DAA1 Series Single Phase EMI Filter | Power Line Noise Suppression | 1A-10A

TheDAA1 single phase EMI filter is a general-purpose single-phase single-pole filter.This series of power line noise filters uses inductors, capacitors, filters and other components to filter the power line. By blocking high-frequency current on the power line, it reduces the spread of electromagnetic interference, effectively protects electronic equipment, and provides clean , the purpose of stable power supply.

This series of EMI filter is commonly used in fields such as household appliances (e.g., refrigerators, washing machines), consumer electronics (e.g., TVs, audio systems), medical devices (e.g., diagnostic equipment), and industrial automation systems (e.g., CNC machines, robotics).This high-performance filter helps your equipment pass stringent EMC tests while maintaining stable operation.

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Key Features 

• Excellent attenuation of common-mode and differential-mode noise
• Low leakage current for safety-critical applications
• Compact design, easy to install in control panels
• Wide operating temperature range: -25°C to +85°C
• Rated current up to 10A
• A variety of connection methods to choose from, such as power cords and insert
• Optional medical version
• Customizable options available for specific requirements
• Comply with cUL, CE, ROHS, CQC related safety certifications.

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Technical Parameters

Specification	Details
Model：	DAA1
Application：	Industrial / Consumer Electronics
Phase：	Single-phase
Structure：	Single-stage
Max operating voltage：	275VAC
Rated Current：	1A - 10A
Leakage Current：	≤ 0.5mA
Withstand voltage level：	2150VAC
Frequency Range：	50/60Hz
Operating Temperature：	-25°C ~ +85°C
Certifications：	UL, CQC, CE
Dimensions (mm)：	44 × 29 × 22 (W×H×D)
Weight(g)：	95
Connection Type：	Insert/Power cord

 

     

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Product Pictures

Detail Picture

Overall Dimension（±1mm)

 

 

Circuit Diagram

Insertion Loss Curve

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Approvals and Compliances 

This DAA1 series single phase EMI filter  has passed UL, CE and RoHS certifications.

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Typical Applications

• Fire protection systems
• Industrial control devices
• PLCs and automation equipment
• Power supply modules
• Communication devices
• Medical power systems (optional low-leakage version)
• Lighting equipment
• LED drivers
• Industrial and architectural lighting
• Consumer appliances

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Technical Advantages

• Conducted noise reduction up to 60 dB
• Effective in 150 kHz – 30 MHz frequency range
• Anti-interference performance for harsh industrial environments
• Optimized internal circuit to reduce harmonic distortion
• Reliable insulation and long-term stability

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Why Choose DOREXS ?

1. Over 15 years of EMI filter manufacturing experience
2. Fast global delivery and stable supply chain
3. Engineering support for installation and customization
4. Competitive pricing compared with leading brands
5. Flexible MOQ, suitable for small and large projects 

 

 

DOREXS offers more power line noise filter options, please contact us.

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FAQ

Installation Instructions

• Connect the filter in series with the power line
• Keep cable length short to minimize parasitic inductance
• Ensure proper grounding
• Avoid routing parallel to noise-sensitive signals

Product Selection Guide

• Rated current: 1A ~ 10A
• Voltage rating: 115/250V AC
• Leakage current requirements for safety
• Mounting type: chassis or panel
• Environmental conditions and EMC test targets

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7. Can DAA1 filters be used in medical devices?