Skip to content

With this technology, components are not soldered to the PCB, but pressed into the metallized holes, enabling solder-free assembly. The electrical and mechanical connection depends on exact compliance with the tolerances specified by the component manufacturer. Different mechanical versions of the press-fit pins (elastic or solid) are available depending on the manufacturer.

The following information is required with the PCB data in order to be able to produce the holes for the press-fit components correctly:

  • Clear labeling of the
    drill holes for press-fit technology
  • diameter of the base hole,
    without copper with tolerance specification
  • Final diameter incl.
    Metallization with tolerance
  • Copper coating in the sleeve
  • Coating thickness of the sleeve surface

This information can be found in the manufacturer’s data sheet for the relevant components.

For combinations of press-fit connectors and SMD components
sufficient distance must be ensured to enable mechanical relining. SMD components react partially
very critical to mechanical loads. The insertion forces of the press-fit connections must not generate any significant bending forces on the PCB.

Example figures

Specification Example value
End hole+tolerance 0,85mm +0,10/-0,05mm
Base hole+tolerance 1,00mm ±0,025mm
Cu layer in drill hole min. 25µm
Surface ENIG
Click to access the login or register cheese