The Amphenol PT series and PT-SE series connectors are high-density circular connectors based on MIL-DTL-26482 Series I specifications. They feature a quick-disconnect bayonet coupling for fast mating and unmating. The PT series includes solder contacts, while the PT-SE offers high-performance crimp contacts, and the PT-CE provides a commercial crimp option. These connectors come in various mounting styles and shell sizes, suitable for a wide range of applications.