Pitch and FPC thickness — the two dimensions that seal the fit
The 1734248-9: The 9-position count is an odd number — most FPC connectors run even, so double-check your circuit count before committing. The vertical orientation (contacts vertical, 1-sided) and SMT termination suit a board-edge layout where the FPC enters perpendicular to the PCB.
Mating cycle limit and slide lock retention
20 mating cycles means this connector is designed for infrequent disconnect — not a field-service or repeated-mate application.