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EMC EMI Signal Filter For AC Signal Lines

Signal Line Filters
January 27, 2026
Category Connection: Signal Line Filters
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Tags:
#RFI EMI Signal Line Filters #Signal Line Filters #Rfi Power Line Filter Single Phase
Brief: Here’s a fast, informative look at what this solution does and how it behaves. This video provides a detailed walkthrough of the 4 Lines EMC EMI Signal Filter for air conditioning signal lines, demonstrating its role in suppressing radio frequency interference and common mode noise. You'll see how this filter operates within an anechoic chamber, its typical circuit configuration, and how it helps simplify shielding to reduce device cost and weight.
Related Product Features:
  • Designed for 4-line air conditioning signal applications with rated voltages of 380V and 440V.
  • Suppresses EMI and RFI noise effectively using a low-pass filter configuration.
  • Rated for DC voltage up to 250V with current options of 3A, 5A, and 10A.
  • Features a pass band of 7kHz, targeting high-frequency noise separation.
  • Common mode choke coil implementation for differential signal and common mode noise management.
  • Helps reduce the need for extensive metal shielding, lowering device cost and weight.
  • Manufactured by a professional EMI filter producer with over 10 years of technical expertise.
  • Complies with international safety standards including UL, VDE, CSA, CE, and CQC.
FAQs:
  • What types of noise does this EMI signal filter suppress?
    This filter suppresses general radio frequency interference (RFI) and electromagnetic interference (EMI), including common mode noise, by utilizing a low-pass filter and common mode choke coil to separate noise based on frequency distribution and transmission mode differences.
  • What are the rated voltage and current specifications for this filter?
    The filter has a rated DC voltage of 250V and is available in current ratings of 3A, 5A, and 10A, making it suitable for various air conditioning signal line applications up to 440V.
  • How does this filter help in reducing device cost and weight?
    By effectively suppressing noise through electronic filtering, this component allows for simplified metal shielding, which traditionally adds cost and weight to electronic devices, offering a more efficient and economical solution.
  • What certifications and standards does this EMI filter meet?
    The filter is designed to meet multiple international safety standards, including UL, VDE, CSA, CE, and CQC, and is produced by a manufacturer with extensive experience in industrial and military application test standards like IEC61800-3 and GJB151A.
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