The Amphenol PT series connectors, including the PT-SE variant, are circular connectors conforming to MIL-DTL-26482 Series I standards. They feature high-density contact arrangements within a durable shell. The PT series offers solder contacts, while the PT-SE provides high-performance crimp contacts, and the PT-CE offers a commercial crimp option. These connectors facilitate quick-disconnect bayonet coupling for easy mating and un-mating, with multiple mounting styles and shell sizes available.