The Amphenol PT Series and PT-SE Series connectors (MIL-DTL-26482 Series I) feature high-density contact arrangements in a circular shell. The PT series provides solder contacts, while the PT-SE offers high-performance crimp contacts, and the PT-CE features a commercial crimp option. These connectors utilize a quick-disconnect bayonet coupling mechanism for fast mating and unpairing, and are available in various mounting styles and shell sizes.