The 0.156" (3.96mm) pitch matches the standard MTA-156 footprint, so the wire spacing lines up with the IDC slots without needing a separate crimp operation — the insulation is displaced as the cap is pressed down. The white closed-end housing keeps the wire entry side sealed off, which is handy when you're daisy-chaining connectors along a harness and don't want an open end collecting dust.
Key Specs for the Harness Builder
This plug accepts 24 AWG wire only — the IDC slot width is sized for that gauge, so don't try to stuff 26 AWG in there; the insulation won't displace cleanly and you'll get an intermittent connection. The free-hanging right-angle mount means the wire exits perpendicular to the mating face, useful when you're routing a harness along a panel edge and need the connector to sit flat against the board.
Being a male pin plug, this mates with any MTA-156 female socket receptacle — look for the matching 4-position receptacle housing with female blade contacts. The IDC termination is straightforward: lay the unstripped wire across the slot, press the cover down with a hand press or arbor press, and the slot edges cut through the insulation to make contact with the conductor. No wire stripping, no crimp die changeover. The closed-end feature means the wire entry is blocked on one side, so you only load wire from the open end — keeps the assembly oriented consistently.