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Clean Power, Enhanced Performance

Transforming Industries with Our EMI Filters, Reactors, and Transformers – Delivering Electromagnetic Compatibility and Power Quality Excellence Across Global Sectors.

EMI Filter & EMI Solutions

The world's leading EMI filter manufacturer. Provides high-performance electromagnetic interference suppression solutions for the industrial, medical, communication, and automation fields to ensure that your equipment operates safely, stably, and in compliance with regulations.

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Trusted Across Critical Industries

Industrial Automation

Maximize uptime. Minimize noise. Optimize control. Our EMI filters ensure stable operation of PLCs, drives, and robotics in harsh environments.

Medical

Precision filtering for life-critical medical systems. Compliant with IEC 60601, ensuring patient safety and signal integrity in imaging and diagnostic equipment.

Home Appliances

Silent power. Cleaner performance. Safer homes. Reduce interference in HVAC, refrigerators, and smart appliances for better EMC compliance.

Data Communications

Secure, interference-free data transmission. Protect servers, routers, and network infrastructure from power-line noise and EMI.

Military Aerospace

Rugged EMI protection for extreme environments. Designed to meet MIL-STD and DO-160 standards for avionics and defense electronics.

Customized EMI Solutions

Engineered to your exact EMC requirements. From concept to certification, we deliver tailored filtering solutions for unique challenges.

Our Product Range

A variety of customized and standard product combinations to meet the needs of solving electromagnetic interference in various industries. Select high-quality electronic raw materials, strictly implement quality inspection, and combine with multiple international certifications to create high-standard products.

EMI/EMC Filters

EMI/EMC Filters

Suppress electromagnetic interference and purify power quality. Available in single-phase, three-phase, and DC variants. Compliant with UL, CE, RoHS.

Feedthrough Filters

Feedthrough Filters

Suppresses high-frequency noise and electromagnetic interference in high-speed signal lines and RF applications. Ideal for medical and aerospace use.

Transformers

Transformers

Changing AC voltage, current, and impedance. Isolation and step-up/down transformers for industrial and medical power systems.

Reactors

Reactors

Limit current, regulate voltage, and improve power quality. Used with VFDs and inverters to reduce harmonic distortion and protect motors.

Insulated Wires

Insulated Wires

Effectively prevent current leakage or short circuit. High dielectric strength wires for internal filter and transformer winding applications.

Power Cords

Power Cords

The preferred option for connecting electrical appliances to a power source. Integrated with EMI filtering for clean power delivery.

Custom EMI Filters

Custom EMI Filters

Designed and manufactured to your exact specifications. Fast turnaround, full compliance support, and global certification assistance.

EMI Test & Compliance

EMI Test & Compliance

Pre-compliance testing, root cause analysis, and mitigation strategies. Ensure your product meets FCC, CISPR, and EN standards.

Company Profile

DOREXS is committed to providing first-class electromagnetic interference solutions to customers around the world and is an industry-leading manufacturer of EMI filters, transformers, and reactors.

With advanced technology and a professional team, we help customers choose the EMI solution that best suits their needs. DOREXS provides transformers and technical support to improve the performance, productivity, and safety of customer applications.

DOREXS is committed to providing customized solutions to protect sensitive equipment and ensure the safety of customers in the medical and industrial fields.

  • 15+ years of EMI filter R&D and manufacturing experience
  • Certified: UL, CE, RoHS, ISO 9001
  • Global customer base across industry, medical, communication, and defense
  • Fast customization and shortened project development cycles
DOREXS Engineering Team

Trusted by thousands of customers worldwide

15+
Years Experience
1000+
Global Clients
50+
Custom Projects/Month
UL, CE, RoHS
Certifications
24h
Avg. Response Time

Frequently Asked Questions

What is an EMI filter?

An EMI (Electromagnetic Interference) filter suppresses unwanted high-frequency noise on power and signal lines, ensuring clean power delivery and compliance with EMC standards.

Why do I need an EMI filter in my system?

EMI filters prevent interference that can cause malfunctions, data loss, or safety issues in sensitive electronics. They are essential for passing EMC testing and ensuring reliable operation.

Can DOREXS create custom EMI filters?

Yes. We specialize in custom EMI filter design and manufacturing, tailored to your voltage, current, frequency, and compliance requirements.

Which industries do you serve?

We serve industrial automation, medical devices, home appliances, data communications, military, aerospace, and renewable energy sectors.

Are your products certified?

Yes. Our products meet UL, CE, RoHS, and ISO 9001 standards. We support global compliance including FCC, CISPR, and IEC regulations.

Get in Touch

For product inquiries, custom solutions, or technical support, visit our official website to contact the DOREXS team.

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