The TE Connectivity 2-173977-3 is a 3-position receptacle from the CT series, designed for discrete wire IDC termination at a 0.079" (2.00mm) pitch. It accepts 26-28 AWG wire directly — no separate crimp terminal needed — making it a clean, low-part-count interconnect for small-gauge signal or low-power circuits. The tin-plated female sockets and blue housing are common in internal appliance wiring, control panels, and sensor harnesses where repeated reconnection is infrequent.
IDC Termination and Wire Gauge — What Fits
The IDC termination pierces the insulation and contacts the conductor in one operation — no stripping, no crimp. The 26-28 AWG range is tight, so confirm your wire diameter against the slot geometry before committing the BOM.