Gold Tips

Gold tips or fingers, usually refer to the terminals on a card-edge connector of a PCB.

The application of gold fingers  to an edge connector provides an ideal surface finish for high-wear applications, such as an insertion connector. This is partly due to the fact that hardened gold provides a very planar surface that is resistant to wear from repeated insertions. For the manufacture of printed circuit boards, a bright hard gold with a mixture of nickel and/or cobalt is often used for card edge connector fingers plated over a nickel underlayment.

  • Gold can be ordered in conjunction with all the other surface finishes available from Sunstone Circuits.
  • To aid in the insertion of parts you can request a bevel to be added to the edge.  Sunstone offers a variety of choices.  Online select from 15º, 30º or 45º