8-Position IDC Receptacle for MTA-156 Harnesses
The TE Connectivity 3-640429-8 is an 8-position receptacle in the MTA-156 series, terminated via IDC to 24 AWG discrete or ribbon cable. The 0.156" (3.96 mm) pitch matches the MTA-156 header footprint — the same spacing used across the series for board-to-wire interconnects in consumer appliances, HVAC controls, and lighting ballasts. The closed-end design prevents the cable from pushing past the IDC slots, so each conductor seats consistently against the tin-plated contact beams.
Tin Plating and Locking Ramp — Signal-Duty, Vibration-Resistant Mate
The 80.0 µ" (2.03 µm) tin contact finish is sized for signal-level current in moderate-cycle applications — think a few dozen matings over the product life, not daily reconnect. Tin works well here because the IDC termination wipes the conductor surface on insertion, and the locking ramp on the housing holds the pair together against vibration in a fan or pump harness. For higher mating-cycle counts, the gold-plated variants in the MTA-156 family are the better call.
Active Production — Sourced to Order
The 3-640429-8 carries an Active lifecycle status with ROHS3 compliance. No end-of-life notice or last-time-buy window is on record.