4-Position IDC Receptacle on 0.100" Pitch
The TE Connectivity MTA-100 3-640470-4 is a 4-position IDC receptacle that terminates 26 AWG discrete or ribbon cable without stripping or crimping. The housing is blue — TE uses color coding by circuit count in the MTA-100 line, and blue marks this as the 4-position member. Contacts are tin-plated at 80.0 µ" (2.03 µm) — a heavy tin layer that handles the single-termination, low-mating-cycle duty of an IDC connection well.
IDC Termination — Wire Gauge and Tooling
The fork contact displaces the insulation as the cover is pressed down, forming a gas-tight joint. The receptacle accepts discrete wires or ribbon cable. The closed-end feature means the housing is solid at the back — no daisy-chain pass-through, so the cable terminates at this connector.
This receptacle mates with any standard MTA-100 0.100" pitch pin header. For a 4-position application, the 3-640470-4 mates with the 4-position MTA-100 header (e.g., TE 640445-4 or similar). The single-row, 4-circuit count matches the BOM line for a 4-wire harness.