EMI/RFI Absorbers

3M™ EMI absorbers eliminate noise from a few hundred megahertz to multiple gigahertz frequencies

Image of 3M's EMI/RFI Absorbers3M EMI absorbers are near field absorbers that are specifically designed to eliminate noise from a few hundred megahertz to multiple gigahertz frequencies. They work by absorbing the EMI field generated by today's high-speed electronics, eliminating emissions, crosstalk, and oscillations. They are flexible polymer sheets that are loaded with specific magnetic flake particles and are nonconductive, so they can be directly applied to circuitry and noisy traces without fear of shorting out traces and IC pins. They come in sheet or roll form for easy converting into custom shapes, and once cut, can be placed in tape and reel format for automatic insertion. They are UL94V-0 flame retardant and come in varying thicknesses up to 1 mm.

3M absorbers are currently being used in millions of products around the world, including laptops, cell phones, routers, mobile radios, cameras, PDA's, and many other electronic devices. When shielding is impractical or not quite effective enough, consider using 3M absorbers for similar applications.

AB5000HF and AB5000SHF Series

AB5000HF and AB5000SHF series EMI absorbers consists of flexible soft metal flakes filler in polymer resin with acrylic pressure-sensitive adhesive. This EMI absorber is typically used for applications requiring electromagnetic absorbing performance. It suppresses radiated noise from electrical devices for broadband radio frequency range. These absorbers are commonly used for mobile phones (SAR reduction), computers, digital still cameras, RF blocks, and military equipment for radar avoidance and stealth performance.

Features  
  • Polymer resin and metal flakes filler
  • Acrylic pressure-sensitive adhesive
  • Easy handling and die-cutting
  • RoHS compliant

AB6000HF and AB6000SHF Series

AB6000, AB6000S, AB6000G, AB6000HF, and AB6000SHF series EMI absorbers consist of insulation layers, shielding layers, absorbing layers, and nonconductive pressure-sensitive adhesives. These absorbers are typically used for applications requiring both electromagnetic shielding performance and absorption function. It is useful for electrical devises for broadband radio frequency range, including mobile phones, PDAs, PCs BS/CS tuners, LAN, and medical and military devices.

Features  
  • Insulation layer
  • Pressure-sensitive adhesive (PSA) layer
  • EMI absorption layer
  • EMI shielding layer
  • Easy handling and die-cutting
  • RoHS compliant

AB7000 Series

AB7000 series EMI absorbers consist of a flexible polymer resin loaded with soft metal flakes. An acrylic pressure-sensitive adhesive allows for easy application. The AB7000 is typically used for applications requiring EMI control and signal integrity improvement in the 50 MHz to 10 GHz range. It is a broadband EMI absorber designed to work in near-field applications inside and around electronic devices and assemblies. Common applications include reduction of noise and crosstalk inside mobile electronics, reduction of crosstalk and EMI on ribbon cables and flex cables, reduction of radiated IC noise (applying absorber directly to the noisy IC), damping of radiation and oscillations inside shields and cavities, and increasing signal integrity on high-speed data lines through crosstalk reduction.

Features  
  • Flexible, high permeability magnetic sheets
  • One-sided acrylic pressure-sensitive adhesive
  • Easily die cut into complex shapes
  • RoHS compliant

AB7000HF and AB7000SHF Series

AB7000HF (Halogen-free) and AB7000SHF absorber are typically used for EMI control and signal integrity improvement in the 50 MHz to 10 GHz range. It is a broadband EMI absorber designed to work in near-field applications inside and around electronic devices and assemblies. Common applications include reduction of noise and crosstalk inside mobile electronics, reduction of crosstalk and EMI on ribbon cables and flex cables, reduction of radiated IC noise (applying absorber directly to the noisy IC), damping of radiation and oscillations inside shields and cavities, and increasing signal integrity on high speed data lines through crosstalk reduction.

Features  
  • Low halogen version of AB7000 absorber. Meets guidelines set forth in IEC 61249-2-21
  • Flexible, high permeability magnetic sheets
  • One-sided acrylic pressure-sensitive adhesive
  • Easily die cut into complex shapes

*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.

