LAN Transformer Manufacturer & Factory

Your Trusted Global Partner for High-Performance Discrete Ethernet Magnetics, Filter Modules, and Power Over Ethernet (PoE) Solutions.

Premium High-Speed Ethernet Magnetics

Explore our leading SMT and THT LAN magnetic modules engineered for network reliability, signal integrity, and high-frequency performance.

In Stocks 1000 Base-T Single Port PoE+ 24 Pin Ethernet Lan Transformer Modules TG1G-S012NZRL
In Stocks 1000 Base-T Single Port PoE+ 24 Pin Ethernet Lan Transformer Modules TG1G-S012NZRL
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10G Base-T 24 Pin Single Port SMT PoE Lan Magnetic Transformer XF-GH-002
10G Base-T 24 Pin Single Port SMT PoE Lan Magnetic Transformer XF-GH-002
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Huge Stocks 1000 Base-T 24 Pin Single Port SMD PoE+ Lan Magnetic Transformer H6062NL
Huge Stocks 1000 Base-T 24 Pin Single Port SMD PoE+ Lan Magnetic Transformer H6062NL
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Huge Stocks 100 Base-T 40 Pin Quad Port SMD Discrete Magnetic Transformer H1164NLT
Huge Stocks 100 Base-T 40 Pin Quad Port SMD Discrete Magnetic Transformer H1164NLT
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Huge Stocks 100/1000 Base-T 48 Pin Dual Port Magnetics Modules Telecom Transformer S558-5999-Q2-F
Huge Stocks 100/1000 Base-T 48 Pin Dual Port Magnetics Modules Telecom Transformer S558-5999-Q2-F
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H81621S 10/100 Base-T SMD Lan Filter Ethernet Transformer
H81621S 10/100 Base-T SMD Lan Filter Ethernet Transformer
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NS0013BLF 10/100 Base-T SMD Lan Filter Module Magnetic Transformer
NS0013BLF 10/100 Base-T SMD Lan Filter Module Magnetic Transformer
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THT Dual Port 10/100 BASE-T Telecom Lan Transformer LP2064NL
THT Dual Port 10/100 BASE-T Telecom Lan Transformer LP2064NL
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FiberNova at a Glance

Pioneering optical and copper integration for next-generation telecommunications and enterprise networking infrastructures since 2016.

12+
Years Industry Expertise
65
R&D Engineers
45
Professional QC Staff
1,200+
Supply Chain Partners

Integrated Network Layer Solutions

Founded in 2016, FiberNova Optical Communication Tech Co., Ltd. (FiberNovaTransceivers.com) operates from a state-of-the-art facility designed to satisfy the rigorous technical requirements of data centers, telecom operators, and system integrators worldwide. While offering market-leading optical transceiver solutions, FiberNova also designs and manufactures high-performance magnetic physical layer interfaces, including LAN transformers, common-mode filters, and PoE modules, facilitating seamless signal transition between fiber optic backbones and copper ethernet distribution nodes.

Macro-Industry Solutions & Global Integration

How LAN transformers bridge physical data transport layers across diverse commercial, industrial, and high-frequency environments.

Enterprise Datacenters & Cloud

Providing optimal signal-to-noise ratio (SNR) in high-density switching systems. As network configurations migrate towards multi-gigabit setups (2.5G, 5G, and 10G Base-T), high-speed magnetics prevent crosstalk and minimize insertion loss in space-constrained rack systems.

Industrial Automation & Smart Grid

Electromagnetically harsh factory floors require isolation levels up to 1500VAC or 3000VAC. Our magnetic components deliver high electrostatic discharge (ESD) protection and robust common-mode noise rejection, maintaining deterministic communication loops.

PoE Device Deployments

With the expansion of IP cameras, wireless access points (WAPs), and smart building devices, our magnetic parts support PoE, PoE+ (IEEE 802.3at), and PoE++ (IEEE 802.3bt) configurations to carry high DC currents (up to 1A per pair) while keeping signals free from saturation-induced distortion.

