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 offers solder contacts, while PT-SE provides high-performance crimp contacts, and PT-CE offers a commercial crimp option. These circular connectors utilize a quick-disconnect bayonet coupling mechanism for rapid mating and unmating, and they are available in various mounting styles and shell sizes.