Board-Mount Signal Plug for Dense Parallel Interfaces
The Hirose FX2-40P-0.635SH(71) is a 40-position plug from the FX2 series, designed as a right-angle surface-mount interconnect with center strip contacts. The 0.635 mm pitch packs 40 circuits into a compact footprint — typical for parallel data buses, interface cards, or mezzanine-style stacking where signal density matters more than per-contact current.
What the 0.635 mm Pitch and Center Strip Style Mean for Signal Routing
The center strip contact geometry creates a controlled-impedance path through the connector body — the ground plane reference is built into the contact arrangement itself, not dependent on external shielding.
Mounting and Termination — Solder Reflow Checklist
Surface-mount right-angle termination means the plug sits perpendicular to the board, with the solder tails reflowed in a standard SMT line. Gold-plated contacts resist oxidation through multiple reflow cycles and maintain low contact resistance across the product life.