TE Connectivity 2.5mm Pin and Socket ContactsA series of circular connector contacts for the TE Connectivity 2.5 mm circular connectors. These circular connector contacts are made from tin plated copper alloy and are available in various wire sizes. For a correct system, the contacts must be used with appropriate wire seals. Except stock number 909-8122 pin contact, used for unsealed systemStock number 909-8116 17-13AWG uses wire seal 395-7606Stock number 909-8110 20-17AWG uses wire seal 395-7448TE Connectivity Plastic Circular