The Hirose DF81D-50P-0.4SD(52) is a 50-position plug from the DF81 series, designed for terminating discrete or ribbon cable to a free-hanging in-line connector. The connector terminates via solder attachment to the cable, with the outer shroud contact providing shielding continuity.
Wire Gauge and Termination — What the Cable Spec Means for the Build
The DF81D-50P-0.4SD(52) accepts wire gauges from 34-36 AWG and 36-46 AWG — covering the fine wire diameters common in ribbon cable and thin discrete signal wiring. The solder termination requires a controlled hand or reflow process; the 0.40 mm pitch leaves little margin for bridging between adjacent pads.
Position Count and Series Fit — Where the 50-Position Sits
At 50 positions, this is the high-count member of the DF81 series. If the BOM calls for 50 circuits, this is the part; the 40-position variant will not fit a 50-way pad layout.