The TE MTA-156 3-643817-3 is a 3-position IDC receptacle from the MTA-156 series, designed for discrete or ribbon cable termination. The orange housing is a visual identifier on the harness, useful for tracing circuits in a panel. This connector is the wire-mounted half of a wire-to-board interconnect, commonly used in appliance, HVAC, and industrial control harnesses where fast IDC termination is needed.
Termination and Wire Handling
Cable termination is IDC — insulation displacement — so no wire stripping is needed. The receptacle accepts 18 AWG discrete or ribbon cable.