• TWU4047AONL, 1000 Base RJ45 Modular Jack with Single USB with Transformer Tab Up with Orange&Green/ Yellow Led - side view
  • TWU4047AONL, 1000 Base RJ45 Modular Jack with Single USB with Transformer Tab Up with Orange&Green/ Yellow Led - front view
  • TWU4047AONL, 1000 Base RJ45 Modular Jack with Single USB with Transformer Tab Up with Orange&Green/ Yellow Led - back view
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TWU4047AONL 100/1000 Base-T USB Combo RJ45 MagJack, Tab Up, Orange&Green/ Yellow LED

The TeleWire Technology TWU4047AONL is a 100/1000 Base-T with USB EMI-finger shielded RJ45 MagJack with integrated magnetics. Manufactured in Taiwan.

Cross Reference

  • Bel Fuse 0821-1X1T-43-F — the TWU4047AONL cross-references to this part.
  • LINK-PP LPJU3936AONL — same footprint, sourced outside mainland China.

Selection Notes

  • RJ45 with single USB — one cut-out carries network and single USB port.
  • 100/1000 Base-T — matched magnetics for this line rate, no external transformer.
  • Orange&Green/ Yellow LEDs — indicated condition set by the host PHY design.
  • Integrated magnetics — isolation and common-mode choke inside the connector, not on the PCB.

Typical application: bench and rack equipment that needs a service USB port beside the Ethernet jack.

Pricing for the TWU4047AONL ranges from $0.50 to $3.00 USD depending on order quantity and configuration, with volume tiers available on request.

Validate the TWU4047AONL on your board first. Samples are available for design validation, and the mechanical drawing gives the footprint before you commit a layout. Request a sample or quotation.

Product Packaging Information

Package Tray (Reel packaging options available)
Carton size 32*30*31cm
Qty/carton 1200pcs
G.W/carton 8.5kg
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Product Specifications

RJ Type 8P8C(RJ45)
Ports Single Port with Single USB
Speed 100/1000 Base-T
Latch Type Up
LED Orange&Green/ Yellow
Shielding Shield with EMI Finger
PCB Mount Type Through Hole
Orientation Right Angle (90°)
AutoMDIX Yes
PCB Material FR4
Contact Material Gold
Contact Plating Gold Flash/ 6u"/ 15u"/ 30u"/ 50u"
Certification RoHS Compliant
Product Length (Inches/mm) 1.142/ 29.00
Product Width (Inches/mm) 0.654/ 16.60
Product Height (Inches/mm) 0.822/ 20.89
Temperature 0℃ ~ 70℃
Compatible Brands Belfuse

Related jacks

Same family, different latch, LED or plating option.

Cost-Effective Alternatives for Major Brand RJ45 Jack

Facing long lead times or high costs from major connector brands? We provide high-quality, drop-in replacements for standard modular jacks from TE, Molex, Amphenol, and Wurth. Our connectors match industry-standard footprints and performance specs at a more competitive price point.

From Flash, 3µ", 6µ", 15µ", 30µ", to 50µ" gold plating
Share the drawing to get equivalent match
Short lead times and consistent manufacturing in Taiwan
100% tested for contact resistance and insulation integrity
Request Custom Quote

We reply within 24 hours. No account needed. Your specifications stay confidential; NDA available on request.

What is a Taiwan-made alternative to the Bel Fuse 0821-1X1T-43-F?
The TWU4047AONL from TeleWire Technology cross-references to the Bel Fuse 0821-1X1T-43-F and to LINK-PP LPJU3936AONL. It is manufactured in Taiwan, giving buyers a supply route outside mainland China for the same footprint. Send the footprint you are designing against and TeleWire Technology will confirm compatibility.
Can the TWU4047AONL be built to a different configuration?
Yes. The standard TWU4047AONL ships with Orange&Green/ Yellow LEDs and a tab-up latch. TeleWire Technology can change LED colour, latch direction, contact plating thickness (Gold Flash through 50 microinch) and tray or reel packaging against your drawing, while holding the footprint that matches Bel Fuse 0821-1X1T-43-F.
How do I qualify the TWU4047AONL as a second source?
Request a sample of the TWU4047AONL and the mechanical drawing from TeleWire Technology, then check the footprint against the Bel Fuse 0821-1X1T-43-F on your board. TeleWire Technology builds in Taiwan under an ISO 9001 quality system, and its engineering team will review your drawing before you commit.