The Amphenol PT series and PT-SE series connectors (MIL-DTL-26482 Series I) are high-density circular connectors. The PT series features solder contacts, while the PT-SE series offers high-performance crimp contacts, and the PT-CE series provides a commercial crimp option. These connectors feature quick-disconnect bayonet coupling for fast mating and un-mating, along with multiple mounting styles and shell sizes to suit various applications.