The TE Connectivity 1379671-1 is a 40-position plug housing from the.025 series, designed for wire-to-wire interconnects where a dense, two-row layout is needed. The 2.20 mm pitch keeps the wire bundle compact — useful where harness routing space is tight.
The contacts are not in the bag — the 1379671-1 is a bare housing, so add the correct TE socket terminal to your BOM. Without the secondary lock on the plug housing, the splice relies on the terminal retention tines and the friction of the mate — for high-vibration applications, verify the terminal pull-out force against your duty cycle.
The 1-2333134-5 is a 30-position receptacle housing at 2.00 mm pitch — tighter pitch, fewer circuits, and it uses a locking ramp instead of the friction-only mate of the 1379671-1. If your design needs a positive lock and can drop to 30 positions, the 1-2333134-5 is the better choice. For a full 40-circuit harness at 2.20 mm spacing, the 1379671-1 is the correct plug half.