RJ45 Female Connector & Single Port RJ45 Connector Manufacturers & Suppliers

High-speed copper interconnect solutions designed for optimal signal integrity, robust shielding, and long-term reliability in enterprise networking and industrial IoT.

Product Showcase

Featured Single Port RJ45 Connectors (Part I)

Explore our top-performing modular jacks, integrated magnetic connectors, and high-speed vertical sockets designed for modern communication systems.

Cat5 Cat5e 8 Pin Led Connector RJ45 Magjack

Cat5 Cat5e 8 Pin Led Connector RJ45 Magjack Network Connector Female PCB Connector RJ45 Modular Jack

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1xN 2xN Low Profile Vertical SMT RJ45 Ethernet Port

1xN 2xN Low Profile Vertical SMT 10p8c 8p8c PCB Mount High Speed RJ45 Ethernet Port Female Magjack Conector RJ45 Jack

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Single Port 10G Base-T LAN RJ45 Connector

Single Port 100/1000/2.5G/5G/10G Base-T 10p8c 8p8c Cat5 Cat5e Cat6 Cat6a Modular Network Conector PCB Jack 8P LAN RJ45 Connector

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Tab Down Without LEDs Cat5 Network RJ45 PCB Connector

RJ-001TC1 RJP-003TC1 RJPLB-203TC1 Tab Down Without LEDs Cat5 Network RJ45 PCB Connector

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High Speed RJ45 Magnetic Connectors HY911205C

High Speed RJ45 Magnetic Connectors HY911205C With/Without PoE

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High Speed RJ45 Magnetic Connectors XRJD-S

High Speed RJ45 Magnetic Connectors XRJD-S-21-8-8-Z With/Without PoE

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RJ 45 Connectors with POE RJ45 Ethernet Jack

RJ 45 Connectors with POE RJ45 Ethernet Jack 1-6605833-1 SFE-PRT-08534

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1 Port RJ-45 Magjack Ethernet Magnetics

1470648-1 1 Port RJ-45 Magjack Ethernet Magnetics RJ45 Connector

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Technical Brief & Deep-Dive

Understanding Single Port RJ45 Female Connectors in Modern Telecom

In the rapidly advancing landscape of high-speed telecommunications and data transmission, the single port RJ45 female connector remains the bedrock of physical layer connectivity. As bandwidth architectures transition from Standard Gigabit Ethernet to multi-gigabit speeds (2.5G, 5G, and 10G Base-T), physical hardware components must adapt. The interface between the PCB and the transmission line requires meticulous signal integrity preservation, robust electromagnetic interference (EMI) protection, and mechanical stability.

A single port RJ45 female connector is not simply a mechanical port; it is an optimized electrical system. When integrated with internal magnetics (known as Magjacks), these components act as isolation transformers, shielding the delicate PHY silicon chips from voltage surges, common-mode noise, and ESD strikes. By isolating external loops, they secure high-speed links in complex electrical environments.

The Anatomy of Integrated Magjacks & Magnetic RJ45 Sockets

Traditional non-magnetic RJ45 connectors require discrete magnetic modules placed on the PCB. However, modern dense network applications favor integrated magnetics (Magjacks). Our high-performance Magjacks pack the following core structural components into a single space-saving interface:

  • Toroidal Transformer Cores: Specially designed for low insertion loss, high return loss, and consistent performance across a wide band of frequencies (up to 500 MHz for Cat6a / 10GbE systems).
  • Common Mode Chokes: Crucial for filtering out electromagnetic interference (EMI) before it passes to the PHY chip, ensuring compliance with strict global standards like FCC Part 15 Class B and EN55022.
  • Integrated Resistors & Capacitors (Bob Smith Termination): Balances common-mode voltages and terminates unused pairs to optimize signal integrity and prevent internal resonance.
  • Shielding Options: Nickel-plated or brass-copper shields with multiple grounding tabs (EMI fingers) to establish low-impedance ground loops to the system chassis.
Manufacturing Excellence

China Core Factory Advantages & Supply Chain Resilience

How localized specialized engineering, raw material ecosystems, and scale drive the quality-to-cost advantage for global networks.

1. Unparalleled Industrial Cluster Dynamics

Our Chinese manufacturing facility operates within a dense local ecosystem of precision metal stamping, injection molding, and component manufacturing. This localized network ensures that high-grade phosphor bronze, LCP plastics, and nickel plating are sourced at speed, shortening procurement lead times significantly.

2. Scalable High-Precision Customization

Backed by modular tooling systems and state-of-the-art SMT assembly lines, we easily configure products to exact specifications. Whether you require vertical orientation, low-profile SMT mounting, custom LED colors, or specific POE pin definitions, our team supports full design iterations.

3. Strict Standardized Quality Controls

Operating strictly under ISO 9001 and verified internally for mechanical reliability, our quality inspectors monitor raw materials to finished products. We utilize high-resolution optical testing, automated contact tension measurements, and simulated aging environments to achieve zero-defect delivery.

Transolix: Partnering for Global High-Performance Interconnects

Transolix is a professional manufacturer specializing in high-performance connectivity solutions for global data centers, telecom operators, and enterprise networks. With robust engineering capabilities and scalable production capacity, Transolix delivers reliable, high-speed, and cost-effective fiber optic and copper networking connections. Let's look at the numbers that define our capabilities:

2016
Registered Date
320㎡
Building Area
USD 8-15M
Annual Export Revenue
11 Yrs
Industry Experience
128
R&D Engineers

Advanced Quality Assurance System

Our product inspection methods incorporate automated optical testing, eye diagram analysis, aging tests, and 100% final performance verification. Supported by 42 quality control professionals, we ensure compliance with international certifications and strict internal reliability parameters.

