Silver in Electrical Contacts
Why silver and silver alloys are widely used in switches, relays, contactors and connectors.
What this topic covers
Why silver and silver alloys are widely used in switches, relays, contactors and connectors.
Core material ideas
Electrical contacts need low resistance where two conductive surfaces meet.
Contact materials must also tolerate arcing, wear, contamination and repeated operation.
Silver alloys can improve mechanical or arc-resistance properties while preserving useful conductivity.
Design tradeoffs
Conductive pastes, inks and adhesives create particle networks whose properties depend on manufacturing as well as silver content.
Performance and evidence
Contact reliability depends on wear, contamination, tarnish, mechanical force and environment.
Lifecycle perspective
Live electrical work and manufacturing recipes are outside this site's scope.