RJ45 Jack for 10/100 Base-T, Shielded, Right-Angle Mount
The Molex 0934628320 is a single-port RJ45 jack from the MXMag 93462 series, designed for 10/100 Base-T Ethernet with AutoMDIX support. It is a right-angle, through-hole component with a board height of 0.555" (14.10mm), making it suitable for edge-mount applications where the jack sits perpendicular to the PCB.
Shielding and EMI Management
This jack is fully shielded with a brass shield and includes an EMI finger. For a 10/100 Base-T link running over unshielded twisted pair, this shield bleeds coupled noise from the cable shield or the connector shell itself, keeping the differential signal clean.
What 10/100 Base-T Means for Your Design
The 0934628320 is rated for 10/100 Base-T, not Gigabit. The 4 cores per jack correspond to the two differential pairs (TX and RX) that 100Base-TX uses. The AutoMDIX feature means the PHY can automatically correct for a straight-through vs crossover cable, which simplifies PCB layout when the port is used on a switch or end device.
Mounting and Board Layout
The right-angle orientation and through-hole termination anchor the jack mechanically to the board. The 14.10 mm height above the board sets the vertical clearance needed for the mating RJ45 plug and any cable bend radius below the enclosure lid.
Operating Range and Material Choices
The gold flash on the contacts is thin — 2.00µin — which is adequate for the low insertion cycles of a fixed Ethernet port (plug once and leave it). If the design requires frequent plug/unplug in a corrosive environment, a thicker gold plating would be warranted, but for a standard wall-jack or panel-mount application this finish is standard.