描述：The PT02YS8-4S-023 from Amphenol is PT series, MIL-DTL-26482 series I equivalent box mount receptacle with 4 contacts. The PT series miniature cylindrical connectors offer high density contact arrangements in a circular shell with salt spray exposure of 48hour, 500hour. These connectors have 5 key/keyway polarization with 3 point bayonet lock coupling for positive mating with no chance of cross plugging. Spring tension provided by a wave washer in the coupling nut ensures maintenance of interfacial seal between mating halves. Both the insert and main joint gasket are moulded from resilient neoprene insulator. These connectors are designed for harsh environments and have well-proven electrical capability to withstand extreme shock, exposure and vibration. The high reliability performance makes PT series connectors ideal for environmental sealing or pressurized applications. . Quick disconnect bayonet coupling for rapid mating and unmating . Intermateable, intermountable and interchangeable with all MIL-DTL-26482 connectors . 500 mating cycles . Operating temperature range from -55°C to +125°C . Insulation resistance is 5000Mohm at 25?C . Aluminium alloy body material with electroless nickel plating . Copper alloy PCB socket contacts with gold plating