A little more info - we have an 8 amp circuit which is going through two 15 mil vias with 1 ounce copper on the wall thickness. The board is 0.062" FR-4 with 2 oz. copper. Is this enough? Thanks, Steve >>> Doug McKean <[log in to unmask]> 06/25/96 03:25pm >>> Steve Murphy wrote: > > Is there an IPC spec, or otherwise, that provides some guideline on the > current capacity of vias on PCBs, based on hole size, wall thickness, > etc? Any thoughts are appreciated. > > Steve Murphy > TRW Automotive Steve, How much current is there in this design? Doug