20-Position IDC Ribbon Cable Header, 4 Rows, Dual-Pitch Layout
The 4-row arrangement packs the 20 circuits into a compact width, and the feed-through feature allows daisy-chaining along the cable.
Dual-Pitch: Cable Side vs. Board Side
The cable pitch is 0.050" (1.27 mm), matching standard 20-conductor ribbon cable. The row-to-row spacing is 0.075" (1.91 mm), which keeps the four rows within a board footprint that fits a standard 0.100" grid layout. This dual-pitch design is the key selection parameter: the cable must be 0.050" pitch, and the PCB footprint must accommodate the 0.100" board-side pitch with the 0.075" row stagger.
The connector mounts through-hole on the PCB, with the pins soldered on the opposite side. The feed-through feature means the connector body has a slot that lets the ribbon cable pass through, enabling multiple connectors on the same cable run for daisy-chain topologies.
This is a robust plating for IDC applications — the thick tin layer provides a gas-tight connection at the insulation-displacement interface and resists fretting corrosion in low-cycle, permanent-installation environments. Tin is not intended for repeated mating/unmating cycles; this connector is designed for one-time cable assembly to a board, not field-service reconnection.
It is ROHS3 compliant.