Engineering Excellence

China Through-hole RJ45 Ethernet Port Connector Manufacturer & Factory

Providing High-Density, Heavy-Duty, and Shielded THT RJ45 Connectivity Solutions for Global Telecom, Automation, and IoT Infrastructure.

Featured Through-Hole RJ45 Solutions

Select high-performance network ports engineered for maximum mechanical anchoring and superior signal integrity.

High-Quality RJ45-5JBN-Y2

High-Quality RJ45-5JBN-Y2 Supplier, Manufacturer

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China SRX29-023-D1

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CE Certification CYZ-A01-01

CE Certification CYZ-A01-01 Suppliers, Manufacturers

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OEM P-1745-G3 Factories

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China SC-PC-W Supplier

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High-Quality TYPE-C Connector-03

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China DC012A-2.0 Copper

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CE Certification SC-PC-K

CE Certification SC-PC-K Factory, Exporter

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Pioneering Hardware Since 2005

Wenzhou Stpete Electronics Technology Co., Ltd.

Wenzhou Stpete Electronics Technology Co., Ltd. is a high-tech enterprise specialized in the R&D, high-precision tooling, vertical manufacturing, and global distribution of premier electronic connectors. Founded in 2005, Stpete has cultivated a stellar reputation across both domestic and international markets, backed by a persistent focus on quality control, rapid customer response, and tailored engineering services.

Our expansive production capabilities allow us to design and manufacture advanced components, including IF Radio-Frequency terminals, FCB network jacks, DC power outlets, USB sockets, AV pin jack boards, and high-performance radiators. Collaborating with tier-one global telecom giants such as Huawei and Hisense, we have proven our capabilities to deliver hardware that meets the absolute highest demands of enterprise networks and consumer electronics.

Stpete Electronics Headquarters
20+
Years Industry Experience
500+
Enterprise Projects Completed
200+
Professional Employees
30+
Technical R&D Experts
Engineering Deep-Dive

Mechanical & Electrical Architecture of Through-Hole RJ45 Connectors

Why THT remains the industry benchmark for high-stress, high-integrity Ethernet connections.

In high-reliability system engineering, the choice of connector mounting technology determines the longevity and performance of the device. While Surface Mount Technology (SMT) has gained popularity for space-constrained low-profile consumer goods, Through-Hole Technology (THT) remains the absolute industry gold standard for rugged, mission-critical physical layer interfaces. Through-hole RJ45 connectors feature lead pins that penetrate deep into pre-drilled printed circuit board (PCB) vias, which are then soldered to pads on the opposite side. This mechanical architecture creates a robust anchor that resists the severe shear forces, mating stresses, and structural strain that network ports face in real-world deployments.

Mechanical Durability

THT contacts absorb insertion, extraction, and bending forces directly through the PCB substrate rather than relying purely on surface-level solder joints. This prevents pad-lifting and mechanical failure over thousands of mating cycles.

Advanced EMI Shielding

Our connectors utilize full-metal brass shields with nickel or tin plating. Integrated grounding tabs connect the chassis shield directly to the PCB ground plane through dedicated through-hole grounding pins, minimizing electromagnetic interference.

Signal Integrity

Featuring high-grade phosphor bronze contacts finished with selective gold plating (up to 50 micro-inches), our ports ensure minimal contact resistance and prevent oxidation, sustaining Gigabit/Multi-Gigabit Ethernet speeds without packet loss.

Information Gain: The Chemistry & Physics of Pin-in-Paste (PiP) Processing

For modern mixed-assembly production lines, Stpete offers Through-Hole Reflow (THR) compatible RJ45 connectors. Utilizing high-temperature liquid crystal polymer (LCP) plastics, these connectors survive temperatures up to 260°C. Engineers can apply solder paste over the PCB vias, insert our through-hole RJ45 pins, and run the assembly through a standard SMT reflow oven. This hybrid approach combines the massive mechanical anchoring of through-hole terminals with the low labor costs and rapid throughput of fully automated surface-mount assembly lines.

Automated Electronics Testing Lab
Versatile Implementations

Localized Application Scenarios

Our through-hole RJ45 connectors are designed and verified for deployment across diverse industrial, commercial, and extreme environment topologies:

  • Industrial Automation & Fieldbus Nodes: Integrated into PLCs, industrial computers, and distributed I/O systems operating under persistent mechanical vibrations and temperature fluctuations.
  • Enterprise Telecommunication & Datacenters: Providing reliable physical interfaces for multi-port rack switches, high-speed routers, server mainboards, and firewall hardware.
  • Smart Grid & IoT Gateways: Deployed in remote outdoor telemetry modules, wind turbine controllers, and sub-stations where exposure to high moisture and thermal cycling is common.
  • Outdoor PoE Surveillance & Wireless APs: Designed with robust internal isolation transformer magnetics to withstand high ESD events and supply stable PoE/PoE+ power.
Supply Chain Advantage

China Supply Chain Resilience & Factory Efficiency

How Wenzhou's industrial cluster allows Stpete to deliver superior cost-efficiency and supply guarantee.

