Technical Data
June 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.
Features and Benefits
• Flexible, high permeability magnetic sheets
• One-sided acrylic pressure-sensitive adhesive
• Easily die cut into complex shapes
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.
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.
Property (Test Method)
Adhesive
Type of Backing
Product Number
Backing Thickness
Adhesive Thickness
Standard Packaging
Temperature Range
Surface Resistivity
(ASTM-257)
Initial Permeability
1
Typical Performance
2
1
2
Typical Value
Acrylic non-conductive pressure-sensitive adhesive (PSA)
Polymer resin with magnetic metal flake filler
AB7010
0.10mm
0.03mm
AB7020
0.20mm
0.05mm
AB7030
0.30mm
0.05mm
AB7050
0.50mm
0.05mm
210mm x 297mm
-25 ~ 85°C
1 x 10
6
Ω (min)
110
Refer to S
11
attenuation and power loss graphs
This value measured at 1MHz 3M TM K RD-EMC-AB-02.
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.
• Permeability
120
100
Permeability [µ’]
80
60
40
20
0
1
10
100
1000
3000
Frequency [MHz]
1.0
(2)
)
0.4
0.2
3M
™
EMI Absorber AB7000 Series
AB7010
AB7020
AB7030
AB7050
3M
™
EMI Absorber AB7000 Series Typical Properties
(continued)
0.0
be used for specification purposes.
45
100
1000
6000
Note:
The following technical information and data should be considered representative or typical only and should not
Power
Frequency [MHz]
• Reflection Loss
120
0
100
-1
80
-2
60
-3
40
20
-4
0
-5 1
45
AB7010
AB7020
AB7030
AB7050
100
10
Permeability [dB]
Reflection Loss[µ’]
Frequency [MHz]
Frequency [MHz]
100
1000
1000
3000
10000
• Power Loss
1.0
0.8
0.6
0.4
0.2
0.0
45
Power Loss (P
Loss
/P
In
)
AB7010
AB7020
AB7030
AB7050
100
1000
6000
Frequency [MHz]
(3)
0
3M
™
EMI Absorber AB7000 Series
Storage and Shelf Life Conditions
The shelf life of 3M™ EMI Absorber AB7000 Series is 24 months from the date of manufacture when stored in original
cartons at 21°C (70°F) and 50% relative humidity.
Safety Data Sheet
Please consult Safety Data Sheet prior to use.
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.
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.
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.
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
3M is a trademark of 3M Company.
Please recycle.
© 3M 2014. All rights reserved.
78-8127-8758-4
(4)
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