Electronics Forum | Mon Jan 30 07:08:06 EST 2006 | Rob.
True, we weren't just checking for lead at the test lab we were also checking for banned substances in the plastics - PBB's & PBDE's which apparently appear a lot in the recycled plastics used in manufacturing connector bodies; & also the other banne
Electronics Forum | Thu Jan 12 15:43:57 EST 2006 | amol_kane
Hi all, while looking at some XRF equipment, a question arose as to the need for testing lead-free components at the CEM facility.....if a CEM has RoHS compliancy certificates from component vendors, is that "Due diligent enough" to absolve the CEM o
Electronics Forum | Fri Jan 13 05:12:52 EST 2006 | Rob
As long as you trust that the component vendor is honest & diligent (possibly add this to your vendor rating criterea?) In the UK we have a 'RoHS Trusted' Kitemark from the British Standards institute that distributors can apply for to show this. I
Electronics Forum | Wed Jan 25 03:29:04 EST 2006 | Neil
I agree Rob, The main thing is that you don't beleive everything without question. If you're sure the supplier knows what he's doing and you have a good relationship with him then a declaration should be OK. When doubt arises it is worth getting sam
Electronics Forum | Mon Jan 30 06:29:51 EST 2006 | slaine
we shouldnt be talking about lead free we should be talking in terms of RoHS compliant. HMP solder is exempt in the directive even though it has a hig lead content (93.5%) as no other alloy will melt at the same temperatures 298. as HMP is exempt wi
Electronics Forum | Fri Jun 02 16:22:53 EDT 2006 | Randy
Do not believe every thing your suppliers tell you, even a written cert does not guaranty compliance. We recently purchased a Niton XRF analyzer. The first day in use we found component�s that were made for us "RoHS" that were far from compliant. Peo
Electronics Forum | Tue Apr 15 14:19:19 EDT 2014 | horchak
This does not look difficult. It appears the rectangle of proper size and spacing would work for both, or even a square pad. Don't make it more difficult than it should be. But then I could be missing something?
Electronics Forum | Tue Apr 15 16:07:18 EDT 2014 | rway
Rather than using an over-lay of both pads, I would just stay with a rectangle pad shape, a little wider to accommodate both footprints. Keep it simple.
Electronics Forum | Tue Apr 15 15:12:50 EDT 2014 | bradlevy
Thanks Bob. I just didn't have enough experience with production SMT (vs hand-soldered prototypes) to know how finicky some things like this are. I've tried to do a lot of reading, but I haven't seen much that talks about things like this. I also hav
Electronics Forum | Mon Apr 14 17:38:18 EDT 2014 | bradlevy
I've got a small smt board I've already got working prototypes of, which uses a tactile switch. I've got another much less expensive tact switch of similar size that I had avoided due to a difference in actuators I originally had no way around. Now I
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