20 Ga. Wire

[Ivan]

Hello everyone,

I have to make jumper pads for 20 Ga wire jumpers. The spec for the
wire is 32 mils ( .812mm). Should I just go one size larger (18 Ga..
40 mil) or larger?


I appreciate everyone's advice.



Ivan

 

[Robert Baer]

Ivan wrote:

Hello everyone,

I have to make jumper pads for 20 Ga wire jumpers. The spec for the
wire is 32 mils ( .812mm). Should I just go one size larger (18 Ga..
40 mil) or larger?

I appreciate everyone's advice.

Ivan

Always leave at least 5 mils minimum of "slop"; 2 mils for hole
tolerance and 3 mils for easy insertion (or removal if rework is
needed).
40 mils is fine.

 

[Ivan]

Robert-

Thank you!



On Thu, 24 Feb 2005 09:23:54 GMT, Robert Baer <bobbaer@earthlink.net>
wrote:

Ivan wrote:

Hello everyone,

I have to make jumper pads for 20 Ga wire jumpers. The spec for the
wire is 32 mils ( .812mm). Should I just go one size larger (18 Ga..
40 mil) or larger?

I appreciate everyone's advice.

Ivan

Always leave at least 5 mils minimum of "slop"; 2 mils for hole
tolerance and 3 mils for easy insertion (or removal if rework is
needed).
40 mils is fine.

 

[Chuck Harris]

As a rule of thumb, I just up the diameter from 25% to 50%...
With 50% being used on small wires, and 25% on large wires.

Don't just add a fixed amount of oversize because on larger wires
you will find they are too tight to rework, and smaller wires
the parts are too loose.

-Chuck


Ivan wrote:

Hello everyone,

I have to make jumper pads for 20 Ga wire jumpers. The spec for the
wire is 32 mils ( .812mm). Should I just go one size larger (18 Ga..
40 mil) or larger?


I appreciate everyone's advice.



Ivan