The Amphenol RF 202115 is a BNC shorting cap — an accessory that terminates an unused BNC jack to maintain a controlled impedance environment and prevent dust ingress. It carries a gold-plated brass center contact and a nickel-plated brass body, finished in silver. The integral chain lets you tether the cap to the panel or cable assembly so it doesn't wander off when the port is in use.
Compatibility and Application
This cap mates with standard BNC jacks — the interface conforms to the BNC bayonet-lock geometry, so it fits any BNC female connector that follows the industry-standard interface.