• TWD5123B58NL, 10/100 Base Vertical RJ45 Modular Jack with Transformer Tab Up with Green&Yellow/ Green&Yellow Led - side view
  • TWD5123B58NL, 10/100 Base Vertical RJ45 Modular Jack with Transformer Tab Up with Green&Yellow/ Green&Yellow Led - front view
  • TWD5123B58NL, 10/100 Base Vertical RJ45 Modular Jack with Transformer Tab Up with Green&Yellow/ Green&Yellow Led - back view
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TWD5123B58NL 10/100 Base-T Vertical RJ45 MagJack, Tab Up, Green&Yellow/ Green&Yellow LED

The TeleWire Technology TWD5123B58NL is a 10/100 Base-T shielded RJ45 MagJack with integrated magnetics. Manufactured in Taiwan.

Cross Reference

  • TE Connectivity 2301995-3 — the TWD5123B58NL cross-references to this part.
  • TE Connectivity 5-2301995-3 — a further published equivalent on the same footprint.
  • LINK-PP LPJD4012B47NL — same footprint, sourced outside mainland China.

Selection Notes

  • 10/100 Base-T — matched magnetics for this line rate, no external transformer.
  • Green&Yellow/ Green&Yellow LEDs — driven from the host; link and activity mapping is yours.
  • −40 °C to +85 °C — beyond what a commercial-grade jack is rated for.
  • Shielded shell without EMI fingers — the shield terminates through the PCB.

Typical application: outdoor and unheated cabinets where the port exits through a top cover.

Pricing for the TWD5123B58NL ranges from $0.50 to $3.00 USD depending on order quantity and configuration, with volume tiers available on request.

Validate the TWD5123B58NL 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 1x1
Speed 10/ 100 Base-T
Latch Type Up
LED Green&Yellow/ Green&Yellow
Shielding Shield
PCB Mount Type Through Hole
Orientation Vertical (180°)
AutoMDIX Yes
PCB Material FR4
Contact Material Gold
Contact Plating Gold Flash/ 6u"/ 15u"/ 30u"/ 50u"
Certification RoHS Compliant
Product Length (Inches/mm) 0.665/ 16.90
Product Width (Inches/mm) 0.636/ 16.15
Product Height (Inches/mm) 0.657/ 16.70
Temperature -40℃ ~ 85℃
Compatible Brands TE/ Tyco

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 TE Connectivity 2301995-3?
The TWD5123B58NL from TeleWire Technology cross-references to the TE Connectivity 2301995-3 and to LINK-PP LPJD4012B47NL. 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 TWD5123B58NL replace?
The TWD5123B58NL cross-references to TE Connectivity 2301995-3; TE Connectivity 5-2301995-3, and to LINK-PP LPJD4012B47NL. 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 TWD5123B58NL as a second source?
Request a sample of the TWD5123B58NL and the mechanical drawing from TeleWire Technology, then check the footprint against the TE Connectivity 2301995-3 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.