Pierre,

Minimal copper plating in a PTH is 20 to 25 micron. Use this to compute
the current carrying capacity by considering an equivalent trace of which
the width equals the circumference.  You will find that most PTH's can
carry much more current than the traces that are connected to them.

Regards,

Peter Willaert
Agfa-Gevaert
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 Are there any guidelines on current carrying capacity for plated
through holes? The only references I've come across deal only with
traces on inner or outer layers. If there are any, do they provide
guidance on the connection to the hole (solid plane, isothermal, single
track)?

 Thanks,
 Pierre Audette


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