Pitch, Positions, and Contact Side — Fit Check First
The 1734839-7: This is a top-contact connector — the flex circuit's conductive pads face upward when mated. A flipped cable shorts the wrong row, so confirm the cable fold direction before assembly. The FPC thickness spec is 0.30 mm — the actuator grip and contact wipe are designed for that thickness. Using a thicker or thinner cable risks intermittent contact or actuator damage.
Current, Plating, and Temperature — Signal Duty, Not Power
Voltage rating is 250 V — the limiting factor is the pitch and creepage distance, not the contact itself. For circuits below 50 V, derating is not needed.
Mounting and Orientation — Board-Edge Routing
Height above board is 2.05 mm — check clearance under enclosures or adjacent components. The slide lock actuator secures the FPC without insertion force, reducing strain on the cable and contacts during assembly.