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