1.27 mm Pitch, 20-Position Dual-Row SMT Receptacle
The 20021323-00020T1LF: The 0.087" (2.20 mm) insulation height keeps the mated stack height low — useful when the board-to-board gap is tight.
Board Fit and Footprint Considerations
The 1.27 mm pitch and 0.050" row spacing demand a tight PCB layout — the dual-row footprint fits roughly 20 signal lines in a 0.100" wide band, which helps keep the board edge compact. As a bottom-entry receptacle, the solder tails are on the same side as the mating face — confirm the board stack-up so the mating header approaches from the opposite side. The square female socket contacts accept a 0.40 mm square pin header (typical Minitek127 mating half). The push-pull retention relies on the contact beam spring force, not a separate lock — adequate for stationary boards but not for high-shock harnesses.
No official cross-reference or pin-compatible alternative is listed by the manufacturer. For BOM matching, confirm the footprint and mating header pitch before substituting.