20-Position IDC DIP Header for Ribbon Cable
The TE Connectivity AMP-Latch 1-746610-5 is a 20-position DIP header designed for mass-termination to 0.050" (1.27mm) pitch ribbon cable via IDC contacts. The 0.100" (2.54mm) board-side pitch matches standard DIP footprints, and the two rows load all positions. The header accepts 26-28 AWG stranded or 26-30 AWG solid wire — the IDC slot geometry is cut for that range, so verify your ribbon conductor gauge before the press. A feed-through feature allows daisy-chaining multiple headers along the same cable run, common in backplane or card-cage wiring where one ribbon serves several boards.
Tin Contacts and Plating Thickness
Tin is the workhorse for this class of connector; it doesn't need gold because the IDC termination is a one-time gas-tight joint, and the header-to-receptacle mate count is typically low in rack-and-panel gear.
Pitch Match and Pin-One Check
Watch pin-one every press. The header is black, and the AMP-Latch series typically keys pin-one with a triangle or notch on the housing — confirm the orientation against the receptacle before the fixture comes down. The 0.050" cable pitch has to match the ribbon conductor spacing exactly; a mismatch bites between conductors and the whole cable scrap. The feed-through feature means the IDC contacts pass the signal straight through the header, so a second header can be terminated further down the same ribbon without cutting the cable.