Pcb Inductance Per Unit Length Calculator

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Posted by Dinesh on

This calculator calculates the characteristic impedance, capacitance per unit length, inductance per unit length using relative permittivity, height of dielectric, width of trace, trace thickness values.

Pcb Inductance Per Unit Length Calculation

mm
mm
mm
Ohm
F/m
H/m

Formula:

z = 87 / √(e + 1.41) × LN((5.98 x h) / (0.8 x w + t))
c = (2.64 x 10-11) x (e + 1.41) / (LN((5.98 x h) / (0.8 x w + t)))
l = c x z2

Where,


z = Characteristic Impedance
e = Relative Permittivity
h = Height of Dielectric
w = Width of Trace
t = Trace Thickness
c = Capacitance per unit length
l = Inductance per unit length

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