LAN Transformer Factories & Exporters

Premium Ethernet LAN Transformers & Magnetic Modules

High-Speed Performance • 100Base-T to 10G Base-T • Complete PoE/PoE+ Compliance

TG1G-S012NZRL 1000 Base-T Single Port PoE+ LAN Transformer

In Stocks 1000 Base-T Single Port PoE+ 24 Pin Ethernet Lan Transformer Modules TG1G-S012NZRL

Technical Specifications

XF-GH-002 10G Base-T 24 Pin Single Port SMT PoE Lan Transformer

10G Base-T 24 Pin Single Port SMT PoE Lan Magnetic Transformer XF-GH-002

Technical Specifications

H6062NL 1000 Base-T 24 Pin Single Port SMD PoE+ Lan Transformer

Huge Stocks 1000 Base-T 24 Pin Single Port SMD PoE+ Lan Magnetic Transformer H6062NL

Technical Specifications

H1164NLT 100 Base-T 40 Pin Quad Port SMD Magnetic Transformer

Huge Stocks 100 Base-T 40 Pin Quad Port SMD Discrete Magnetic Transformer H1164NLT

Technical Specifications

S558-5999-Q2-F 48 Pin Dual Port Magnetics Telecom Transformer

Huge Stocks 100/1000 Base-T 48 Pin Dual Port Magnetics Modules Telecom Transformer S558-5999-Q2-F

Technical Specifications

H81621S 10/100 Base-T SMD Lan Filter Ethernet Transformer

Technical Specifications

NS0013BLF 10/100 Base-T SMD Lan Filter Module Magnetic Transformer

Technical Specifications

LP2064NL THT Dual Port 10/100 BASE-T Telecom Lan Transformer

THT Dual Port 10/100 BASE-T Telecom Lan Transformer LP2064NL

Technical Specifications

2016

Founded & Manufacturing Since

180+

R&D Engineers & Tech Experts

65+

Quality Control Personnel

$8.5M+

Annual Global Export Volume

Novafiber Communications Co., Ltd.

Enterprise Profile & Magnetics Expertise

Founded in 2016, Novafiber Communications Co., Ltd. has established itself as an engineering powerhouse in the global optical and copper networking equipment landscape. Originally focusing on optical modules, Novafiber’s continuous development has led to deep synergy with high-frequency copper-based network components, emerging as a leading supplier of high-performance LAN Magnetic Transformers, pulse magnetics, and telecom modules.

Over our 9+ years of industry experience and 7+ years of export operation, Novafiber has achieved a world-class reputation in data centers, telecom platforms, and industrial networking environments. Operating with a robust network of more than 1,200 supply chain partners, we ensure uninterrupted mass-scale component sourcing, offering reliable OEM/ODM capacities for clients in North America, Europe, Southeast Asia, and the Middle East.

Novafiber Advanced Network Testing Facility

Precision R&D Laboratory testing for Multi-Gigabit Ethernet systems

Automated Electronics Component Assembly Floor

High-precision production line ensuring micro-winding integrity

LAN Transformers: Crucial Component of Ethernet Signal Integrity

High-Frequency Coupling, Galvanic Isolation, and Common Mode Noise Suppression

In any modern Ethernet interface, the physical layer transceiver (PHY) cannot connect directly to the twisted-pair RJ45 line. Standard IEEE 802.3 networks demand reliable signal attenuation, voltage isolation, and protection against electromagnetic interference (EMI). This is where the LAN Transformer—often called the Ethernet Magnetic Module—becomes critical.

Key Technical Functions

1. Galvanic Isolation Protects sensitive physical-layer ICs and networking switches from transient over-voltages, lightning strikes, and potential difference mismatches on long Ethernet lines. They guarantee up to 1500V AC isolation.

2. Impedance Matching The UTP (Unshielded Twisted Pair) copper cable features a characteristic impedance of 100Ω. The LAN transformer performs the crucial job of matching this line impedance to the internal circuitry of the PHY chip (typically 1:1 ratios for differential signals).

3. EMI & CMC Suppression Equipped with built-in Common Mode Chokes (CMC) and autotransformers, these modules suppress high-frequency noise generated by differential transmitters, ensuring compliance with global emission standards such as FCC and CISPR.

Macro Industry Solutions: Supporting Power over Ethernet (PoE, PoE+, PoE++)

With the expansion of smart cities, Wi-Fi 6/7 access points, and remote surveillance networks, power must run over the same Ethernet cable. The magnetic cores of LAN Transformers must be engineered to prevent saturation when handling DC bias currents up to 350mA (PoE), 720mA (PoE+), or 1A (PoE++ / IEEE 802.3bt). Novafiber’s custom LAN transformers, such as the TG1G-S012NZRL and H6062NL, incorporate robust magnetic flux management to maintain signal integrity even under continuous thermal load.

