Panel-Mount Circular Receptacle for Shielded Signal Paths
The Hirose HR12-10R-5SD(71) is a 5-position, shell size 10 circular receptacle designed for applications where a shielded, keyed interconnect is needed in a panel-mount format. It accepts female sockets terminated via solder cups, and the snap-in fastening with keyed orientation prevents mismating in multi-connector panels. Operating temperature spans -15°C to 60°C, which covers indoor industrial cabinets and consumer audio gear but not extended outdoor exposure.
Voltage and Shielding: What Drives the Fit
Rated 100 VAC and 140 VDC, this connector handles mixed AC/DC signal and low-power circuits within the same shell. The dual voltage rating is useful when the same harness carries a DC rail and an AC signal — the creepage and clearance inside the shell size 10 support both without derating. The shielded construction means the shell provides a continuous ground path when mated with the corresponding shielded plug. For audio, sensor, or low-level signal runs, this keeps common-mode noise off the signal lines. The ground feature ties the shield to circuit ground through the panel or a dedicated ground pin. The 5-position count is the key BOM match — confirm your circuit count before committing. The shell size 10 footprint is shared with 8- and 10-position siblings (HR12-10RC-8SDL(71) and HR12-10RD-10SDL(71)), so the panel cutout and mounting hardware are common across the series.
Position Counts Across the HR12 Shell Size 10 Family
The HR12-10R-5SD(71) carries 5 positions against the 8 positions of the HR12-10RC-8SDL(71) and the 10 positions of the HR12-10RD-10SDL(71), all within the same shell size 10. The trade-off is circuit density versus contact size — fewer positions leave more room between contacts, which helps with solder-cup termination and voltage isolation. The 8- and 10-position siblings use the same panel cutout and snap-in retention, so swapping between them requires only a cable assembly change, not a panel rework. A notable difference: the 10-position HR12-10RD-10SDL(71) uses gold-plated mating contacts (8.00 µin / 0.203 µm) instead of tin. If your application demands higher mating cycle life or a more corrosion-resistant interface, that sibling is the better fit despite the same shell size and voltage rating.