Hello-

Regarding my original response, I apologize. I've been working metric /
thinking imperial too long. I was reading as 0.64MM and 0.89MM, which is
.025 and .035, which is a good hole for the lead, but not relevant to you
at all.

Sorry,
-Chris



> 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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