Shielded RJ45 Jack with Board Guide for Reliable Ethernet Termination
The TE Connectivity 5406566-2 is a right-angle, through-hole modular jack with an 8p8c (RJ45) configuration, designed for Cat5-rated Ethernet applications. Its defining feature is the integrated shielding with an EMI finger, which provides a low-impedance path to ground on the PCB, reducing radiated emissions and improving immunity in electrically noisy environments like industrial control panels or network switches. The built-in board guide aids alignment during automated assembly, preventing bent pins and ensuring consistent solder joints across the two-port layout.
The Cat5 rating means this jack is specified for 100 MHz operation, supporting 100BASE-TX and 1000BASE-T (Gigabit Ethernet) over the full channel length. The EMI finger shield is the practical difference between this and an unshielded jack: it contacts the mating plug's shield before the signal pins engage, bleeding off electrostatic discharge and common-mode noise that would otherwise couple into the differential pairs.
The right-angle orientation places the RJ45 port parallel to the PCB, ideal for board-edge installations where the cable exits the enclosure horizontally. The tab-down orientation is the standard for keyed RJ45 plugs, ensuring the latch aligns with the jack's internal lock.