Technical Specification & Physics of LAN Transformers

In-depth inspection of insertion loss, return loss, and noise rejection parameters driving signal integrity.

An Ethernet LAN transformer functions at the physical interface (PHY) to isolate the network equipment from external line surges. Galvanic isolation prevents hazardous system ground loops and common-mode voltages from reaching high-sensitivity silicon microchips. Utilizing specialized toroidal cores wound with high-conductivity copper wires, our magnetic components satisfy the strict IEEE 802.3 electrical insulation requirements.

Key challenges in design include leakage inductance and interwinding capacitance. Leakage inductance distorts high-frequency signal waveforms, which limits maximum data throughput. Interwinding capacitance, on the other hand, allows high-frequency common-mode noise to cross the isolation boundary. By optimizing the winding geometry and utilizing integrated common-mode chokes, FiberNova minimizes noise transmission, preserving signal integrity across channels up to 10G Base-T.

Parameter Standard Specs FiberNova Engineered Specs
Turn Ratio (TX/RX) 1:1 / 1:1 Precision matched within ±2%
Isolation Voltage 1500 Vrms Up to 3000 Vrms (Custom option)
Insertion Loss (1-100MHz) -1.2 dB max -0.8 dB typical (Ultra low-loss)
Return Loss (1-30MHz) -16 dB min -18 dB to -20 dB min
Common Mode Rejection -30 dB min -35 dB typical
DC Current Capability 350mA (PoE) Up to 1000mA (IEEE 802.3bt PoE++)

Global Logistics, Compliance & Localized Support

Delivering high-quality components globally with localized support across key regional trade zones.

Target Markets & Export Strategy

Exporting primarily to the United States, Germany, Japan, South Korea, and the United Arab Emirates, we maintain compliance with FCC, CE, VCCI, and safety standards like EN62368. This ensures hassle-free product testing and compliance validation for target markets.

RoHS & REACH Declarations

Our raw material suppliers are vetted through a green procurement database of over 1,200 partners. All LAN magnetic components comply with RoHS directive 2011/65/EU and REACH regulations, avoiding restricted lead or heavy metal compounds in structural matrices.

OEM/ODM Customization Services

Backed by 65 R&D engineers, we offer customization options like unique footprint designs, non-standard winding topologies, specific electrical profiles, or specialized pin dimensions. Last year, we launched 120 new products to address specific client requests.

Localized Applications & Implementation Cases

Delivering specific performance solutions for localized engineering challenges and hardware architectures.

Case 1: German Intelligent Smart Grid & Metering Infrastructure

In European smart metering and substation automation systems, communications cards are installed near high-power distribution lines. Standard components frequently fail due to high transient electrical surges and electromagnetic fields. FiberNova provided high-isolation discrete LAN transformer modules with 3000 Vrms isolation, ensuring uninterrupted data flow and regulatory compliance with strict local grid protection laws.

Case 2: Smart Automotive Manufacturing Lines in Japan

An industrial robotics supplier in Tokyo experienced frame loss due to high EMI from nearby multi-axis servo motors. FiberNova deployed custom SMT 100/1000 Base-T dual-port magnetic filters equipped with enhanced common-mode chokes. This dropped EMI levels below VCCI limits and minimized packet loss in critical automation feedback loops.

Technology Roadmap & Future Outlook

How FiberNova plans to lead network interface magnetics into the next generation of high-speed standards.

2.5G/5G/10G Base-T Migration

As IoT end-devices require more bandwidth, standard Fast Ethernet and Gigabit channels are migrating to Multi-Gigabit networks. We are expanding production on 10G SMT LAN magnetic components to support high frequency bandwidths up to 500 MHz.