Global Industrial Landscape & Localized Scenario Fit

Regional Infrastructure Demands & Compliance Standards

As exporters serving diverse regions, our solutions are tailored to localized system architectures and strict regional regulations:

North American Market: Dominated by requirements for hyper-scale data centers and corporate enterprise LAN setups. Essential parameters are high bandwidth (10G Base-T) and UL safety ratings.
European Market: Strict CE, RoHS, and REACH directives dictate lead-free SMT processes and environmentally clean raw materials. Core markets include smart factories (Industry 4.0) and automotive Ethernet.
Southeast Asian Hubs: Rapid telecommunications expansions demand cost-effective, high-volume discrete components for domestic routers, GPON/EPON ONU boxes, and local ISP systems.
Middle East Developments: Massive smart grid investments rely on ruggedized networking hardware capable of operating in extreme ambient temperatures without performance degradation.

Quality Control & Network Component Inspections

Rigorous 100% functional testing & high-temperature burn-in rooms

Data Center High Speed Servers Integration

High-density servers utilizing multi-port LAN filters and magnetic connectors

Technical Specification Comparison

Standard	Typical Data Rates	Key Component Feature	Primary Application Fields
10/100 Base-T	10 - 100 Mbps	Low power consumption, 16/24-Pin packages	Smart meters, IP intercoms, legacy networking
1000 Base-T (Gigabit)	1 Gbps	4-channel differential layout, PoE compatibility	Routers, enterprise desktop, CCTV, NVR
2.5G / 5G Base-T	2.5 - 5 Gbps	Enhanced insertion/return loss at high frequency	Wi-Fi 6 APs, mid-range switches, NAS storage
10G Base-T	10 Gbps	Strict crosstalk shielding, low parasitic capacitance	Server NICs, core switches, cloud telecom backplanes

Technology Roadmap & Future Outlook

Advancing Magnetic Materials & Winding Automation

As networks push past 10G toward 25G and 40G over copper, conventional manual wire winding is no longer sufficient. High-frequency signal distortion demands precision automation. The Novafiber engineering division is currently focusing on three key technology frontiers:

Phase 1

Automated Toroidal Winding

Replacing manual operators with CNC micro-wound toroidal rings to assure 100% uniformity in parasitic capacitance.

Phase 2

Planar Transformers

Utilizing multi-layer PCB traces instead of copper coils for ultra-low profile LAN magnetics in blade servers.

Phase 3

Wide Bandgap Core Materials

Introducing next-generation low-loss MnZn ferrite materials optimized for minimal temperature drift.

Phase 4

Ultra-High Speed PoE++

Providing full signal integrity up to 500MHz under 1A DC balance current per pair.

Technical Q&A / Design Guide

Solving Common Integration & Sourcing Challenges

Q1: What parameters dictate the choice between SMD (Surface Mount Device) and Through-Hole (THT) LAN Transformers?

A: Through-hole (THT) packages like the LP2064NL and QD18A11 offer superior mechanical robustness, making them ideal for heavy industrial gear, outdoor network interfaces, or environments subject to strong vibration. SMD configurations (e.g., TG1G-S012NZRL or H6062NL) are standard for high-density PCBs, automated pick-and-place systems, and consumer electronics where board real estate is at a premium.

Q2: How does a LAN transformer handle common-mode noise, and why is this critical for FCC compliance?

A: LAN transformers contain integrated Common Mode Chokes (CMC). While differential signals pass virtually unimpeded, common-mode noise signals (which represent interference picked up equally on both lines of a twisted pair) run into high impedance and are dissipated. This suppression is key to keeping device emissions below limits defined by FCC Part 15 and CISPR 32 Class B.

Q3: Why are the quality assurance standards of Novafiber critical for enterprise telecom equipment?

A: Novafiber maintains a dedicated crew of 65 quality inspection personnel operating with IPC-A-610 standards. We conduct Automated Optical Testing (AOI), high-temperature aging tests, and 100% functional validation of parameters like Inductance (OCL), Insertion Loss, Return Loss, and Crosstalk. This keeps our field failure rates below 50 PPM (parts per million).

Q4: What is the significance of the 350µH open circuit inductance (OCL) spec for Gigabit Ethernet magnetics?

A: The IEEE 802.3 standard mandates a minimum OCL of 350µH under a specific DC bias (usually 8mA) to prevent signal distortion at the lowest frequencies. This ensures that the baseline wander is kept to a minimum, and data transmission remains error-free over the full 100-meter copper link.

Q5: Can Novafiber handle custom turns ratios and pinning configurations?

A: Yes. Backed by our 180 experienced engineers, Novafiber offers complete OEM/ODM custom designs. Whether you require specific turns ratios (e.g., 1:1, 1:1.414, 1:2), unique center tap configurations, or pin-to-pin drop-in replacements for standard components from Pulse, Bel Fuse, or Halo, we can tailor custom footprints within 2-3 weeks.