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August 2006

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Subject:
Hole diameter specification
From:
"Tempea, Ioan" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Tempea, Ioan
Date:
Mon, 28 Aug 2006 09:19:11 -0400
Content-Type:
text/plain
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text/plain (20 lines) 
Hi,

I have a TH cap that has 0.064" diameter pins and 0.089" diameter holes. Are the holes properly designed?

I have skimmed IPC-2221 and IPC-D-279, but cannot find any formula for calculating the diameter of the hole from the pin diameter. Where can I find such formula?

Thanks,

Ioan

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