4-Position Panel-Mount Receptacle for Signal and Low-Power DC
The Hirose HR10A-7R-4P(73) is a 4-position circular receptacle from the HR10A series, designed for panel-mount applications where a compact, push-pull mating interface is preferred over threaded couplings. It accepts male pins and terminates via solder cups, making it a straightforward choice for cable assemblies that need a quick-connect, keyed interconnect in a metal shell.
Position Count and Plating Options Across the HR10A-7R Family
The HR10A-7R-4P(73) sits in a sub-family sharing the same Shell Size 7, push-pull fastening, and panel-mount bulkhead fitting. The key difference between siblings is the position count and, in one case, the contact plating. Against the HR10A-7R-5P(73) (5 positions) and HR10A-7R-6P(73) (6 positions), the 4-position variant is the lowest-density option — useful when the circuit count is fixed at four and the extra shell cavity is not needed. All three carry the same 2 A per contact rating and silver mating finish. Gold offers better corrosion resistance and higher mating cycle life in aggressive environments; the silver variant is the standard choice for cost-sensitive, clean-room or indoor builds where the thicker plating still provides adequate durability.