The Amphenol PT series and PT-SE series connectors, based on MIL-DTL-26482 Series I standards, feature high-density contact arrangements within a circular shell. The PT series provides solder contacts, while the PT-SE offers high-performance crimp contacts, and the PT-CE is available with a commercial crimp option. These circular connectors facilitate quick-disconnect bayonet coupling for easy mating and unmating, and they come in various mounting styles and shell sizes.