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IPC 2141 Trace Impedance Calculator

The IPC-2141 trace Impedance calculator will help make initial design easier by allowing the user to input basic parameters and get a calculated impedance according to the IPC-2141 standard. While this calculator will provide a baseline, any final design considerations should be made towards loss, dispersion, copper roughness, phase shift, etc. A field solver may be required for final circuit analysis.

Trace Type

Microstrip
Embedded Microstrip
Edge Coupled Microstrip
Stripline
Asymmetric Stripline
Broadside Coupled Stripline
Edge Coupled Stripline
Solve For
DkRed PCB builder
TRACE WIDTH (w)
TRACE THICKNESS (t)
HEIGHT (h)
DIELECTRIC CONSTANT (εr)
TARGET IMPEDANCE (Zo)
Ω
Warning - (w/h) only valid from 0.1 to 2.0 Warning - trace thickness t is invalid! Warning - substrate height h is invalid! Warning - trace width w is invalid! Warning - dielectric constant εr is invalid! Warning - invalid values!
TARGET IMPEDANCE (Zo)
Ω
TRACE THICKNESS (t)
HEIGHT (h)
DIELECTRIC CONSTANT (εr)
TRACE WIDTH (w)
Warning - (w/h) only valid from 0.1 to 2.0 Warning - trace thickness t is invalid! Warning - substrate height h is invalid! Warning - impedance Zo is invalid! Warning - dielectric constant εr is invalid! Warning - invalid values!
TRACE THICKNESS (t)
SUBSTRATE HEIGHT (h)
TRACE HEIGHT ABOVE PLANE (hp)
TRACE WIDTH (w)
DIELECTRIC CONSTANT (εr)
TARGET IMPEDANCE (Zo)
Ω
Warning - only valid for (h/hp) > 1.2 Warning - trace thickness t is invalid! Warning - substrate height h is invalid! Warning - trace height hp is invalid! Warning - trace width w is invalid! Warning - dielectric constant εr is invalid! Warning - invalid values!
DkRed PCB builder
Solve For
DkRed PCB builder
TRACE THICKNESS (t)
HEIGHT (h)
TRACE WIDTH (w)
TRACE SPACING (s)
DIELECTRIC CONSTANT (εr)
DIFFERENTIAL IMPEDANCE (Zd)
Ω
Warning - (w/h) only valid from 0.1 to 2.0 Warning - trace thickness t is invalid! Warning - substrate height h is invalid! Warning - trace width w is invalid! Warning - trace spacing s is invalid! Warning - dielectric constant εr is invalid! Warning - invalid values!
DIFFERENTIAL IMPEDANCE (Zd)
Ω
TRACE THICKNESS (t)
HEIGHT (h)
TRACE SPACING (s)
DIELECTRIC CONSTANT (εr)
TRACE WIDTH (w)
Warning - (w/h) only valid from 0.1 to 2.0 Warning - trace thickness t is invalid! Warning - impedance Zd is invalid! Warning - substrate height h is invalid! Warning - trace spacing s is invalid! Warning - dielectric constant εr is invalid! Warning - invalid values!
TRACE THICKNESS (t)
HEIGHT (h)
TRACE WIDTH (w)
DIELECTRIC CONSTANT (εr)
IMPEDANCE (Zo)
Ω
Warning - (t/h) only valid up to 0.25 Warning - (w/h) only valid from 0.1 to 2.0 Warning - trace thickness t is invalid! Warning - substrate height h is invalid! Warning - trace width w is invalid! Warning - dielectric constant εr is invalid! Warning - invalid values!
DkRed PCB builder
TRACE THICKNESS (t)
HEIGHT ABOVE TRACE (ha)
HEIGHT BELOW TRACE (hb)
TRACE WIDTH (w)
DIELECTRIC CONSTANT (εr)
IMPEDANCE (Zo)
Ω
Warning - (t/ha) only valid up to 0.25 Warning - (t/hb) only valid up to 0.25 Warning - (w/ha) only valid from 0.1 to 2.0 Warning - (w/hb) only valid from 0.1 to 2.0 Warning - trace thickness t is invalid! Warning - height above trace ha is invalid! Warning - height below trace hb is invalid! Warning - trace width w is invalid! Warning - dielectric constant εr is invalid! Warning - invalid values!
DkRed PCB builder
TRACE THICKNESS (t)
HEIGHT TO PLANE (hp)
HEIGHT BETWEEN TRACEs (ht)
TRACE WIDTH (w)
DIELECTRIC CONSTANT (εr)
IMPEDANCE (Zo)
Ω
Warning - (t/hp) only valid up to 0.25 Warning - (w/hp) only valid from 0.1 to 2.0 Warning - trace thickness t is invalid! Warning - height to plane hp is invalid! Warning - height between traces ht is invalid! Warning - trace width w is invalid! Warning - dielectric constant εr is invalid! Warning - invalid values!
DkRed PCB builder
TRACE THICKNESS (t)
HEIGHT (h)
TRACE WIDTH (w)
TRACE SPACING (s)
DIELECTRIC CONSTANT (εr)
IMPEDANCE (Zd)
Ω
Warning - (w/h) only valid from 0.1 to 2.0 Warning - trace thickness t is invalid! Warning - substrate height h is invalid! Warning - trace width w is invalid! Warning - dielectric constant εr is invalid! Warning - invalid values!
DkRed PCB builder
0.041982s