From: Ray Anderson ([email protected])
Date: Fri Dec 01 2000 - 10:22:17 PST
Not sure what you are trying to do, but if you go microstrip,
a 4 mil wide trace on a 250 mil thick FR4 substrate will give
you about 200 ohms impedance. (according to apsim RLGC)
> Anyone able to achieve 200 ohms on .250 thick board before? If not what is
> the closest achievable board impedance within reason?
> Sean Murray
> General Manager
> M&M Specialties, Inc.
> 1236 W. Southern Ave. #106
> Tempe, AZ 85282
> 1-800-892-8760 x105
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