Tech Tips

EMI/RFI Absorbers
EMI noise in equipment can cause operational problems and also make it difficult to obtain FCC certification of new products. EMI can be generated by numerous electronic devices due to the speed and complexity of modern electronics. Many EMI problems show up when the finalized new product is close to introduction, leaving little time for complex redesign. How can this noise be eliminated or reduced without using complex shielding schemes or redesigning a circuit layout? More...

AB5000HF and AB5000SHF Series

ImageManufacturer Part NumberDescriptionLengthAvailable Quantity
EMI ABSORBER .5MM 210MM X 297MMAB5050SHF-210X297EMI ABSORBER .5MM 210MM X 297MM11.693" (297.00mm)443 - ImmediateView Details
TAPE POLYMER RESIN 210X297MMAB5050STAPE POLYMER RESIN 210X297MM11.693" (297.00mm)234 - ImmediateView Details
EMI ABSORBER 1MM 210MM X 297MMAB5100SHF-210X297EMI ABSORBER 1MM 210MM X 297MM11.693" (297.00mm)462 - ImmediateView Details
EMI ABSORBER .2MM 210MM X 297MMAB5020SHF-210X297EMI ABSORBER .2MM 210MM X 297MM11.693" (297.00mm)72 - ImmediateView Details
EMI ABSORBER .1MM 210MM X 297MMAB5010SHF-210X297EMI ABSORBER .1MM 210MM X 297MM11.693" (297.00mm)74 - ImmediateView Details
EMI ABSORBER .3MM 210MM X 297MMAB5030SHF-210X297EMI ABSORBER .3MM 210MM X 297MM11.693" (297.00mm)39 - ImmediateView Details
EMI ABSORBER 1MM 210MM X 10.1MAB5100HF X 8.26"EMI ABSORBER 1MM 210MM X 10.1M32.810' (10.00m)17 - ImmediateView Details
TAPE POLYMER RESIN 210X304MMAB5100HF X 8.26"TAPE POLYMER RESIN 210X304MM11.969" (304.00mm)27 - ImmediateView Details

AB6000HF and AB6000SHF Series

ImageManufacturer Part NumberDescriptionAvailable Quantity
TAPE POLYMER RESIN 210X297MMAB6005STAPE POLYMER RESIN 210X297MM804 - ImmediateView Details
TAPE POLYMER RESIN 254X297MM10X11.7-10-AB6005STAPE POLYMER RESIN 254X297MM46 - ImmediateView Details

AB7000HF and AB7000SHF Series

ImageManufacturer Part NumberDescriptionLengthAvailable Quantity
EMI ABSORBER .35MM 210MM X 297MMAB7030HFEMI ABSORBER .35MM 210MM X 297MM11.693" (297.00mm)212 - ImmediateView Details
EMI ABSORBER .55MM 210MM X 297MMAB7050EMI ABSORBER .55MM 210MM X 297MM11.693" (297.00mm)7 - ImmediateView Details
EMI ABSORBER .10MM 210MM X 297MMAB7010EMI ABSORBER .10MM 210MM X 297MM11.693" (297.00mm)50 - ImmediateView Details
EMI ABSORBER 210X297MM SHEETAB7050HFEMI ABSORBER 210X297MM SHEET11.693" (297.00mm)265 - ImmediateView Details
EMI ABSORBER .13MM 210MM X 297MMAB7010HFEMI ABSORBER .13MM 210MM X 297MM11.693" (297.00mm)180 - ImmediateView Details
EMI ABSORBER .35MM 210MM X 297MMAB7030HFEMI ABSORBER .35MM 210MM X 297MM11.693" (297.00mm)212 - ImmediateView Details
3M AB7050HF 1AB7050HF-1SQ-253M AB7050HF 1" SQUARES-25/PACK1.000" (25.40mm)3 - ImmediateView Details
EMI ABSORBER .25MM 210MM X 297MMAB7020HFEMI ABSORBER .25MM 210MM X 297MM11.693" (297.00mm)0View Details
Published: 2014-03-06