Wenzhou stands as a global hub for electrical and electronic component manufacturing. Being embedded in this rich industrial ecosystem gives Wenzhou Stpete Electronics Technology Co., Ltd. unparalleled access to high-grade raw materials, specialized chemical processors, and highly skilled engineering talent. This geographic advantage translates into direct benefits for our global clientele:

  • In-house Molding & Tooling Design: We utilize CNC machinery and precision high-speed stamping presses. By maintaining control over the molds and stamp dies in-house, we reduce prototyping lead times from weeks to days.
  • Vertical Integration: From metal punching and plastic injection molding to final automated assembly and testing, every manufacturing step is consolidated under our roof to maintain strict quality standards and reduce logistics overhead.
  • Agile Customization: We offer comprehensive OEM/ODM services. Whether you require a custom pin layout, integrated magnetics (MagJack), specific LED color combinations, or high-performance EMI shielding tabs, our engineering team can execute and deliver customized designs rapidly.
Stpete Automated Production Line

R&D Strength

Over 30 technical R&D personnel, an annual R&D investment exceeding 15 million RMB, and holding 21+ R&D patents to drive connector innovation.

Production Capacity

Equipped with state-of-the-art insert molding machines, high-speed terminal stamping, and full-automated assembly lines ensuring high reliability and volume scalability.

Quality Assurance

Every component, from material sourcing to production lines and packaging, undergoes multi-stage inspections using optical measurement systems and electrical testers.

Future Roadmap

Technical Roadmap & Future Outlook

Accelerating connectivity speeds and power-carrying capabilities for tomorrow's networks.

As internet bandwidth requirements move past Gigabit standards, network physical layer interfaces must advance accordingly. Stpete is actively pushing the boundaries of RJ45 engineering, directing our technical roadmap toward several key initiatives:

1. High-Frequency Cat6A & Cat8 Transmission

Developing optimized internal contact routing and advanced shield geometries to support frequencies up to 500 MHz (Cat6A) and 2000 MHz (Cat8), paving the way for reliable 10G and 40G Base-T Ethernet links over copper cabling.

2. Power-over-Ethernet (PoE++) Support

Optimizing our physical contact designs to carry up to 90W/100W of electrical power (IEEE 802.3bt Type 4) without dangerous temperature increases. Special alloy coatings prevent electrical arcing during under-load disconnect cycles.

Global Compliance

Quality Assurance & Compliance Standards

Quality and stability are central to our operations. Our testing laboratory is equipped with network analyzers, salt spray chambers, insulation resistance testers, and mechanical lifetime cycles to guarantee that every batch matches our customers' performance requirements.

Our manufacturing and processing facilities are fully certified and operating in compliance with global frameworks:

  • ISO 9001:2015: International standard for Quality Management Systems, ensuring consistent products and services.
  • ISO 14001:2015: Environmental Management Standard guiding eco-conscious production and reducing industrial emissions.
  • ISO 45001 (formerly 18001): International standards ensuring occupational health and safety across all manufacturing departments.
  • RoHS & REACH: All components use lead-free, non-toxic raw materials, allowing seamless import and compliance in the European Union, Americas, and APAC markets.
Stpete Quality Testing Instrumentation
Stpete Outdoor Team Building Event
Human Capital

Our Team & Corporate Culture

At Stpete, we believe that manufacturing reliability begins with a cohesive and well-supported workforce. Every employee is treated with dignity, and we actively invest in continuing education, technical certifications, and safe, modern working conditions.

To foster team collaboration and communication outside the office environment, we regularly organize activities such as outdoor team-building events. These events are designed to strengthen interpersonal bonds, promote mutual trust, and encourage teamwork through challenging exercises. This supportive atmosphere helps reduce work-related stress, boosts workplace motivation, and translates directly into the careful craftsmanship and quality of our products.

Product Catalog

Industrial Components & Ethernet Sockets

Highly durable connectors engineered for rugged networks and electrical infrastructure.

CE Certified RJ45-59B-2x2

CE Certification RJ45-59B-2x2 Supplier, Manufacturers

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OEM P-2235-G2

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High-Quality RJ45-5366B-1X4-Y1

High-Quality RJ45-5366B-1X4-Y1 Factory, Exporters

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OEM DC005-2.0 Copper Manufacturer

OEM DC005-2.0 Copper Manufacturer, Factories

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High-Quality SRY14-014-P7

High-Quality SRY14-014-P7 Manufacturer, Factories

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OEM SRX27-005-Y1

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OEM P-3542-K1 Supplier

OEM P-3542-K1 Supplier, Factories

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CE Certification DC098

CE Certification DC098 Manufacturers, Exporter

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Factory Component Inventory

Tactile Switches, Power Jacks & Interfaces

Explore our complete range of high-level stamping, CNC machined and automated assembly products.

