The PHOENIX CONTACT part 1777109 is a PCB header designed for reliable electrical connections. It features a nominal current of 12 A and a rated voltage (III/2) of 320 V, making it suitable for a variety of applications. The nominal cross-section is 2.5 mm², with 5 positions and a pitch of 5.08 mm. The headers are colored green and have a contact surface coated with tin for improved conductivity. They are designed for wave soldering mounting and have a linear pinning layout with solder pins measuring 3.9 mm in length.