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    Plated-through hole

    Frequently abbreviated as PTH, it denotes a borehole in an insulating base material. The inner wall of the hole is coated with copper or a double layer of copper and solder to form a conductive connection between the outer and inner circuits. Ideally, the electroplated coating is 25-35 µm thick. Simultaneously, the PTH fulfills the purpose of the holder for the push-through installation.