With this technology, components are not soldered to the PCBauch: gedruckte Schaltung, engl.: PCB – Printed circuit boar… More, 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 PCBauch: gedruckte Schaltung, engl.: PCB – Printed circuit boar… More 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 PCBauch: gedruckte Schaltung, engl.: PCB – Printed circuit boar… More.
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 |