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.

AB5000 Series

AB5000 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

AB6000 Series

AB6000, AB6000S, and AB6000G 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 Series

AB7000HF (Halogen Free) absorber is 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...

AB5000 Series

ImageManufacturer Part NumberDescriptionShapeThickness - OverallAvailable Quantity
AB5050S datasheet linkTAPE POLYMER RESIN 210X297MMAB5050STAPE POLYMER RESIN 210X297MMTape0.021" (0.55mm)838 - Immediate
AB5050S product page link
AB5030 datasheet linkTAPE POLYMER RESIN 210X297MMAB5030TAPE POLYMER RESIN 210X297MMTape0.014" (0.35mm)279 - Immediate
AB5030 product page link
AB5050 datasheet linkTAPE POLYMER RESIN 210X297MMAB5050TAPE POLYMER RESIN 210X297MMTape0.021" (0.55mm)100 - Immediate
AB5050 product page link
AB5020SHF-210X297 datasheet linkEMI ABSORBER .2MM 210MM X 297MMAB5020SHF-210X297EMI ABSORBER .2MM 210MM X 297MMSheet0.008" (0.20mm)71 - Immediate
AB5020SHF-210X297 product page link
AB5010S datasheet linkTAPE POLYMER RESIN 210X297MMAB5010STAPE POLYMER RESIN 210X297MMTape0.005" (0.13mm)11 - Immediate
AB5010S product page link
AB-5100 X 8.26" datasheet linkTAPE POLYMER RESIN 210MMX10.1MAB-5100 X 8.26"TAPE POLYMER RESIN 210MMX10.1MTape0.043" (1.1mm)22 - Immediate
AB-5100 X 8.26" product page link
AB5010SHF-210X297 datasheet linkEMI ABSORBER .1MM 210MM X 297MMAB5010SHF-210X297EMI ABSORBER .1MM 210MM X 297MMSheet0.004" (0.10mm)38 - Immediate
AB5010SHF-210X297 product page link
AB5030SHF-210X297 datasheet linkEMI ABSORBER .3MM 210MM X 297MMAB5030SHF-210X297EMI ABSORBER .3MM 210MM X 297MMSheet0.012" (0.3mm)49 - Immediate
AB5030SHF-210X297 product page link
AB-5010 X 8.26" datasheet linkTAPE POLYMER RESIN 210MMX14.9MAB-5010 X 8.26"TAPE POLYMER RESIN 210MMX14.9MTape0.006" (0.16mm)2 - Immediate
AB-5010 X 8.26" product page link
AB5100SHF-210X297 datasheet linkEMI ABSORBER 1MM 210MM X 297MMAB5100SHF-210X297EMI ABSORBER 1MM 210MM X 297MMSheet0.040" (1.00mm)0AB5100SHF-210X297 product page link
AB5050SHF-210X297 datasheet linkEMI ABSORBER .5MM 210MM X 297MMAB5050SHF-210X297EMI ABSORBER .5MM 210MM X 297MMSheet0.020" (0.50mm)0AB5050SHF-210X297 product page link
AB-5010 X 8.26" datasheet linkTAPE POLYMER RESIN 210X304MMAB-5010 X 8.26"TAPE POLYMER RESIN 210X304MMTape0.006" (0.16mm)0AB-5010 X 8.26" product page link
AB-5100 X 8.26" datasheet linkTAPE POLYMER RESIN 210X304MMAB-5100 X 8.26"TAPE POLYMER RESIN 210X304MMTape0.043" (1.1mm)0AB-5100 X 8.26" product page link

AB6000 Series

ImageManufacturer Part NumberDescriptionAvailable Quantity
AB6005 datasheet linkTAPE POLYMER RESIN 254X297MMAB6005TAPE POLYMER RESIN 254X297MM350 - Immediate
AB6005 product page link
10X11.7-10-AB6005S datasheet linkTAPE METAL 254X297MM10X11.7-10-AB6005STAPE METAL 254X297MM34 - Immediate
10X11.7-10-AB6005S product page link
AB6005G datasheet linkTAPE METAL 254X297MMAB6005GTAPE METAL 254X297MM51 - Immediate
AB6005G product page link

AB7000 Series

ImageManufacturer Part NumberDescriptionShapeThickness - OverallAvailable Quantity
AB7050HF datasheet linkEMI ABSORBER 210X297MM SHEETAB7050HFEMI ABSORBER 210X297MM SHEETTape0.021" (0.55mm)120 - Immediate
AB7050HF product page link
WX300912408 datasheet linkSHEET POLYMER RESIN 210X297MMWX300912408SHEET POLYMER RESIN 210X297MMTape0.021" (0.55mm)102 - Immediate
WX300912408 product page link
AB7030HF datasheet linkTAPE POLYMER RESIN 210X297MMAB7030HFTAPE POLYMER RESIN 210X297MMTape0.014" (0.35mm)19 - Immediate
AB7030HF product page link
AB7010HF datasheet linkTAPE POLYMER RESIN 210X297MMAB7010HFTAPE POLYMER RESIN 210X297MMTape0.006" (0.16mm)17 - Immediate
AB7010HF product page link
AB7020HF datasheet linkTAPE POLYMER RESIN 210X297MMAB7020HFTAPE POLYMER RESIN 210X297MMTape0.01" (0.25mm)19 - Immediate
AB7020HF product page link
AB7010 datasheet linkTAPE POLYMER RESIN 210X297MMAB7010TAPE POLYMER RESIN 210X297MMTape0.005" (0.13mm)88 - Immediate
AB7010 product page link
AB7030 datasheet linkTAPE POLYMER RESIN 210X297MMAB7030TAPE POLYMER RESIN 210X297MMTape0.014" (0.35mm)6 - Immediate
AB7030 product page link
AB7050HF-1SQ-25 datasheet link3M AB7050HF 1" SQUARES-25/PACKAB7050HF-1SQ-253M AB7050HF 1" SQUARES-25/PACKRectangle0.024" (0.6mm)15 - Immediate
AB7050HF-1SQ-25 product page link
AB7020 datasheet linkTAPE POLYMER RESIN 210X297MMAB7020TAPE POLYMER RESIN 210X297MMTape0.01" (0.25mm)2 - Immediate
AB7020 product page link
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Published: 2014-03-06