At 04:02 PM 1/23/2006, Brad Velander wrote: >The ones that get to me are usually relays, switches or other module >type devices. Tell us specifically if they are showing a bottom or >top view of the device in their package drawings. Too many don't >state and leave you guessing or connecting up a part just to make sure.
I remember once I needed to use a relay that I was buying through Digikey. Helpfully, the manufacturer had put a diagram label on the top of the part showing how the relay was wired internally, standard relay symbols. I could read this diagram, So I designed in the part. What I couldn't read, however, was the small print on that label that said "pin view". I can think of very little reason to use a pin view placed on top of the part. This was a DIP relay and if you wanted to probe the part you'd probe the pins on top. And from the bottom, of course, you can't read the label. Far too many data sheets have clearly been written by people with no experience actually using the information.... Gradually, though, I'm hoping, the existence of common library symbols/footprints/models may be finessing this problem. I've argued that we should organize as users to provide this for ourselves, since there is a clear common interest and it would not be at all difficult to do; users are already building parts and testing the symbols and footprints in actual use, there only needs to be a way to collect the information and coordinate validation of it. Fortunately, we now have wikis.... so this should actually be easy. http://protel-users.org needs work; essentially, I can start things, seed them now, I can't be the chief cook and bottlewasher. But many people putting in a little time can sometimes accomplish more than a few people putting in a lot of time.... ____________________________________________________________ You are subscribed to the PEDA discussion forum To Post messages: mailto:[email protected] Unsubscribe and Other Options: http://techservinc.com/mailman/listinfo/peda_techservinc.com Browse or Search Old Archives (2001-2004): http://www.mail-archive.com/[email protected] Browse or Search Current Archives (2004-Current): http://www.mail-archive.com/[email protected]
