Board-Mount RJ45 Jack, Shielded, Right-Angle
It carries a full shield with an EMI finger for conducted-noise bleed, plus a board lock to anchor the part during wave solder and resist shear from the mating plug.
This jack is rated Cat3, which limits its certified performance to 16 MHz — adequate for 10BASE-T and 100BASE-T4 Ethernet, voice, and low-speed industrial fieldbus. It is not rated for 100BASE-TX (Cat5, 100 MHz) or higher data rates. The 50.0µin (1.27µm) gold plating on the phosphor bronze contacts provides good corrosion resistance and cycle life for field-serviceable equipment, but the Cat3 rating is the ceiling on signal integrity. If your BOM calls for Gigabit Ethernet or PoE+ at higher frequencies, you need a Cat5e or Cat6 jack.
Shielded Build and Board Lock
The shield with integrated EMI finger is the main differentiator from an unshielded 43202 variant. It grounds through the PCB solder pads, bleeding common-mode noise from the cable shield before it reaches the magnetics. For a panel-mounted Ethernet port in a noisy electrical cabinet, the shielding is worth the board-space cost.