I should
stop chewing it.
?
And
at least in Australian, you can buy it easily enough and
it’s $10/roll cheaper than lead-free, so yay for us I guess.
?
As
far as RoHS, Wikipedia has a reasonable write-up: .?
Huh, there’s 10 things on the list now.
?
Weighing
by individual materials eliminates cheating.? Say your cable
is a metre long, weighs 1000 grams and the solder joints
have 2 grams of lead, at 0.2% it’s double the limit.? No
problems, just make the cable twice as long.? You still have
the same amount of leaded solder but now 2 grams of lead in
a 2000 gram cable is 0.1%, so it passes!? Everyone happy!
?
Under
RoHs both cables have 40% lead in the solder, so you need to
sort that out.
?
They
don’t make the limit 0% because easier said than done, plus
a tiny little bit of lead in steel & brass makes it
easier to machine.
?
Tony
?
?
?
?
I think you meant to type, "leaded"
instead of, "lead free" - your 2nd link is to classic 60-40
Sn-Pb solder. Some of the early Pb free solders were
genuinely unpleasant to work with, enough so that whoever
did the plumbing in my house chose to silver braze
everything instead of using whatever Pb free soft solder was
available locally.
Roy
