Appropriate Pad Hole Size for Through-hole Lead Diameter

What pad hole size is appropriate for a given through-hole lead diameter?

7/9/2016 10:37:28 PM

pcb design through-hole

When I am making some new through-hole parts in Eagle, I've realized that the drill size needs to be a little larger than the lead diameter, but I'm not sure how much larger it should be?

yesyes

12/10/2016 2:57:49 AM

The 7 to 15 mil oversize suggested by others seems good to me.

European BizSolutions SLNEU

11/27/2016 9:08:25 PM

For most through-hole parts, I specify .035" finished hole size. This is suitable for DIP ICs, 1/4 watt resistors, small transistor and capacitors.

Mario

10/6/2016 5:32:29 PM

You need the pin or wire to be able to fit thru the hole, tighter is better.

What pad hole size is appropriate for a given through-hole lead diameter?

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