Trace resistance calculator
The trace resistance of a microstrip is important in determining how much power it dissipates. By determining its trace resistance, the contribution of a microstrip to the overall circuit resistance can be evaluated. This tool is designed to calculate the resistance of a microstrip trace with a copper conductor. To use it, specify the trace dimensions and the ambient temperature.
Diagram
Formula
Where:
ρ=resistivity
L= length
W=trace width
T=trace height
For ρ and α there is a constant value
ρ = 1.7*10־6 Ω
α = 3.9*10־3 Ω
Example
Let’s calculate resistance by using trace resistance consider inputs Length (L)= 2-inch, Width(W)= 3mm, Trace height (T)= 2mm Temperature(T)= 30 deg.
By applying formula
