Via (electronics)

A via or VIA is an electrical connection between layers in a circuit board.

Via (electronics) Media

• 

  Different types of vias: (1) Through hole. (2) Blind via. (3) Buried via.The gray and green layers are nonconducting, while the thin orange layers and red vias are conductive.

• 

  PCB via current capacity chart showing 1 mil plating via current capacity & resistance versus diameter on a 1.6 mm PCB.