7499111000A WE-RJ45 Gigabit Tab-Up RJ45 Connector Current & Voltage PHY

The 7499111000A (WE-RJ45LAN series) is a single-port (1x1) Through-Hole (THT) Gigabit Integrated Connector Module (ICM) engineered for pure-data 1000BASE-T networking. Built with a Tab-Up (Latch Up) mechanical latch and a LED-less front profile, this connector features universal internal magnetic coupling designed to interface seamlessly with both Current-Mode and Voltage-Mode Ethernet PHY transceivers. With integrated EMI shield tabs and 1500 Vrms isolation, it delivers peak signal integrity for designs utilizing external light pipes or panel-mounted status indicators.

7499111000A Non-PoE RJ45 MagJack Technical Specifications Table

Key Features of 7499111000A Tab Up THT RJ45

• WE-RJ45 LAN series
• Part Number: 7499111000A
• 1000BASE-T Gigabit Ethernet
• Single port configuration
• Integrated Ethernet magnetics
• Non-PoE design
• Tab-Up orientation
• Through-hole mounting
• Shield tabs included
• No integrated LEDs
• Current & Voltage PHY mode compatible
• Operating temperature: 0°C to +70°C

7499111000A WE-RJ45 Datasheet

Universal PHY Magnetics & Schematic Architecture

[ PHY CHIP SIDE ]                    [ CABLE / RJ45 SIDE ]
    Pair 1: TRD1+ (Pin 11) ──┐ 1CT : 1CT ┌───[CMC]─── J1 (TRP1+)
            TRCT1 (Pin 12) ──┼───┐   ┌───┤
            TRD1- (Pin 10) ──┘   │   │   └───[CMC]─── J2 (TRP1-)
                                 │   │
    Pair 2: TRD2+ (Pin 4)  ──┐ 1CT : 1CT ┌───[CMC]─── J3 (TRP2+)
            TRCT2 (Pin 6)  ──┼───┐   ┌───┤
            TRD2- (Pin 5)  ──┘   │   │   └───[CMC]─── J6 (TRP2-)
                                 │   │
    Pair 3: TRD3+ (Pin 3)  ──┐ 1CT : 1CT ┌───[CMC]─── J4 (TRP3+)
            TRCT3 (Pin 1)  ──┼───┐   ┌───┤
            TRD3- (Pin 2)  ──┘   │   │   └───[CMC]─── J5 (TRP3-)
                                 │   │
    Pair 4: TRD4+ (Pin 8)  ──┐ 1CT : 1CT ┌───[CMC]─── J7 (TRP4+)
            TRCT4 (Pin 7)  ──┼───┐   ┌───┤
            TRD4- (Pin 9)  ──┘   │   │   └───[CMC]─── J8 (TRP4-)
                                 ▼   ▼
               [ Bob Smith Termination: 4x 75Ω Resistors + 1000pF/2kV to Shield ]

Engineering Design Highlights:

Current-Mode vs. Voltage-Mode PHY Versatility: The individual PHY-side center taps (TRCT1 to TRCT4) allow engineers to configure appropriate bias networks. Whether your design uses a Current-Mode PHY requiring direct supply voltage injection (e.g., +1.2V, +2.5V, or +3.3V) or a Voltage-Mode PHY requiring center taps AC-decoupled to ground via 0.1 µF capacitors, the 7499111000A accommodates both without internal bias conflicts.

Advantages of the "No LED" Configuration:

• Clean PCB Routing: Eliminates 4 LED traces from the PCB edge, reducing layer crowding and removing potential high-speed digital switching noise from coupling into the analog Ethernet differential pairs.
• Enclosure Flexibility: Ideal for front panels utilizing centralized acrylic light pipes or industrial DIN-rail modules where LEDs are mounted on an auxiliary display board.

Mechanical Footprint & Panel Integration Guidelines

1. Recommended PCB Hole Layout:
- Differential Signal Leads (Pins 1–12): Requires 12 drilled holes of Ø0.89 mm [12 x Ø0.89 mm]
- Mechanical Shield Ground Posts: 2 holes of Ø1.60 mm ~ Ø1.70 mm and 2 holes of Ø3.20 mm ~ Ø3.25 mm for secure chassis ground attachment
- Note on LEDs: No LED pin drill holes required, maximizing PCB keep-out space under the front bezel

2. Recommended Panel Bezel Cutout:
- Opening Width: 16.50 mm ~ 17.00 mm
- Opening Height: 13.50 mm ~ 14.00 mm
- Shell Feature: Equipped with top and side EMI spring grounding tabs to ensure continuous metallic contact with the chassis enclosure

3. Wave Soldering Envelope:
- Recommended Peak Temperature: 260°C Max
- Dwell Time: 10 Seconds Max

PHY Compatibility Considerations

PHY Chip Mode: Current & Voltage Mode

During Ethernet PHY selection, engineers should verify:

• PHY recommended magnetics configuration
• center tap connection method
• termination network
• EMC requirements

A mechanically compatible RJ45 does not automatically guarantee electrical compatibility. The connector is only one piece of the Ethernet signal chain, because apparently electrons still insist on following physics instead of marketing departments.

7499111000A Gigabit RJ45 integrated magnetics FAQs

Q1: What makes the Würth 7499111000A compatible with both Current-Mode and Voltage-Mode PHY chips?

The 7499111000A features independent PHY-side center taps (Pins 1, 6, 7, 12) for all 4 differential pairs without hardwired internal bias voltage shorts. This allows hardware engineers to either inject DC power rails (for Current-Mode PHYs) or place decoupling capacitors to ground (for Voltage-Mode PHYs), providing universal PHY transceiver compatibility.

Q2: Does the 7499111000A have built-in LEDs?

No. The 7499111000A is a "No LED" (LED-less) RJ45 connector. It is specifically designed for applications that route status indications via external light pipes, use panel-mounted LEDs, or require simplified PCB layouts without extra LED signal traces.

Q3: Does 7499111000A support Power over Ethernet (PoE)?

No. This connector is a Non-PoE Gigabit MagJack engineered exclusively for data communication. If your hardware requires PoE (IEEE 802.3af) or PoE+ (IEEE 802.3at), select an alternative PoE-rated series such as Würth 7499111121A or LINK-PP LPJK series.