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TWS28503CNL 10/100 Base-T 2x1 Port RJ45 Jack, Tab Both, No LEDs

The TeleWire Technology TWS28503CNL is a 10/100 Base-T 2x1 EMI-finger shielded RJ45 jack. Manufactured in Taiwan.

Cross Reference

  • Bel Fuse 1840990-1 — the TWS28503CNL cross-references to this part.
  • LINK-PP LPJ17492CNL — same footprint, sourced outside mainland China.

Selection Notes

  • 2x1 port array — 2 ports on one shell, saving panel width.
  • PoE+, IEEE 802.3at — up to 30 W at the PSE over the data pairs.
  • 10/100 Base-T — the interface rate this housing is qualified for.
  • No LEDs — one fewer tolerance to hold between board and bezel.

Typical application: multi-port industrial switches where several drops leave through one bezel.

Pricing for the TWS28503CNL ranges from $0.50 to $3.00 USD depending on order quantity and configuration, with volume tiers available on request.

Validate the TWS28503CNL 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 2x1
Speed 10/ 100 Base-T
Latch Type Both
Shielding Shield with EMI Finger
PCB Mount Type Through Hole
Orientation Right Angle (90°)
PoE PoE+
AutoMDIX Yes
PCB Material FR4
Contact Material Gold
Contact Plating Gold Flash/ 6u"/ 15u"/ 30u"/ 50u"
Certification RoHS Compliant
Product Length (Inches/mm) 1.122/ 28.50
Product Width (Inches/mm) 0.678/ 17.21
Product Height (Inches/mm) 0.996/ 25.29
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 1840990-1?
The TWS28503CNL from TeleWire Technology cross-references to the Bel Fuse 1840990-1 and to LINK-PP LPJ17492CNL. 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 TWS28503CNL be built to a different configuration?
Yes. The standard TWS28503CNL ships with latches in both directions. 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 1840990-1.
How do I qualify the TWS28503CNL as a second source?
Request a sample of the TWS28503CNL and the mechanical drawing from TeleWire Technology, then check the footprint against the Bel Fuse 1840990-1 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.