Amphenol V421-4D00-A7 Circular Connector Plug

Amphenol V421-4D00-A7 is a 21-pin circular connector plug from Amphenol, designed as the plug half of a mating pair in the V421 interconnect family. This plug houses a 21-position insert within a circular shell and is intended to mate with a corresponding V421 receptacle to form a compact, high-density connector interface. The V421-4D00-A7 designation identifies this specific plug configuration, enabling up to 21 conductors in a single circular connection and providing a straightforward path for harness routing in compact assemblies. As part of the V421 family, the plug is built to align with the standard interface geometry of compatible receptacles, supporting reliable mating and consistent orientation between halves. This interconnect solution simplifies field service and replacement by allowing the plug to be swapped with its mate without altering the surrounding harness, provided that the mating connector and insert arrangement remain compatible.