Hi Scott-

Check out IPC-CM-770. Or (better idea), try to get the manuals for the 
insertion equipment to be used, if any.

Hole sizing is somewhat dependent on insertion method (hand vs. machine).
Keepout areas/courtyard is very dependent on insertion equipment to be 
used. Watch out for clinch/cut on bottom side.
Lead span for axial parts... see above...
Component orientations very restricted by combination of equipment and 
tape-and-reel orientation for radial (stand-up) parts.

Feel like you're working with a stone tablet and a chisel?

Best Regards,
-Chris




Scott Riley <[log in to unmask]> 
Sent by: DesignerCouncil <[log in to unmask]>
03/12/2008 06:45 AM
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Subject
[DC] Through-hole component standards






I'm working on a large power board that uses all through-hole parts..lots 
of
them.  Is there anything for through-hole parts that would be similar to
IP-7351 ?  I've searched the IPC standards and PCB Libraries site and
others, but haven't found much for through-components. 

 

I'm using the data sheets, but for the most part they don't have anything
regarding the recommended PCB hole sizes or mechanical/electrical 
clearances
(courtyard). Can anyone point me someplace where I might be able to find
some additional information ? 

 

Scott D. Riley
Technical Design Service
607-658-9322 - Office
607-785-1696 - FAX
 <http://www.techdesignservice.com> www.techdesignservice.com

 

 

 


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