Technical Data August 2014
3M™ EMI Absorber AB7000 Series
Product Description
3M™ EMI Absorber AB7000 Series consists of a flexible polymer resin loaded with soft metal flakes. An acrylic
pressure-sensitive adhesive allows for easy application.
Applications
3M absorber AB7000 series is typically used for applications requiring EMI control and signal integrity improvement
in the 50MHz 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.
Attenuation and Power Loss
Many factors determine the true attenuation of an electromagnetic interference absorbing material, including shape and
thickness, intimacy of substrate contact, smoothness of application surface, strength and frequency of the EMI signal,
etc. Since 3M absorber AB7000 series is a near field absorber, attenuation characteristics tend to be very application
specific. Power loss characteristics are measured using a 5cm x 5cm square of 3M absorber AB7000 series placed
on a 50Ω microstrip line. The attenuation and noise dampening attained generally increases as the thickness of the
material increases.
Features and Benefits
• Flexible, high permeability magnetic sheets
• One-sided acrylic pressure-sensitive adhesive
• Easily die cut into complex shapes
Property (Test Method) Typical Value
Adhesive Acrylic non-conductive pressure-sensitive adhesive (PSA)
Type of Backing Polymer resin with magnetic metal flake filler
Product Number AB7010 AB7020 AB7030 AB7050
Backing Thickness 0.10mm 0.20mm 0.30mm 0.50mm
Adhesive Thickness 0.03mm 0.05mm 0.05mm 0.05mm
Standard Packaging 210mm x 297mm
Temperature Range -25 ~ 85°C
Surface Resistivity (ASTM-257) 1 x 106 Ω (min)
Initial Permeability1 110
Typical Performance2 Refer to S11 attenuation and power loss graphs
(2)
• Permeability
0
-1
-2
-3
-4
-5
Reflection Loss [dB]
45 100 1000 10000
AB7010
AB7020
AB7030
AB7050
Frequency [MHz]
100 1000 6000
Frequency [MHz]
AB7010
AB7020
AB7030
AB7050
1.0
0.8
0.6
0.4
0.2
0.0
45
Power Loss (PLoss/PIn)
10 100 1000 3000
Frequency [MHz]
1
120
100
80
60
40
20
0
Permeability [µ’]
3M™ EMI Absorber AB7000 Series
3M™ EMI Absorber AB7000 Series Typical Physical Properties
Note: The following technical information and data should be considered representative or typical only and should not
be used for specification purposes.
1 This value measured at 1MHz 3M TM K RD-EMC-AB-02.
2 Attenuation is measured by 7mm coaxial verification kit under short fixed condition. Power loss is measured by a 50Ω microstrip line method.
3M TM K-RD-EMC-AB-01.
(3)
• Reflection Loss
3M™ EMI Absorber AB7000 Series Typical Properties (continued)
Note: The following technical information and data should be considered representative or typical only and should not
be used for specification purposes.
• Power Loss
3M™ EMI Absorber AB7000 Series
0
-1
-2
-3
-4
-5
Reflection Loss [dB]
45 100 1000 10000
AB7010
AB7020
AB7030
AB7050
Frequency [MHz]
100 1000 6000
Frequency [MHz]
AB7010
AB7020
AB7030
AB7050
1.0
0.8
0.6
0.4
0.2
0.0
45
Power Loss (PLoss/PIn)
10 100 1000 3000
Frequency [MHz]
1
120
100
80
60
40
20
0
Permeability [µ’]
0
-1
-2
-3
-4
-5
Reflection Loss [dB]
45 100 1000 10000
AB7010
AB7020
AB7030
AB7050
Frequency [MHz]
100 1000 6000
Frequency [MHz]
AB7010
AB7020
AB7030
AB7050
1.0
0.8
0.6
0.4
0.2
0.0
45
Power Loss (PLoss/PIn)
10 100 1000 3000
Frequency [MHz]
1
120
100
80
60
40
20
0
Permeability [µ’]
(4)
3M™ EMI Absorber AB7000 Series
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Please recycle.
©3M 2014. All rights reserved.
78-8127-8758-4
Electronics Materials Solutions Division
3M Center, Building 225-3S-06
St. Paul, MN 55144-1000
1-800-251-8634 phone
651-778-4244 fax
www.3M.com/electronics
Storage and Shelf Life
The shelf life of 3M™ EMI Absorber AB7000 Series is 12 months from the shipment date from the manufacturing
location when stored in original packaging at 21°C (70°F) and 50% relative humidity.
Regulatory
For regulatory information about this product, contact your 3M representative.
Technical Information
The technical information, recommendations and other statements contained in this document are based upon tests
or experience that 3M believes are reliable, but the accuracy or completeness of such information is not guaranteed.
Product Use
Many factors beyond 3M’s control and uniquely within user’s knowledge and control can affect the use and performance
of a 3M product in a particular application. Given the variety of factors that can affect the use and performance of a 3M
product, user is solely responsible for evaluating the 3M product and determining whether it is fit for a particular purpose
and suitable for user’s method of application.
Limitation of Liability
Except where prohibited by law, 3M will not be liable for any loss or damage arising from the 3M product, whether
direct, indirect, special, incidental or consequential, regardless of the legal theory asserted, including warranty, contract,
negligence or strict liability.
Warranty, Limited Remedy, and Disclaimer
Unless an additional warranty is specifically stated on the applicable 3M product packaging or product literature,
3M warrants that each 3M product meets the applicable 3M product specification at the time 3M ships the product.
3M MAKES NO OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY
IMPLIED WARRANTY OR CONDITION OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED
WARRANTY OR CONDITION ARISING OUT OF A COURSE OF DEALING, CUSTOM OR USAGE OF TRADE. If the 3M product
does not conform to this warranty, then the sole and exclusive remedy is, at 3M’s option, replacement of the 3M product
or refund of the purchase price.
Safety Data Sheet
Please consult Safety Data Sheet prior to use.
