Lub peev xwm nqa ntawm PCB nyob ntawm cov hauv qab no: kab dav, kab thickness (tooj liab thickness), tso cai rau kub nce.

Raws li peb txhua tus paub, qhov dav ntawm PCB kab, qhov muaj peev xwm nqa tam sim no ntau dua.

Piv txwv tias nyob rau hauv tib lub sijhawm, 10 MIL kab tuaj yeem tiv taus 1A, ntau npaum li cas tam sim no tuaj yeem 50MIL hlau tiv taus? Puas yog 5A?

Cov lus teb, tau kawg, yog tsis yog.Ua saib cov ntaub ntawv hauv qab no los ntawm cov tub ceev xwm thoob ntiaj teb:

Unit ntawm kab dav:Nti (1 nti = 2.54cm = 25.4mm)

Cov ntaub ntawv:MIL-STD-275 Printed Wiring rau Cov Khoom Siv Hluav Taws Xob