Advanced Automated Coplanarity

SMT components need strict co-planarity (within 0.1mm) during solder reflow to prevent dry joints. Our plant updates automatic coil winding and optical vision inspection to eliminate assembly errors in complex high-density motherboard configurations.

High-Power PoE++ Integration

With smart lighting and IoT sensors demanding up to 90W-100W of power over standard Cat6 cabling, our magnetics must prevent thermal runaway. We utilize custom ferrite material compositions to improve thermal dissipation and prevent core saturation under maximum current loads.

Technical FAQ & Design Considerations

Direct technical answers from FiberNova's engineering department on selecting and implementing LAN transformers.

Why is galvanic isolation critical in LAN designs?
Ethernet cabling is routed across walls and buildings, exposing it to differing ground potentials and transient surges (like static discharges or lightning induction). Galvanic isolation (mandated by IEEE 802.3 to be at least 1500 Vrms) blocks high-voltage transients from reaching internal logic circuitry, protecting both the switch IC and operators.
How does PoE impact the performance of LAN transformers?
Power over Ethernet introduces a DC current (up to 1A in PoE++) through the center tap of the transformer windings. This DC current can saturate the ferrite core, which reduces its open-circuit inductance (OCL) and causes signal distortion and packet loss. FiberNova uses high-permeability cores and balanced windings to ensure stable operation even with unbalanced current flow.
What is the difference between SMT and Through-Hole (THT) LAN transformers in automated assembly?
SMT (Surface Mount Technology) components are designed for high-speed pick-and-place assembly and reflow soldering. Through-Hole (THT) versions are used for thick boards, high vibration environments, or applications requiring stronger physical retention. SMT components require strict co-planarity controls to prevent solder failures.
How does FiberNova ensure MSA compatibility and signal integrity?
We use specialized network analyzers and test fixtures to measure parameters like insertion loss, return loss, crosstalk, and common-mode rejection ratio (CMRR) up to high frequencies. Our quality assurance team of 45 QC staff inspects performance on a 100% basis prior to shipment.
What customization options does FiberNova provide for OEM/ODM projects?
We support customization of pin assignments, turn ratios, packaging types, thermal limits, and integrated common-mode filter stages. With our team of 65 engineers, custom prototype runs can be quickly completed to match specific transceiver chip requirements.

Explore More Ethernet & LAN Magnetic Components

Our complete collection of high-frequency telecom modules and quad-port magnetic modules built for industrial environments.

PoE+ 1000 BASE-T Single Port Network Transformer Modules LP6096ANL
PoE+ 1000 BASE-T Single Port Network Transformer Modules LP6096ANL
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Dual Port 1000 BASE-T SMD Current LAN Transformer Modules LP5020NLR
Dual Port 1000 BASE-T SMD Current LAN Transformer Modules LP5020NLR
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10/100 Base-T Quad Port Lan Transformer Modules HN4265VG / HN4267VG
10/100 Base-T Quad Port Lan Transformer Modules HN4265VG / HN4267VG
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HN4049SG / HN4050SG 10 Base-T Quad Port Transformer for Modules
HN4049SG / HN4050SG 10 Base-T Quad Port Transformer for Modules
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10/100/1000 Base-T Single Port Network Lan Transformer Modules HN24018G
10/100/1000 Base-T Single Port Network Lan Transformer Modules HN24018G
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IEEE802.3af 1000 Base-T Single Port Transformer Module QT24A03
IEEE802.3af 1000 Base-T Single Port Transformer Module QT24A03
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1000 Base-T Single Port Through Hole Telecom Magnetics Modules QD18A11
1000 Base-T Single Port Through Hole Telecom Magnetics Modules QD18A11
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100 Base-T Single Port Through Hole Magnetics Transformer BD16A01
100 Base-T Single Port Through Hole Magnetics Transformer BD16A01
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Advanced Manufacturing & QA Testing Facility

Our production facilities maintain strict quality controls, including temperature cycling and high-frequency signal inspection.

All LAN Transformer Products