The Amphenol PT series connectors, including the PT-SE series, are high-density circular connectors compliant with MIL-DTL-26482 Series I. They feature a quick-disconnect bayonet coupling for fast mating and un-mating. The PT series offers solder contacts, while the PT-SE series provides high-performance crimp contacts. These connectors are available in various mounting styles and shell sizes, suitable for a range of industrial and military applications.