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Through-hole

What is a through-hole?

A through-hole is a plated hole that passes completely through a printed circuit board (PCB) from one side to the other. It serves as both a mounting point for electronic components with wire leads and an electrical connection between different layers of the PCB. Through-hole components are inserted into these holes and typically soldered on the opposite side, providing strong mechanical connections and reliable electrical contact for applications requiring durability.

Related Terms

Mounting Hole

A mounting hole is a precisely positioned hole in a printed circuit board (PCB) or electronic component designed to secure the board to an enclosure, chassis, or standoff using screws or other fasteners. These holes are typically plated or non-plated and are strategically placed to provide mechanical support without interfering with electrical circuits. Mounting holes ensure proper alignment, prevent board flexing, and protect components from mechanical stress during assembly and use.