The Amphenol PT series and PT-SE series connectors, conforming to MIL-DTL-26482 Series I standards, feature high-density contact arrangements within a circular shell. The PT series provides solder contacts, while PT-SE offers high-performance crimp contacts, and PT-CE caters to commercial crimping. These circular connectors utilize a quick-disconnect bayonet coupling for fast mating and un-mating, with a variety of mounting styles and shell sizes available.