However, things like guide pins may require pads rather than vias in order to be non plated (the fact of being unplated provides a sorting method, though).
There's also issues with connectors such as AMP's Mictor series (such as are used for Agilent logic analyser pod connections) which have through-hole (plated) ground pins - which can be press-fit so don't necessarily need soldering - as well as SMT pads for signal pins. Unless one dedicates a library field to identifying what class a component falls into, I agree that the only practical alternative would be to auto-sort the unambiguous components and provide a list of the rest for the designer to parse. John Haddy Sydney, Australia > -----Original Message----- > From: Abd ul-Rahman Lomax [mailto:[EMAIL PROTECTED] > Sent: Thursday, 20 November 2003 8:45 AM > To: Protel EDA Forum > Subject: Re: [PEDA] Utility to count SMD/Through-hole components > > > At 07:09 PM 11/18/2003, Abd ul-Rahman Lomax wrote: > >It is rare, however, that a surface mount component would have any > >through-hole pads associated with it. Vias, yes, maybe, > pads, no. (Of > >course, Protel treats vias and pads somewhat > interchangeably, but one > >could ordinarily choose to use vias in an SMT footprint. > I'll ignore the > >possible complication. > > Just to be more clear about this, as another writer mentioned, an SMT > component might have, for example, a through hole for a guide > pin. If that > through hole is implemented with a "via," instead of a "pad", > it would not > cause ambiguity. > > However, another, perhaps more practical and safer > alternative would be to > generate three lists: SMT, through-hole, and possibly mixed. > The large > majority of components would orginarily not be ambiguous. > > > > > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
