LPJG0926HENL 100/1000 Base-T RJ45 MagJack with PoE+ Support

Key Features of LPJG0926HENL RJ45 Conenctor:

1. Single-port RJ45 connector with built-in magnetics designed for 100/1000Base-T Ethernet (Gigabit) with PoE+ capability. 

2. 1×1 port configuration, through-hole mounting. 

3. Down-tab orientation (tab down) with green/yellow LEDs built-in.

4. Meets IEEE 802.3at (PoE+) standard; designed for LAN applications such as SOHO ADSL modems, LAN-on-Motherboard (LOM), hubs, switches. 

5. Materials Performance:

• Housing material: Thermoplastic PBT with 30% glass fibre, UL94V-0 rated.
• Contact: phosphor bronze; pins: brass;
• Shield: SUS 304.
• Contact plating in mating area: minimum 6 µinches gold. 

6. High isolation magnetics: Turn ratio 1CT : 1CT (primary to secondary) for each pair.

7. Key electrical performance:

• Inductance open-circuit: ≥ 350 µH (100 kHz/0.1 V, 8 mA bias); ≥ 120 µH (100 kHz/0.1 V, 18 mA bias). 
• Insertion loss: maximum –1.0 dB (1-100 MHz); –1.2 dB (100-125 MHz).
• Return loss: minimum –16 dB (1-40 MHz); –12 dB (40-60 MHz); –10 dB (60-80 MHz); –8 dB (80-100 MHz). 
• Crosstalk: –30 dB minimum (1-100 MHz). 
• Common mode rejection: –30 dB minimum (1-100 MHz). 
• DC/voltage rating at RJ-45 pins: up to 720 mA at 57 VDC (continuous).
• Hi-pot test: 1500 Vrms minimum. 

8. Operating temperature: 0 °C to 70 °C.

9. Package dimensions (approx.): Length ~21.25 mm, Width ~15.93 mm, Height ~13.30 mm. 

10. Certifications / Compliance: RoHS, REACH, UL file number E484635. 

Mechanical & Mounting Specifications:

• Orientation: 90° (right angle) through-hole mounting. 
• Retaining posts: T-post type for sturdy board mounting. 
• Shield ground: connected via shield tab (SUS 304) to board ground plane.
• Wave solder tip temperature: 250 °C for 5 seconds.
• Suggested PCB layout provided in datasheet.

LPJG0926HENL RJ45 Datasheet:

LPJG0926HENL.pdf 

Design Considerations & Notes:

1. Ensure board layout follows recommended footprint and shield grounding as per datasheet.
2. Pay attention to current rating (720 mA @ 57 V) if your PoE design pushes high power scenarios (e.g., PoE+ devices).
3. Operating temperature limited to 0 °C–70 °C; if your design runs hotter (industrial/extended temp) check suitability or derate.
4. When designing EMI compliance and signal integrity, use the specified magnetics and test for insertion/return loss, crosstalk per data.
5. Verify LED footprint and tab orientation (green/yellow LED option) to match your board layout.

Why Choose LPJG0926HENL?

• Combines Gigabit Ethernet speeds with PoE+ support, reducing the need for separate power wiring.
• Integrated magnetics save board space and simplify design.
• Compliance with industry standards (IEEE 802.3at, UL, RoHS) ensures reliable operation and design freedom.
• Robust material choice and shielding support EMI/EMC performance in demanding environments.
• Suitable for industrial-grade environments and mainstream network appliances alike.