Precious-metal-alloy contacts

A contact for a connector, the contact comprising:

• a substrate;
• a plurality of plating layers plated over the substrate;
• and
• a protective layer over the plurality of plating layers, the protective layer over a first section of the contact and comprising impurities suspended in a base material, wherein the impurities increase an effective corrosion path length through the protective layer from a top surface of the protective layer to a top surface of the plurality of plating layers.

A contact for a connector, the contact comprising:

• a substrate;
• a first plurality of plating layers over the substrate, the first plurality of plating layers comprising rhodium-ruthenium;
• and
• a second plurality of plating layers over first plurality of layers, the second plurality of plating layers comprising rhodium-ruthenium.