A 6-Position Push-Pull Receptacle for Panel-Mount Applications
The Hirose HR10A-7R-6PB(74) is a 6-position receptacle with male pins, part of the HR10A series of circular push-pull connectors. It uses a keyed orientation to prevent mismating, and the push-pull lock allows quick connect and disconnect without a threaded coupling ring.
Rated 2 A per contact at 100 VAC / 140 VDC, the HR10A-7R-6PB(74) is sized for signal-level and low-power circuits, not high-current bus work.
The through-hole solder tails terminate on the PCB, so the board must have a matching hole pattern for the 6 pins. The keyed shell ensures the mating plug can only be inserted in one orientation — a practical safeguard on multi-connector backplanes.
The HR10A-7R-6PB(73) is identical in every spec — same 6 positions, 2 A rating, panel mount, push-pull lock — except the mating contact finish is silver (78.7 µin / 2.00 µm thick) instead of gold. Silver gives a lower contact resistance at first mate but tarnishes faster in corrosive environments and supports fewer mating cycles. For a clean, indoor, low-cycle application the (73) will work; for field-service or high-humidity conditions the gold (74) version is the better call.