Discrete-Wire IDC for Tight Board-Edge Runs
The 3-2106003-4: The 4.00 mm cable pitch matches the board-side pitch, so the wire spacing stays consistent through the connector. The closed-end design prevents wire push-through past the contact zone.
Wiring and Termination Fit
The right-angle SMD footprint places solder pads on one side of the board.
The IDC receptacle slides over the header pins; the closed end acts as a stop to align the wire bundle. No secondary locking feature is listed, so the retention relies on the header's pin geometry and the housing friction fit.