1120 Tape Aluminum Foil with Conductive Adhesive Data Sheet Product Description Shielding Effectiveness 3MTM 1120 Tape consists of a 1-ounce deadsoft aluminum foil backing and an electrically conductive pressure-sensitive acrylic adhesive. * Deadsoft 1-ounce aluminum foil backing * Conductive acrylic adhesive * Supplied on a removable liner for easy handling and diecutting * Meets flame spread requirement of UL 510 Many factors determine the true shielding effectiveness of a shielding tape, including type and thickness of foil, adhesive type, intimacy of contact, smoothness of application surface, strength and frequency of the EMI signal, etc. However, using standard tests and fixtures, it is possible to determine a value for the attenuation. Applications 3M 1120 tape is typically used for applications requiring excellent electrical conductivity and is designed for EMI/RFI shielding and cable wrap. Typical Properties Typical Values Adhesive Acrylic Conductive Backing Aluminum Backing Thickness 2.0 mils (0.05mm) Total Thickness 4.0 mils (0.100mm) 1 Color Silver Metallic Electrical Resistance2 0.009 ohm Flame Retardancy3 Pass Breaking Strength 16 lbs/in (25N/10mm) Elongation (% at break) 5% Adhesion to Steel 36 oz/in (3.9N/10mm) 4 4 5 Note: Typical properties are not recommended for specification purposes. Product specifications will be provided upon request. Footnote: 1 Test Method ASTM D1000 2 Mil-STD-202 Method 303 maintained at 5 psi (3,4N/cm2) measured over 1 in2 surface area. Conductive particles in the adhesive provide the electrical path between the application substrate and the foil backing. 3 UL Recognized for flame retardancy per UL 510, Product Category OANZ2, File E17385. 4 Test Method ASTM D3759 5 Test Method ASTM D3330 3M is a trademark of 3M IMPORTANT NOTICE Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associated with such use. Warranty; Limited Remedy; Limited Liability. This product will be free from defects in material and manufacture as of the date of purchase. 3M MAKES NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. If this product is defective within the warranty period stated above, your exclusive remedy shall be, at 3M's option, to replace or repair the 3M product or refund the purchase price of the 3M product. Except where prohibited by law, 3M will not be liable for any loss or damage arising from this 3M product, whether direct, indirect, special, incidental or consequential regardless of the legal theory asserted. Electrical Products Division 6801 River Place Blvd. Austin, TX 78726-9000 http://www.3M.com/elpd/oem Litho in USA. (c) 3M IPC 2001 78-8125-9944-3-A