Calculation of current carrying capacity

Managing high currents safely

Installation spaces are getting smaller, currents higher. The aim is to continuously increase the performance of the assembly. With our individual, software-based calculation, we provide you with targeted support to optimize the current carrying capacity of your PCB. Together we will find the right technology for your application and avoid critical limit ranges. The aim is to manage the current flow optimally from A to B.

We take the following points into account for the calculations:

The result: a reliable, stable performer.

Current carrying capacity PCB

Influencing factor layer structure on the current carrying capacity

High current calculator

The dimensioning of conductor tracks is subject to a set of standard rules. Therefore, use our practical high-current calculator for your initial calculations. This tool offers you a quick and easy way to calculate the required conductor width for high-current conductors on an FR4 circuit board. Please enter the following values:

°C
°C
A

The result provides the recommended width for a single high-current conductor for different PCB technologies. different PCB technologies.*

Heat spread within the FR4 printed circuit board 160 mm x 100 mm x 1.6 mm
None Low Good Very good
Fig. none Fig. low Fig. good Fig. very good
Copper end thickness Recommended conductor width
500 µm
HSMtec®
mm
mm
mm
mm
400 µm
Thick copper
mm
mm
mm
mm
210 µm
Thick copper
mm
mm
mm
mm
105 µm
Multilayer
mm
mm
mm
mm
70 µm
Multilayer
mm
mm
mm
mm

*Calculation provides a guide value based on a test layout 160 mm x 100 mm; thickness 1.6 mm; base material PCB FR4 (λ = 0.25 W/mK); no convection (λ = 0.025 W/mK); room temperature 20 ⁰C.

We would be happy to create a customized solution concept for your high-current application.

KSG technical support staff at the computer

We look forward to hearing from you.

Do you have any questions or would you like technical advice? We are happy to support you in every phase of your project. Contact our team of experts.

The KSG Support Line

Use the direct line to the experienced PCB experts in our Technical Support department.

+49 3721 266-555

ts@ksg-pcb.com

Preview Digital Design Compass Banner

Digital Design Compass

The smart platform for fast and reliable PCB development.

We have bundled all the parameters for you in our Design Compass.