KFC Tactile Switch 3D9

KFC Tactile Switch 3D9

High Reliability Switch
KFC Tactile Switch 2W4-01

KFC Tactile Switch 2W4-01

Precision Tact Switch
KFC Tactile Switch 2R17-3

KFC Tactile Switch 2R17-3

Tactile Key Switch
KFC Tactile Switch2R10-3

KFC Tactile Switch2R10-3

Automotive Switch Spec
KFC Tactile Switch 2M4-01

KFC Tactile Switch 2M4-01

Microminiature Switch
P-5661-G

P-5661-G

Custom Interface Jack
P-5563-K3

P-5563-K3

Multi-Pin Jack Module
P-3650-K3

P-3650-K3

Custom Shielded Jack
P-5661-K

P-5661-K

Modular Connector Component
P-2235-G2

P-2235-G2

Precision Pin Header
P-2052

P-2052

Dual Row Socket Header
P-1949-A

P-1949-A

Precision Pin Socket
P-3559-K1

P-3559-K1

High Reliability Pin Adapter
DC098

DC098

DC Power Jack
DC080

DC080

Sub-miniature Power Socket
DC0058-2.0

DC0058-2.0

2.0mm DC Power Jack
DC044-2.0 Copper

DC044-2.0 Copper

Heavy Duty Copper Power Jack
DC002T

DC002T

Low Profile DC Input Jack
TYPE-C Connector- 08

TYPE-C Connector- 08

USB 3.1 Type-C Receptacle
TYPE-C Connector- 07

TYPE-C Connector- 07

Sinking SMT/THR Type-C Jack
PJ Headphone Jack-359

PJ Headphone Jack-359

3.5mm Stereo Audio Jack
PJ Headphone Jack-303

PJ Headphone Jack-303

TRS Audio Interface Port
PJ Headphone Jack-372

PJ Headphone Jack-372

Surface-Mountable Audio Socket
PJ Headphone Jack-384

PJ Headphone Jack-384

Automated Assembly Audio Interface
CC-PC-MM-0M3

CC-PC-MM-0M3

High Frequency RF Connector
USBConnector -07

USBConnector -07

Dual Row Type A USB Receptacle
USBConnector -06

USBConnector -06

Vertical Mount USB Type A
DC012A-2.0 Copper

DC012A-2.0 Copper

High Amperage Power Port
USBConnector -05

USBConnector -05

Shielded USB Interface
USB Connector-04

USB Connector-04

Custom Profile USB Connector
PJ Headphone Jack-306-5P

PJ Headphone Jack-306-5P

5-Pin Audio Detection Jack
DC012-2.0 Copper

DC012-2.0 Copper

Copper Shell DC Power Receptacle
DC015-2.0Copper

DC015-2.0Copper

Threaded Locking DC Connector
SRX32-018-P7

SRX32-018-P7

RF Coaxial Adaptor Interface
SRX29-023-D1

SRX29-023-D1

Shielded RF Coaxial Interface
SRX11-020-Y7

SRX11-020-Y7

RF Signal Processing Module Port
Technical Help Center

Frequently Asked Questions (FAQ)

Get authoritative answers on engineering specifications, manufacturing capabilities, and deployment options.

What are the primary differences between Through-Hole (THT) and Surface Mount (SMT) RJ45 connectors?

The main difference lies in mechanical durability and assembly. THT connectors feature terminal pins that pass through the PCB vias and are soldered from the opposite side, offering maximum shear resistance and anchoring strength. SMT connectors are soldered directly onto the PCB surface pads. THT is preferred for industrial infrastructure, test equipment, and heavy-use ethernet ports, while SMT is optimized for space-limited consumer hardware.

Do your through-hole RJ45 connectors support Power over Ethernet (PoE)?

Yes, our complete product family supports standard PoE (IEEE 802.3af), PoE+ (IEEE 802.3at), and we offer specialized designs optimized for PoE++ (IEEE 802.3bt) which support up to 90W-100W of power. These versions feature heavy-gauge copper alloy pins and high-temperature LCP housings to handle the thermal load without compromising signal integrity.

What shielding options are available for EMI mitigation?

We offer both unshielded and fully shielded RJ45 configurations. Our shielded connectors utilize brass housings plated with nickel or tin. They feature multi-point grounding tabs (shield-to-chassis and shield-to-PCB ground pins) to form a Faraday cage, shielding data signals from electromagnetic and radio frequency interference.

Can Stpete manufacture customized connectors or modify pin configurations?

Yes. With our in-house mold shop, high-speed stamping presses, and professional R&D engineering team, we provide comprehensive OEM and ODM support. We can customize pinouts, LED indicators, shell tabs, internal transformer magnetics, and specialized plastic housing dimensions to match your project specifications.