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karimoviç , 06-07-2020, 07:05 AM

Hello , if i have a pcb with juste 2 layers , what's the best diametre of vias and why ??

FurkanDursun , 06-08-2020, 02:32 AM

You can use as default 0.6 mm for diameter and 0.3 mm hole size. If you want to learn more about vias you must look at welldoneblog.

E.G: https://welldoneblog.fedevel.com/202...ions-and-more/
https://welldoneblog.fedevel.com/201...in-pcb-layout/

robertferanec , 06-08-2020, 07:19 AM

I would add also this: How to design cheaper PCB? What the parameters on PCB manufacturer website mean? https://youtu.be/NyVjg6-wfvY

Basically, you take minimum recommended cheap hole (usually 0.3mm) and minimum recommended cheap track width (often 0.15mm), that will make minimum recommended cheap VIA 0.3mm hole and 0.6mm pad size (calculated like: 0.15 ring on one side + 0.3 hole + 0.15 ring on other side of VIA).