The Hirose HR10A-7R-4PB(73) is a 4-position male receptacle from the HR10A series, designed for panel-mount applications where a compact, push-pull locking circular connector is needed. It carries 4 male pins in a shell size 7 insert, with a silver-plated mating finish at 78.7 µin thickness — a robust choice for moderate-cycle, corrosion-resistant interconnects in instrumentation, medical devices, and industrial control panels.
Mating Half and Panel Installation
This receptacle mates with the HR10A-7R-4SB(73), a 4-position female socket receptacle with the same shell size, keying, and push-pull fastening. The two halves lock with a positive push-pull mechanism — no threads to turn, just a straight mate and a tug to release. The zinc alloy shell with nickel finish provides a durable, corrosion-resistant exterior.
What the 2 A Rating and Silver Plating Mean
The 2 A per-contact rating is a signal-level current — fine for sensor lines, encoder signals, or low-power control circuits, but not for a motor feed or heater load.