3M EMI Embossed Copper Shielding Tape 1245 with Non-Conductive Acrylic Adhesive Data Sheet June 2021 Product Description 3M EMI Embossed Copper Shielding Tape 1245 is a 4.2-mil (0.107 mm) thick tape composed of a 1.4-mil (0.036 mm) embossed copper foil backing coated on one side with a non-corrosive, non-conductive acrylic pressure-sensitive adhesive supplied on a removeable liner. