What Is the 3-640469-3?
The TE Connectivity MTA-100 3-640469-3 is a 3-position IDC receptacle, part of the MTA-100 series. It terminates 24 AWG discrete or ribbon cable without stripping or crimping — the insulation-displacement contacts pierce the wire jacket in one press operation. The 0.100" (2.54mm) pitch matches standard MTA-100 headers and common ribbon cable spacing.
The IDC termination accepts 24 AWG solid or stranded wire; a simple hand press or arbor press seats the wire into the slot. The right-angle wire exit allows the cable to run parallel to the board surface, useful in tight enclosures. The closed-end feature means the housing has a solid back wall, preventing wire push-through.