Silver-Nickel Contact Material

for Superior Conductivity

Contact Tip
Silver-Nickel Contact Tip
(85% Ag and 15% Ni)

Contact Closeup

Contact sideview
Close-up of Silver-Nickel Contact Tip

We use solid silver-nickel contact surfaces on almost all of our plugs and receptacles. The contacts’ 85% silver and 15% nickel composition combines the durability of nickel with the excellent conducting properties of silver.

Silver-nickel contacts provide significant advantages over the brass materials used on most other types of plugs and receptacles:

  • Silver-nickel maintains its low contact resistance and superior electrical properties even after oxidation and tarnishing.

  • Silver-nickel withstands arcing very well and only welds at extremely high pressure and temperature.

  • Thanks to the influence of the nickel, silver-nickel provides excellent wear resistance.

  • Silver-nickel performs well in and withstands wet and corrosive environments.

The combination of the silver-nickel material with spring-loaded butt-style design makes the contacts ideal for repetitive making and breaking of connections under load.

Limitations of Brass as a Contact Material

Resistance Chart

Brass contacts

  • Brass is not arc resistant, so it is not suitable for repeated making and breaking under load.

  • Brass is a soft material and wears rapidly, degrading the operational characteristics of the contact.

  • Brass oxidizes easily and thus does not perform well in wet or corrosive environments.
  • Brass's contact resistance increases rapidly due to tarnishing that occurs in normal use.