The TE Connectivity AMP-Latch 1658621-4 is a 20-position IDC receptacle designed for mass-termination to 26-28 AWG ribbon cable. It belongs to the AMP-Latch series, the workhorse IDC family for parallel cable-to-board interconnects in telecom, datacom, and industrial control panels.
Termination and Keying Details
Termination is IDC — the cable is pressed into the fork contacts, displacing the insulation to make gas-tight connections. No stripping or soldering needed, which keeps assembly time low for multi-conductor cables. The housing includes a feed-through design, so ribbon cable can pass through the connector and continue to another point — useful for daisy-chaining signals across multiple boards. A polarizing key prevents the receptacle from being mated in the wrong orientation, a common source of field errors on unkeyed IDC connectors. The free-hanging (in-line) mount means it sits on the cable, not the board; the matching header takes the board-side position.