Chengdu Mengsheng Electronics Co., Ltd.

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Main Products: EMI Filter, EMC Filter, Power Line Filter, Feedthrough EMI Filter

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Company Overview

DOREXS, operated by Chengdu Mengsheng Electronics Co., Ltd., is a professional manufacturer of EMI/EMC filters, transformers, reactors, and customized power quality solutions. Since 2008, we have served equipment manufacturers, system integrators, engineers, and industrial customers worldwide. Our main products include single-phase EMI filters, three-phase EMI filters, IEC inlet filters, DC EMI filters, PCB filters, feedthrough filters, VFD EMI filters, medical low-leakage filters, power entry modules, transformers, and AC/DC reactors. DOREXS products are widely used in industrial automation, VFD and servo systems, CNC machines, PLC control cabinets, medical equipment, EV charging, renewable energy, communication equipment, elevators, HVAC systems, robotics, UPS systems, and inverters. We support OEM/ODM customization for voltage, current, filter topology, attenuation performance, leakage current, terminals, mounting, housing dimensions, cables, labeling, and branding. Our quality management system is based on ISO 9001. Selected products are available with UL, CE, and RoHS compliance options. Products can be tested for electrical performance, hipot, leakage current, insertion loss, and mechanical quality. With over 15 years of EMI/EMC experience, DOREXS provides reliable products, flexible customization, EMC application support, and practical solutions for different industrial requirements.

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EMI Filter

EMC Filter

Power Line Filter

Feedthrough EMI Filter

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Chengdu Mengsheng Electronics Co., Ltd. company overview - view 1

Manufacturer

Business Type
2008

Year Established
Yes

Overseas Office
1,000-3,000 square meters

Factory Size

Company Detail

Transparency is the foundation of our partnership. Below is a comprehensive overview of our operational metrics, from business scale to global market reach, giving you a clear picture of our capabilities.

51 - 100 People Total Employees
1-10 People Sales Staff
5-10 People Quality Inspectors
ISO9001 Product Certifications
US$1.5 Million - US$2.5 Million Annual Export Value
North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe, Central America, Northern Europe, Southern Europe, South Asia, Domestic Market Main Markets
shanghai, shenzhen, guangzhou Port of Shipment
Yes Overseas Office
Signal Filter Main Industry

Quality Control

DOREXS follows strict quality control procedures throughout production. Products can undergo electrical performance testing, hipot testing, leakage current testing, insertion loss verification, and visual inspection before shipment. Our ISO 9001-based quality management system helps ensure stable performance, reliable quality, and consistent production for global customers.
Our Services

DOREXS provides professional services for EMI/EMC filters, transformers, reactors, and customized power quality solutions. Our services include product selection, OEM/ODM customization, EMC application support, sample evaluation, electrical testing, and technical consultation. Based on voltage, current, equipment type, EMC requirements, leakage current, installation space, and terminal configuration, our engineers can recommend suitable products or develop customized solutions. Customization options include rated voltage and current, filter topology, attenuation performance, leakage current, housing size, mounting method, terminals, cables, labeling, and OEM branding. Before shipment, products can undergo electrical performance testing, hipot testing, leakage current testing, insertion loss verification, and visual inspection. DOREXS also supports sample orders, flexible production, fast technical response, and global delivery by sea, air, DHL, FedEx, UPS, and other logistics methods. We aim to provide equipment manufacturers, system integrators, engineers, and distributors with reliable products, efficient service, and practical EMI/EMC solutions.

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Company History

Founded in 2008, DOREXS has focused on EMI/EMC filters and power quality solutions for more than 15 years. Over time, we expanded from EMI filter manufacturing to transformers, reactors, VFD filters, medical filters, and customized EMC solutions. Today, DOREXS serves global industrial customers with reliable products, engineering support, and OEM/ODM services.

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Our Team

DOREXS has a professional team covering R&D, engineering, production, quality control, sales, and customer service. Our engineers have extensive experience in EMI/EMC applications and product customization, while our production and quality teams focus on stable manufacturing and strict inspection. Together, we provide responsive technical support and reliable service for global customers.

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