Pcb Calculator

Posted by Dinesh on

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

Pcb Calculation

mm
mm
mm
Ohm
F/m
s/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)))
p = (3.34 x 10-9) x √(0.475 x e + 0.67)
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
p = Effective propagation delay
l = Inductance per unit length