Quick Answer
Calculate PCB via resistance
Calculator
Result Interpretation
The result shows Via resistance in ohm, computed directly from the entered inputs using the formula defined for this tool.
Worked Example
Verified calculation
Given:
- resistivity = 1.68E-8
- via_length = 0.0016
- via_diameter = 0.0003
- plating_thickness = 2.5E-5
Expected Result:
- via_resistance = 0.001141
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.
Formula / Method
via_resistance = resistivity * via_length / (pi * via_diameter * plating_thickness)Formula family: formula_pcb_via_resistance
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| resistivity | Resistivity | INPUT | Resistivity |
| via_length | Via length | INPUT | Via length |
| via_diameter | Via diameter | INPUT | Via diameter |
| plating_thickness | Plating thickness | INPUT | Plating thickness |
| via_resistance | Via resistance | OUTPUT | Via resistance |
Calculation Steps
- Enter the resistivity in ohm*m.
- Enter the via length in m.
- Enter the via diameter in m.
- Enter the plating thickness in m.
- Step 1: Compute via resistance.
- Read the via resistance (ohm) from the results.
Engineering Summary
Calculate PCB via resistance The calculation uses Direct formula — via_resistance = resistivity * via_length / (pi * via_diameter * plating_thickness). This tool is applicable in pcb.toolfusion.net.
Frequently Asked Questions
What does this calculator calculate?
The PCB via resistance calculator estimates Via resistance based on the input parameters you provide
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Resistivity (ohm*m), Via length (m), Via diameter (m), Plating thickness (m). Make sure all inputs use the specified units for consistent results
How does Resistivity affect the results?
The resistivity directly affects: Via resistance. Increasing or decreasing this value will change these output values according to the engineering formula
How should I interpret the calculated results?
The calculator provides the following outputs: via resistance in ohm. Results are computed from the input values using the defined calculation method. Always verify results against project-specific requirements and applicable standards
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas; the calculation method is based on Direct formula via_resistance = resistivity * via_length / (pi * via_diameter * plating_thickness). Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
When is this calculation useful?
The PCB via resistance calculator is useful during preliminary design, feasibility studies, and quick engineering checks in pcb.toolfusion.net projects. It helps engineers and designers estimate key parameters before proceeding with detailed analysis
Related Tools
Browse More Tools
Explore the full index of engineering calculators on this vertical site.