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3M Electronics - EMI Absorber

Numéro de référence AB7000
Description EMI Absorber
Fabricant 3M Electronics 
Logo 3M Electronics 





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AB7000 fiche technique
3MEMI Absorber AB7000 Series
Data Sheet
February 2009
Description
Agency Approvals
& Self Certifications
Applications
Attenuation and
Power Loss
Typical Properties
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.
Flexible, high permeability magnetic sheets
One-sided acrylic pressure-sensitive adhesive
Easily die cut into complex shapes
RoHS 2002/95/EC
RoHS Compliant 2002/95/EC” means that the product or part (“Product”) does not contain any of the substances in excess of the
maximum concentration values in EU Directive 2002/95/EC, as amended by Commission Decision 2002/618/EC, unless the
substance is in an application that is exempt under RoHS. This information represents 3M’s knowledge and belief, which may be
based in whole or in part on information provided by third party suppliers to 3M.
AB7000 absorber 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.
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 AB7000 absorber 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 AB7000 placed on a 50microstrip line. The attenuation and noise
dampening attained generally increases as the thickness of the material increases.
Not for specifications. Values are typical, not to be considered minimum or maximum.
Properties measured at room temperature 73°F (~23°C ) unless otherwise stated.
Physical 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
www.DataSheet4U.com
Temperature Range
-25°to 85°C
Surface resistivity (ASTM-257)
1x10 6(min)
Initial Permeability1
110
Typical Performance2
Refer to S11 attenuation and power loss graphs
Notes: 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 50microstrip line method. 3M TM K-RD-EMC-AB-01
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