• TWU4512AONL, 100 Base RJ45 Modular Jack with Single USB with Transformer Tab Up with Orange&Green/ Yellow Led - side view
  • TWU4512AONL, 100 Base RJ45 Modular Jack with Single USB with Transformer Tab Up with Orange&Green/ Yellow Led - front view
  • TWU4512AONL, 100 Base RJ45 Modular Jack with Single USB with Transformer Tab Up with Orange&Green/ Yellow Led - back view
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TWU4512AONL 10/100 Base-T USB Combo RJ45 MagJack, Tab Up, Orange&Green/ Yellow LED

The TeleWire Technology TWU4512AONL is a 10/100 Base-T with USB EMI-finger shielded RJ45 MagJack with integrated magnetics. Manufactured in Taiwan.

Cross Reference

  • Bel Fuse 0821-1X1T-36-F — the TWU4512AONL cross-references to this part.
  • Würth Elektronik 7497011611A — a further published equivalent on the same footprint.
  • LINK-PP LPJU3401AONL — same footprint, sourced outside mainland China.

Selection Notes

  • RJ45 with single USB — one cut-out carries network and single USB port.
  • 10/100 Base-T — the transformer inside is specified for this rate.
  • Orange&Green/ Yellow LEDs — wired to the host PHY, not to internal logic.
  • −40 °C to +85 °C — industrial range, not the commercial 0-to-70 grade.

Typical application: panel I/O on instruments and industrial HMIs, where network and USB share one cut-out.

Pricing for the TWU4512AONL ranges from $0.50 to $3.00 USD depending on order quantity and configuration, with volume tiers available on request.

Validate the TWU4512AONL 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

Product Drawing

TWU4512AONL mechanical drawingDimensions, footprint and pin-out
View full details

Product Specifications

RJ Type 8P8C(RJ45)
Ports Single Port with Single USB
Speed 10/ 100 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 -40℃ ~ 85℃
Compatible Brands Bel Fuse, Würth Elektronik

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, Wurth, Halo, Bel Fuse, and Pulse. 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-36-F?
The TWU4512AONL from TeleWire Technology cross-references to the Bel Fuse 0821-1X1T-36-F and to LINK-PP LPJU3401AONL. 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.
Which manufacturers' parts does the TWU4512AONL replace?
The TWU4512AONL cross-references to Bel Fuse 0821-1X1T-36-F; Würth Elektronik 7497011611A, and to LINK-PP LPJU3401AONL. TeleWire Technology publishes the full cross-reference so a sourcing engineer can qualify one Taiwan-built part against several incumbents at once.
How do I qualify the TWU4512AONL as a second source?
Request a sample of the TWU4512AONL and the mechanical drawing from TeleWire Technology, then check the footprint against the Bel Fuse 0821-1X1T-36-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.