Crossbar Contacts
Although crossbar contacts use expensive precious metals, economic pricing has been achieved by reducing the amounts of these metals used. For easier welding to spring materials of copper alloys, contacts adopt precious metals laminated to phosphor bronze or Cu-Ni alloy. An example of production methods is shown below.
Production process of crossbar contacts
Examples of typical shapes of the contacts produced like the above are shown below. Triple-layer contacts are made by laminating Au alloys to the second layer of Pd and Pd alloys, and Ag and Ag alloys. Triple-layer contacts are mainly used to stabilize contact resistance in the region of micro current load.
Examples of typical shapes
