【Solution】Ethernet Hardware Design-Systematic Solution

In today's digital age, Ethernet, as the dominant wired local area network (LAN) technology, has become the cornerstone of global information exchange. From smart homes and enterprise interconnection to industrial automation and hyperscale data centers, Ethernet infrastructure drives the efficient and stable operation of critical services.

VOOHU is dedicated to providing end-to-end Ethernet hardware design solutions, encompassing system-level component supply, custom development support, and in-depth technical capabilities. These solutions are supplemented by evaluation demos and comprehensive test reports to accelerate the entire process from customer product design to mass production.

Ethernet Solution Topology-Voohu Electronics

To help customers understand solution details and quickly match their design needs, the VOOHU official website (WWW.VOOHU.CN) has established a dedicated Industry Solutions section. Click Industry Solutions > Solutions > EtherNet to access complete solution documentation for each scenario (including circuit topology, component selection lists, performance parameter tables, standard circuit designs, etc.). We provide technical manuals for different fields, as well as actual measured data and optimization suggestions for solution implementation. Whether it's early project approval, mid-term technology selection, or later design adjustments, the official website's reference materials provide precise support for customers, shortening development cycles and efficiently assisting project implementation.

I. Hardware Types for Ethernet Design


(I) RJ45 Connector
The RJ45 connector is a key component for Ethernet physical connectivity, providing stable physical connection and signal transmission for Ethernet communications and serving as the first line of defense for Ethernet electrical protection. Our extensive selection of RJ45 connectors fully meets customer customization needs, ensuring flexibility in choosing the right connector for your application.
(2) Lan Transformers
Lan transformers are the core magnetic modules that enable Ethernet signal transmission. They not only incorporate traditional transformer functions but also integrate common-mode inductors to achieve key functions such as high-voltage signal isolation, impedance matching, and noise suppression. Voohu's lan transformers utilize advanced design to ensure stable and reliable signal transmission, and we offer a wide variety of product options.
(3) New Chip LAN Transformer
To meet the lightweight and highly integrated requirements of Ethernet, we have introduced a new chip LAN transformer. This design replaces the traditional LAN transformer with an equivalent circuit, consisting of an X'fmr main transformer and a CMC common-mode inductor. All components can be automatically manufactured, and SMD packaging significantly improves patch efficiency. The Chip LAN design is more simple and efficient, making it suitable for the compact size requirements of modern Ethernet applications.
Core Advantages:
· Volume reduction >40% (optimized PCB footprint)
· Supports multiple processes, optimizing production processes
· Automated production processes, significantly shortening delivery times
Typical packages:
· X'fmr: 5335 / 4532 / 3532
· CMC: 2012

(IV) Integrated RJ45 (ICM)
The integrated RJ45 (ICM) is a solution that combines a connector and a network transformer. This design simplifies PCB design and improves overall performance. It typically also includes the necessary Bob Smith circuitry for impedance matching, surge protection, and common-mode suppression. The ICM's more compact design is particularly suitable for space-constrained applications.
(5) ESD Protection
Ethernet is an isolated interface, and its inherent isolation voltage is insufficient to prevent damage from electrostatic discharge (ESD). Therefore, ESD protection is essential. We provide high-quality TVS arrays to effectively prevent damage to delicate components. These protection devices offer fast response and high reliability, ensuring safe operation of equipment in a variety of environments.
TVS Array Core Parameters:
IEC 61000-4-2 Level 4 Protection (±30kV Air/±30kV Contact)
ESD Clamping Voltage < 30V (8/20μs)
Ultra-Low Parasitic Capacitance (< 1.5pF typ.)
Protection Range: ±8kV to ±30kV

(VI) Ethernet PHY Chip
The Ethernet network port PHY is the core processing chip for a device's network port. It performs critical tasks such as digital-to-analog conversion, protocol execution, and link management. Our PHY chips utilize advanced process technology to ensure high performance and low power consumption. Whether it's Gigabit Ethernet or 100M Ethernet, we can provide the corresponding PHY chip to meet the needs of different customers.

2. Voohu's Value Commitment - Choose Voohu, Truly Reliable

Voohu's systematic solutions go beyond simply matching materials. We offer three key value propositions:

1. Customized Service: We provide customized hardware design and manufacturing services based on specific customer needs. Whether it's a specialized application scenario or personalized functional requirements, we can meet them.
2. One-Stop Procurement: Customers can purchase all necessary hardware products from us, including RJ45 connectors, network transformers, ESD protection devices, and Ethernet port PHYs. One-stop procurement is not only convenient and fast, but also reduces costs.
3. Technical Support: We offer comprehensive technical support, from hardware selection to circuit design, from testing and verification to production and manufacturing. Our technical support team, comprised of experienced engineers, can quickly respond to customer needs and resolve issues.

From its founding in 2018 to its international expansion in 2025, Voohu Electronics has become a reliable partner to over 1,000 businesses thanks to its commitment to quality, competitive pricing, attentive service, and reliable delivery.

If you're also looking for a communication electronic component supplier that's hassle-free, cost-effective, and hassle-free, consider Voohu. After all, with over 100 publicly listed companies, you can't go wrong.


"Choose Voohu. Truly reliable." This isn't just a slogan; it's the trust of over 1,000 customers over the past eight years.