DEA4-INSERT AC NOISE FILTER
Model No: DEA4 Insert

DEA4-Insert EMI Filter | 3A-20A Single Phase AC Power Noise Filter

Rated Current：3A-20A

Single Phase Dual-stage

High Performance EMI Filter

Certificate：cUL,CQC,CE,Rohs

Can be customize according to customer requirements.

Support free samples
Quantity :
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TheDEA4 EMI filter is a high-attenuation single-phase power line filter designed to selectively eliminate noise signals within a specific frequency range.  It offers powerful high-frequency interference suppression capabilities, providing clean power to electronic devices.
The DEA4 AC power noise filter consists of inductors and capacitors, with a maximum current of up to 20A and a maximum voltage of up to 250VAC. It features a two-stage filtering design, offering excellent differential mode and common mode interference suppression characteristics, making it suitable for complex electromagnetic environments such as industrial equipment, home appliances, LED drivers, and automation equipment. The filter supports various connection methods, offers customizable parameters, and provides free samples for testing and evaluation.

Key Features

  • High attenuation double-circuit design enhances suppression of power line noise (common mode + differential mode).
  • Wide rated current range: 3A, 6A, 10A, 20A — meeting the load requirements of different equipment.
  • Rated voltage 115/250 VAC, 50/60 Hz, suitable for mainstream power standards worldwide.
  • Strong suppression of both common mode and differential mode interference in the 10 kHz–30 MHz (or 100 kHz–30 MHz) frequency band.
  • Supports multiple connection methods/terminal types: Insert type, bolt/terminal type — flexible installation, adaptable to different equipment structures.
  • Low leakage current (≤ 0.5 mA or <2.0 mA), suitable for systems with high safety and EMC requirements.
  • High insulation resistance (>50 MΩ @ 500VDC), strong voltage withstand capability (e.g., 1500 VDC line-to-line, 2150 VAC line-to-ground) — high reliability, stable operation even in harsh electrical environments.
  • Certified by CUL/CE/ROHS/CQC, etc. — meeting international safety and environmental standards.
  • Customizable parameters — current, terminal type, quantity, etc. can be customized according to customer needs.

Technical Specifications

 
Specification
Details
Model：
DBA4-Insert
Application：
Industrial / Commercial
Phase：
Single-phase
Structure：
Two-stage
Max operating voltage：
275VAC
Rated Current：
10A - 30A
Leakage Current：
≤ 0.5mA
Withstand voltage level：
2150VAC
Frequency Range：
50/60Hz
Operating Temperature：
-25°C ~ +85°C
Certifications：
UL, CQC, CE
Dimensions (mm)：
92 × 51 × 30 (W×H×D)
Weight(g)：
100
Connection Type：
Bolt/Insert/Power cord
 
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Note: For specific parameters such as leakage current, connection method, and dimensions, please refer to the latest datasheet/product specifications, or contact us for customized information. 

Technical Advantages

  1. Dual-circuit filtering design provides more stable filtering and stronger attenuation, effective even in high-power and high-noise environments.
  2. Optimized internal filtering network covers the frequency range of 10 kHz–30 MHz (or 100 kHz–30 MHz), effectively suppressing both common-mode and differential-mode interference.
  3. High insulation resistance and voltage withstand capability ensure safe and stable operation of the equipment under high voltage and surge conditions.
  4. Flexible connection methods (plug-in / bolt / terminal) adapt to different equipment structures; customization is available to meet specific user needs.

Product Pictures

Detail Picture

DEA4 Detail Picture

Overall Dimension（±1mm)

DEA4 INSERT Overall Dimension（±1mm)

Circuit Diagram

DEA4 INSERT Circuit Diagram

Insertion Loss

DEA4 EMI Filter insertion loss common-mode and differential-mode curve
 

Customization Options 

Cable length and interface type can be customized according to customer needs. DOREXS can also customize EMI filter parameters and appearance dimensions according to customer equipment requirements. At DOREXS, everything is based on customer requirements and we are committed to creating exclusive EMI solutions for customers. 

Approvals and Compliances 

Approvals and Compliances 

Applications

  • Electrical and electronic equipment
  • Consumer appliances
  • Household equipment
  • Medical equipment
  • Office automation equipment
  • Data communication equipment
  • Industrial equipment and automation systems
  • LED drivers and lighting systems
  • Test/measurement instruments
  • Power conversion systems and power supplies
 

Installation Instructions

  • Connect the DEA4 filter in series with the AC power input line — ensuring that power line noise is filtered out.
  • Minimize the wiring length after the filter to reduce parasitic inductance and maintain optimal filtering performance.
  • If the system has EMC or safety requirements, ensure proper grounding.
  • Avoid routing sensitive signal lines parallel to power lines to prevent noise coupling interference.
  • Select the appropriate terminals/connection method (plug-in/bolt/terminal) based on the equipment structure and installation requirements.

Selection Guide

When selecting a DEA4 EMI filter, please consider the following points:
  1. Rated Current — Choose 3A, 6A, 10A, or 20A based on the maximum current of your equipment.
  2. Connection/Terminal Type — Plug-in type is suitable for PCB/chassis mounting, while bolt/terminal type is suitable for wiring/industrial installation environments.
  3. Leakage Current and Safety Requirements — If the system is sensitive to safety/interference, choose a low-leakage model.
  4. Operating Environment and Load Conditions — Confirm that the voltage, power frequency, ambient temperature, etc., meet the filter specifications.
  5. Customization Service — If standard specifications do not meet your needs, please contact us to customize current, terminals, wire length, quantity, etc.

FAQ

1.Can I request custom specifications for DEA4 filter?

Yes. We support customization of parameters such as rated current, connector terminals, and cable length. Please contact us to provide your detailed requirements.

2. How do we ensure product quality?

Our EMI filter products have UL, CE, ISO9001 and ROHS certifications, and each product will be subject to final inspection before leaving the factory.

3. What is the leakage current of DEA4 filter?

Standard models have a leakage current of ≤ 0.5 mA (some versions < 2.0 mA), suitable for equipment with high safety and EMI requirements.

4. What services can we provide?

Delivery terms: FOB, CFR, CIF, EXW, FCA
Payment currency: USD, EUR, RMB
Payment method: T/T, L/C, MoneyGram, Western Union, Cash

5. What products can I buy from you?

EMI/EMC filters, transformers, reactors, insulated wires and power sockets, etc.