How to Use Non-Plated Through Hole Boards

NPTH boards refer to PCBs where the holes do not have a copper plating layer. This is in stark contrast to traditional plated through-hole (PTH) boards, where the internal walls of the through-holes are plated with copper for electrical connection between circuits on different layers. NPTH boards do not have this functionality.

: The through-holes on NPTH boards are non-conductive, ensuring electrical isolation between different layers. This is particularly important for circuit designs that require signal isolation.

: On NPTH boards, the through-holes are non-conductive, making them ideal for circuits that require strict electrical isolation, such as high-voltage and high-frequency circuits.

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When designing circuits, clearly identify which through-holes need to be conductive and which need electrical isolation. For through-holes requiring electrical isolation, clearly indicate them as NPTH in the design drawings.

Considering the heat dissipation advantages of NPTH boards, the position and number of through-holes can be reasonably designed to improve the circuit's heat dissipation performance.

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During the PCB manufacturing process, ensure that the production process of NPTH boards meets design requirements. This includes drilling, deburring, cleaning, and other steps to ensure the quality of through-holes.

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During product use, regularly check the status of NPTH boards to ensure that there is no accumulation of impurities such as dust and moisture in the through-holes, which may affect the electrical performance and heat dissipation performance of the circuit.

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