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Subject:	Re: Hole Size Recommendations
From:	Donald Kyle <[log in to unmask]>
Reply To:	TechNet E-Mail Forum <[log in to unmask]>, Donald Kyle <[log in to unmask]>
Date:	Thu, 28 Apr 2005 08:40:07 -0500
Content-Type:	text/plain
Parts/Attachments:	text/plain (52 lines)

Look in IPC-2222 section 9.2.2 Plated-Through Holes
and in IPC-2221 section 9.0 Holes/Interconnections.



At 08:31 AM 4/28/2005, you wrote:
>All right...I know this has been asked before (I may have even been the
>one to ask at least once), but....
>In what specification can I find recommendations for lead to hole ratios
>or something that gives guidance to designers when specifying hole size
>for soldered TH parts?  I thought it was IPC-2221A, but, I can't find
>it.  I've only had one cup of coffee so far...should I get a second?
>
>-Carrie
>
>
>
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Donald Kyle C.I.D.+
281-285-7528 voice
281-285-8593 fax
[log in to unmask]
Schlumberger
Sugar Land Product Center (SPC)
Mail Drop MD155-1
155 Industrial Boulevard
Sugar Land, Texas 77478

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