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| Reply To: | TechNet E-Mail Forum. |
| Date: | Wed, 18 Oct 2000 15:46:12 -0400 |
| Content-Type: | text/plain |
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1) Form, fit, function the part must not interfere with installation
function of the mounting hole.
2) and 3) must not violate minimum electrical clearances. These are found in
a table Appendix A from IPC-A-610 or IPC-2221. In an application with up to
15 Volts the assembly minimum spacing would be .13 mm. (bare board design
minimums would be .1 mm)
Let me know if you don't have the table or need more information.
Guy Ramsey
American Competitiveness Institute
Senior Lab Technician / Instructor
610 362-1200 ext. 107
-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Ken Patel
Sent: Wednesday, October 18, 2000 3:18 PM
To: [log in to unmask]
Subject: [TN] Urgent: Looking for minimum spacing ...
I am looking for the following answers. Any help...
1). min. distance between a surface mount LED pad and a non-plated mounting
hole.
2). min. distance between a surface mount LED pad and a plated mounting hole
(pad edge to annular ring edge)
3). min. distance between a plated mounting hole and a non-plated mounting
hole.
3). min. distance between 2 surface mount pads.
re,
ken patel
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