LPJU3101AONL 10/100BASE-T RJ45 MagJack with Stacked USB 2.0 Type-A Port

LPJU3101AONL Stacked RJ45 USB Connector Overview

The LINK-PP LPJU3101AONL is a high-density, 2-in-1 hybrid I/O connector that combines a single-port 10/100BASE-T Fast Ethernet RJ45 MagJack with an industry-standard USB 2.0 Type-A Female port into a single vertical right-angle through-hole package.

Featuring internal 1CT:1CT magnetics, Bi-Color Orange/Green and Yellow status LEDs, multi-point EMI spring fingers, and 1500 Vrms dielectric isolation, this connector saves over 50% of PCB front-panel horizontal edge width. It serves as an exact 1:1 drop-in replacement for HanRun HR981191C.

Key Features:

- RJ45 (8P8C) + USB 2.0 Type-A integrated interface
- Supports 10/100BASE-T Fast Ethernet
- Integrated Ethernet magnetics with 1CT:1CT ±5% turns ratio
- Non-PoE design for pure data transmission
- 1500 Vrms isolation HiPot
- Through-hole, 90° right-angle mounting
- Orange/Green bi-color LED + Yellow LED status indication
- Compact dimensions: 29.00 × 16.60 × 20.89 mm
- Direct cross reference to HanRun HR981191C
- UL safety certification: E484635

RJ45 USB Combo Technical Specifications

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LPJU3101AONL Magnetic RJ45 Jack with Stacked USB Datasheet

Internal Magnetics & Hybrid Schematic Topology

[ RJ45 ETHERNET PHY SIDE ]           [ RJ45 CABLE SIDE ]
     TD+ (Pin 2) ──┐ 1CT : 1CT ┌───[Common Mode Choke]─── J1 (TX+)
     CT  (Pin 1) ──┼───┐   ┌───┤
     TD- (Pin 3) ──┘   │   │   └───[Common Mode Choke]─── J2 (TX-)
                       │   │
     RD+ (Pin 4) ──┐ 1CT : 1CT ┌───[Common Mode Choke]─── J3 (RX+)
     CT  (Pin 6) ──┼───┐   ┌───┤
     RD- (Pin 5) ──┘   │   │   └───[Common Mode Choke]─── J6 (RX-)
                       ▼   ▼
        [ Bob Smith Termination: 4x 75Ω Resistors + 1000pF/2kV to Shield ]
  ══════════════════════════════════════════════════════════════════════════════
                  [ USB 2.0 PORT (ISOLATED SHIELDED CAVITY) ]
     Pin U1: VBUS (+5V DC)
     Pin U2: Data - (D-)  ──► Controlled 90 Ω Differential Pair
     Pin U3: Data + (D+)  ──► Controlled 90 Ω Differential Pair
     Pin U4: GND (Ground)

Mechanical Footprint & Panel Integration Guidelines

1. Recommended PCB Hole Layout:

- RJ45 Ethernet Signal Leads (Pins 1–6): 6 holes of Ø0.89 mm [6 x Ø0.89 mm]
- LED Indicator Leads (Pins 7–10): 4 holes of Ø0.92 mm ~ Ø1.00 mm
- USB 2.0 Interface Leads (Pins U1–U4): 4 holes of Ø0.92 mm
- Mechanical Shield Ground Posts: 2 holes of Ø1.57 mm and 2 holes of Ø2.30 mm

2. Recommended Panel Bezel Cutout:

- Opening Width: 16.60 mm ~ 17.09 mm
- Opening Height: 20.89 mm ~ 21.20 mm
- Shell Feature: Integrated top, bottom, and side EMI spring fingers ensure continuous 360-degree ground contact with the metallic chassis enclosure.

3. Wave Soldering Envelope:

- Recommended Peak Temperature: 250°C Max
- Dwell Time: 5 Seconds Max

100% Pre-Shipment Quality Testing for THT RJ45 USB connector

1. RoHS Analyzer: XRF screening confirms RoHS 2011/65/EU 
2. EMI Testing: Grounding continuity on RJ45 & USB shell
3. 1500 Vrms HiPot Test: Dielectric line-to-PHY isolation screen
4. Auto Transformer Test: 1CT:1CT turns ratio, OCL & return loss

5. USB Continuity Check: Pin U1-U4 short/open & contact resistance

Why Choose LINK-PP RJ45?

1. Drop-in Replacement Track Record:

LINK-PP components are engineered to match industry standards pin-for-pin. The LPJU3101AONL serves as an immediate drop-in replacement for HanRun HR981191C, eliminating the need for costly PCB redesigns, re-tooling, or firmware adjustments during supply chain allocations.

2. Resilient Supply Chain & Rapid Lead Times (2– 4Weeks):

While traditional European and American connector manufacturers quote lead times of 16 to 26 weeks, LINK-PP maintains extensive raw material inventory and high-capacity manufacturing, delivering standard orders within 2 to 4 weeks with flexible MOQs.

3. Certified Global Quality & Rigorous Testing:

LINK-PP products carry full international credentials, including UL Recognition (cURus File Number E484635), CE, and RoHS 2011/65/EU compliance. Every single modular jack undergoes 100% outgoing electrical, dielectric (HiPot), and mechanical testing before dispatch.

4. Advanced Automated Manufacturing Scale:

Operating state-of-the-art automated coil-winding and precision stamping facilities, LINK-PP guarantees tighter magnetic tolerances (turns ratio ±5%), superior coplanarity, and consistent high-frequency insertion loss performance across high-volume production runs.

5. Direct Field Application Engineering (FAE) Support:

We support hardware developers with immediate 2D/3D CAD footprints (Altium, KiCad, Eagle, STEP), comprehensive test reports, and free prototype samples dispatched within 24–48 hours.