The small size of the UY2 connector reduces the splicing bundle O.D. to a minimum. Scotchlok UY2 connectors are a butt-type connector that employs a specially designed insulation displacement contact (IDC). The contact, which is formed in a U shape, makes a double electrical connection to each wire. The Scotchlok UY2 IDC connector will accommodate any combination of two 19 to 26 AWG (0.9 to 0.4 mm) copper wires from either filled or unfilled plastic insulated cable. The wires joined can be different wire gauges. Includes a factory inserted sealant that insulates the connections, protects against corrosion, and seals out moisture.