It belongs to the 1734715 series of Ethernet connectors, and its Cat3 rating means it is specified for 10BASE-T and 100BASE-TX networks — not for Gigabit or higher-speed Ethernet that requires Cat5e or Cat6 performance. The shielded shell with EMI fingers provides a low-impedance path to chassis ground, reducing radiated emissions from the cable interface.
Shielding and Board Lock — What They Mean for Assembly
The board lock feature — two through-hole posts that solder into the PCB — anchors the jack against the insertion and extraction forces of repeated cable mating.
The housing is glass-filled PA46 (Nylon 4/6), rated for -40°C to 70°C.