Design Innovation & Supply Chain Resilience

With 860 certified upstream suppliers including critical chipsets, high-grade plastics, and custom optics, we secure supply chains. Last year, our team launched 86 new product models, proving our engineering agility in high-speed optical and copper transmission.

Industry Development Trends & Power Over Ethernet (PoE) Progression

The growth of edge computing and the Internet of Things (IoT) has caused a surging demand for copper networking interfaces that deliver power alongside high-speed data. Power over Ethernet (PoE) technology has developed from the standard IEEE 802.3af (15.4W) to the modern IEEE 802.3bt (PoE++ Type 4), which transmits up to 90W of power over standard balanced twisted-pair cables.

This continuous increase in power density creates challenges for RJ45 modular jack designs:

  • Thermal Management: Higher current flowing through small copper contacts increases thermal loads. We address this by using high-conductivity phosphor bronze materials and optimizing internal ventilation structures inside the single-port housing.
  • Arcing Protection: Plugging and unplugging cables while current is flowing causes electrical arcing at the contact interface, which can degrade plating. Our contacts are designed with optimized spring geometry so that the contact surface during physical mating is separated from the electrical interface during data transmission.
  • Impedance Matching: Maintaining stable differential impedance (100 Ohms) under PoE load changes requires precision spacing of internal wire routings.

Global Enterprise Procurement Demands

Global network integrators and hardware developers require more than catalog parts. They need partners who can offer strategic engineering support:

  • Regulatory Compliance: Connectors must comply with RoHS, REACH, CE, and UL flammability standards (UL94-V0).
  • Durability (Mating Cycles): Standard requirements demand at least 750 mechanical mating cycles without contact resistance rising above 20 mΩ.
  • Signal Simulation: Access to 3D CAD step files and simulation data (HFSS modeling) to predict board-level EMI issues.
Macro Industry Solutions

Localized Application Scenarios

From standard networking to harsh industrial and high-speed data center interfaces.

1. Industrial Automation (IIoT)

Factory environments present challenges like vibration, dust, and electrical noise. Here, heavy-shielded IP67/IP68 waterproof pass-through connectors protect critical PLC, robot controller, and sensor interfaces from moisture and dirt.

2. Telecom & Network Gateways

Integrated magnetic RJ45 connectors are standard in high-density enterprise routers, access points, and residential gateways. By placing the magnetic components inside the port, designers save valuable PCB space near high-speed processors.

3. High-Density Servers & Data Hubs

In modern dense server rooms, low-profile and vertical SMT mounting methods allow connectors to fit on compact carrier boards, supporting reliable out-of-band management links.

Product Showcase

Featured Single Port RJ45 Connectors (Part II)

Explore our full line of shielded modular jacks, vertical mounting options, and magnetic RJ45 connectors.

Single Port Ethernet Female Jack RJ45 Connector

Single Port Ethernet Female Jack RJ45 Connector 7499161005A

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Customized Connecteur Rj 45 Keystone Modular

Customized Connecteur Rj 45 Keystone Modular Pcb Jack Waterproof Ethernet Rj45 Pass Through Female Connectors

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KLU1S041F LF Ethernet RJ45 Modular Female PCB Jack

KLU1S041F LF Ethernet RJ45 Modular Female PCB Jack for Networking Solutions

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PCB Mounting Shielded Modular Jack Ethernet

J00-0045NL PCB Mounting Shielded Modular Jack Ethernet RJ45 Connector

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JFM38U1G-21M4-4F RJ45 Modular Jack

JFM38U1G-21M4-4F RJ45 Modular Jack

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Ethernet RJ11 RJ45 Connector Plug

Ethernet RJ11 RJ45 Connector Plug HY951140A

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RJ45 Connector J0011D21NL

Hot Offer Original and New RJ45 Connector J0011D21NL

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HR851140A Magnetic RJ45 Modular Jack Female

HR851140A Magnetic RJ45 Modular Jack Female RJ45 Connectors With Shield Boot

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R&D Centers & Production Lines

Manufacturing and Quality Control Operations

A look inside our manufacturing processes, including clean rooms, signal analysis stations, and automated packing operations.

Technical Knowledge Base

Frequently Asked Questions (FAQ)

Answers to common engineering and sourcing questions about single port RJ45 female connectors.

What is the difference between an integrated RJ45 magnetic connector (Magjack) and a standard RJ45 modular jack?

An integrated RJ45 magnetic connector (Magjack) contains internal components—including isolation transformers, common mode chokes, and termination resistors—inside the connector's metal shielding. This configuration isolates EMI and protects transceiver chips from voltage spikes directly at the port, saving PCB space. A standard modular jack lacks these internal components, meaning designers must place discrete magnetics on the PCB.

How does mounting (SMT vs. Through-Hole) affect RJ45 female connector performance?

Through-Hole Technology (THT) uses solder pins that pass through the PCB, providing high mechanical strength that helps withstand frequent cable insertions and extractions. Surface Mount Technology (SMT) or Pin-in-Paste (PIP) solutions are preferred for highly automated assembly lines and double-sided PCBs, though they may require additional mechanical tabs to handle mechanical stress.

What shielding parameters are critical for preventing EMI in 10G Base-T applications?

For 10G Base-T systems, shielding must extend over the entire connector housing with minimal gaps. The shield should feature ground tabs (EMI fingers) that contact the chassis to keep ground loops short. Contact plating thickness (typically 30u" to 50u" gold plating) and internal PCB traces designed for differential impedance matching are also essential to meet IEEE 802.3an requirements.

Can you provide customized pin layouts or integrated LED indicators?

Yes. We offer customized mechanical footprints, pin layouts, LED configurations (single color, bi-color, or multi-color), and various shielding configurations. Our R&D team can customize internal transformer designs to match specific transceiver IC requirements.

All Single Port RJ45 Connector Products