The TE Connectivity 1-1746741-3 is a 3-position, single-row IDC socket from the RITS series. It terminates discrete 20-26 AWG wire directly — no crimp tool needed, the insulation is displaced by the contact tines as the cover is pressed down. The 2.00 mm pitch keeps the board footprint compact, and the gold finish on the female sockets (8.00µin / 0.203µm) is specified for signal-level circuits where stable contact resistance over repeated mates matters more than raw ampacity. Free-hanging, in-line mounting suits harness assemblies that route to a board header or another in-line splice.
Wire Gauge and Termination — What the IDC Means on the Bench
The IDC termination accepts 20-26 AWG discrete wire. That range covers common signal and low-power wiring in control cabinets, sensor harnesses, and internal device looms. Because the IDC slot is sized for the full insulation diameter, stripping is unnecessary — the tines pierce the jacket and make contact with the conductor in one operation. The trade-off is that re-termination is not practical; once the cover is pressed, the wire is committed. For field repairs, plan to cut and re-terminate with a new socket.
Mating Half and Compatibility
This socket mates with a 2.00 mm pitch header from the RITS series — typically a through-hole or surface-mount pin header with 3 positions in a single row. The gold-on-gold contact interface (socket gold, header gold) keeps the connection reliable in low-voltage signal paths. No locking latch is listed on the spec, so for vibration-prone environments, consider a secondary retention method like a wire tie or a housing with an integrated lock if the application demands it.