20-Position Right-Angle Plug for Parallel Board Stacking
The Hirose FX2-20P-1.27DS(71) is a 20-position board-to-board plug from the FX2 series, designed for parallel PCB stacking with a 1.27 mm pitch between contacts. It uses a right-angle through-hole mounting orientation, so the plug sits perpendicular to the board edge — typical for mezzanine or card-edge applications where the mating receptacle comes in from the side.
Board-Lock Variant for Vibration Environments
The FX2-20P-1.27DSL(71) is the same 20-position, right-angle plug but adds board locks — metal tabs that solder into plated through-holes for extra shear-force retention. If your assembly sees vibration or the mating cable harness applies side load, the board-lock version keeps the connector from lifting pads during reflow or in service. The standard FX2-20P-1.27DS(71) relies on the signal-pin solder joints alone; for a fixed, low-vibration installation that is sufficient and avoids the extra footprint of the lock holes.
