3M™ EMI Absorber AB7000HF Series

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Target absorbing performance from 800 MHz - 2.5 GHz

Broad operating frequency of 300 MHz to 4 GHz

Polymer resin sheets are flexible for consistent coverage

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Kiemelések
  • Target absorbing performance from 800 MHz - 2.5 GHz
  • Broad operating frequency of 300 MHz to 4 GHz
  • Polymer resin sheets are flexible for consistent coverage
  • Filler consisting of soft metal flakes absorb noise into the polymer
  • Acrylic pressure sensitive adhesive makes for fast, simple application
  • Removable liner makes material easy to handle
  • Die-cuttable into shapes for precise fit
  • Halogen-free*
  • Acrylic pressure-sensitive adhesive allows for easy application
  • Improved lower frequency absorber vs. the AB5000 or AB5000S series (@ < 1 GHz)
  • Reduce EMI and RF noise in electronic systems
  • Apply to noisy traces, IC's and reflective surfaces in an enclosure

The 3M™ EMI Absorber AB7000HF Series is a high-permeability magnetic EMI absorber for near-field applications. It consists of flexible polymer resin loaded with a filler of soft metal flakes for excellent absorption at frequencies from 300 MHz to 4 GHz. Target frequency range– the “sweet spot” for peak performance – is 800 MHz - 2.5 GHz. An acrylic non-conductive pressure-sensitive adhesive on one side makes applying the material easy and efficient. These sheet type EMI absorbers are excellent for absorbing near-field EMI inside and around electronic devices and assemblies.

  • Icon of a sheet of material being peeled off of a stack, the icon is a blue line illustration with a white background.
    Easy Application
  • Icon of an antenna with signals radiating from the top, the icon is a blue line illustration with a white background.
    Improved Signal Integrity
  • Icon of a material with various thicknesses, the icon is a blue line illustration with a white background.
    Multiple Thicknesses
  • Icon of waves stuck between two substrates, the icon is a blue line illustration with a white background.
    Noise Suppression
Cross-section illustration of the product construction showing the three layers of Polymeric resin with magnetic flake filler, acrylic non-conductive adhesive, and poly-coated kraft (PCK) release liner.
Product construction

3M™ EMI Absorber AB7000HF Series is available in five thicknesses. Absorber thickness ranges from 0.03 mm to 0.50 mm. Adhesive thickness ranges from 0.01 mm to 0.05 mm.

  • Product performance

    3M™ EMI Absorber AB7000HF series has an absorbing response to high frequency magnetic noise up to 4 GHz as a result of high magnetic loss (μ’’) peaking at ~ 300 MHz and low stored energy (μ’) at higher frequencies.

  • A graph of product performance, the x-axis is frequency and y-axis permeability. As the frequency increases, the permeability decreases.

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*Halogen-free is defined as having maximum 900 ppm bromine, maximum 900 ppm chlorine, and/or maximum 1500 ppm total bromine and chlorine, per IEC 61249-2-21.