AB7000

3M™ EMI Absorber AB7000 Series Data Sheet Description February 2009 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. Agency Approvals & Self Certifications Applications 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 50 microstrip 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° (~23° ) unless otherwise stated. F C Property (Test Method) Adhesive Type of Backing Product Number Backing Thickness Adhesive Thickness Standard packaging Temperature Range Surface resistivity (ASTM-257) Initial Permeability1 Typical Performance 2 Attenuation and Power Loss T ypical Properties Physical 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° to 85° C 1x10 6 (min) 110 Refer to S11 attenuation and power loss graphs N otes: 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 50 microstrip line method. 3M TM K-RD-EMC-AB-01 1 of 2 3 3M™ EMI Absorber AB7000 Series Permeability Reflection Loss Power Loss Shelf Life & Storage Availability Important Notice This product has a 5-year shelf life from date of manufacture when stored in a humidity controlled storage (10° C/50° to 27° F C/80° and