About Us | DOREXS



Your Trusted EMI Filter & Transformer Manufacturer

Company Profile

Founded in 2008, DOREXS is a high-tech enterprise specializing in the research, development, and manufacturing of electromagnetic interference (EMI) filters, committed to providing efficient and reliable EMC solutions to customers worldwide.


Our main products include single-phase EMI filters, three-phase EMI filters, IEC inlet filters, PCB mount filters, DC power supply filters, and feedthrough filters, which are widely used in industrial automation, medical equipment, communications systems, home appliances, and military and aviation applications.


With an experienced R&D team, advanced production lines, and a rigorous quality control system, DOREXS products have achieved multiple international certifications, including UL, CE, ROHS, and ISO9001, fully meeting the high standards of electromagnetic compatibility and safety compliance in the global market. We offer fast delivery, customized technical services, and professional EMC testing and technical support.


Choosing DOREXS means choosing a stable and reliable power filtering solution. We welcome global partners to contact us to create a new future in electromagnetic compatibility!

DOREXS EMI FILTER COMPANY

Our Mission | DOREXS Commitment

DOREXS is dedicated to providing high-quality EMI filter products and professional electromagnetic interference (EMI) solutions for a wide range of industries worldwide, including industrial automation, medical devices, communication electronics, household appliances, military, and aerospace. Through innovative technology, precise manufacturing, and dependable service, we aim to safeguard equipment and empower electromagnetic compatibility.

Why Choose DOREXS

Certified Quality

Certified Quality

All products meet international safety and EMC standards

Custom Solutions

Custom Solutions

Fast and flexible OEM/ODM services to meet unique needs

 R&D Driven

R&D Driven

In-house testing labs and an experienced engineering team

Global Reach

Global Reach

Serving customers across Europe, the Americas, and Asia

Industry Focused

Industry Focused

Solutions tailored for industrial automation, medical devices, data communication, aerospace, and more

Certification & Quality Assurance


DOREXS specializes in high-performance EMI filters and electromagnetic compatibility (EMC) solutions that fully comply with international safety and EMC standards. All our products are certified by UL, CE, ROHS, and CQC, ensuring EMC compliance and safety for global markets. With a CNAS-accredited safety testing laboratory, we conduct comprehensive performance and safety tests during both the R&D and production stages, guaranteeing that every EMI filter meets strict quality requirements before delivery. Backed by a complete international certification system and rigorous quality control, DOREXS delivers reliable, stable, and cost-effective EMC products and solutions worldwide.

Certification & Quality Assurance

Milestones

DOREXS is committed to providing high-quality products and EMI solutions to customers across various industries. Over the past 20 years, we have achieved numerous milestones and are building upon them to meet future challenges.

👉2008: DOREXS was founded

👉2010: First series of single-phase EMI filters launched

👉2013: CE and ROHS certifications obtained

👉2016: Expanded production to meet European and North American demand

👉2021: In-house safety testing lab certified

👉2024: Participated in Germany Electronics Expo (Booth C6.541/6)

Our Factory

We are one of the industry's leading EMI filter manufacturers, focusing on providing comprehensive solutions for electromagnetic compatibility (EMC), project implementation, and EMI filters, pulse group suppression and surge suppression products. Our products cover military and industrial AC single-phase, three-phase and DC power filters, and many models have passed international certifications such as UL, CE, ROHS and ISO9001, and the quality is trustworthy.

DOREXS has efficient production capabilities and can deliver a variety of 0.5A-1000A power filters within 1 week. At the same time, we also provide customers with EMC pre-testing, professional technical support and customized power filter solutions to fully meet the needs of different fields.

Choose DOREXS and experience efficient and reliable EMI filter solutions immediately!

Our Factory

Manufacturing Excellence

Our manufacturing facility is equipped with modern production lines and advanced testing equipment to ensure high-quality output. Every product undergoes strict inspection and compliance testing to guarantee performance and safety.

From single-phase filters to three-phase, IEC inlet, PCB, and DC EMI filters, we offer both standard and custom models ready for fast delivery.

Global Applications

Global Applications

Our EMI filters and transformers are widely used in:

⚙️ Industrial Automation

🏥 Medical Equipment

🌐 Data Communication

✈️ Aerospace & Defense

🏠 Home Appliances

🔧 Custom Engineering Projects

Our Team


Behind every DOREXS product is a team of skilled engineers, production staff, and quality experts committed to delivering superior performance and customer satisfaction. Our service philosophy centers around long-term partnerships, technical support, and continuous improvement.

Our Market

DOREXS has offices in North America, Europe and Asia Pacific, and is committed to providing manufacturing solutions, sales support and quality services to customers around the world.

Our products cover major markets around the world, flexibly adapt to the ever-changing industry needs, and provide customers with efficient and reliable electromagnetic compatibility solutions.

Welcome global distributors to cooperate with us to explore more business opportunities together!

Let’s Build a Better EMC Future Together


Whether you're an OEM, distributor, or system integrator, DOREXS is ready to be your trusted partner in electromagnetic compatibility and power filtering.

What can we do for you?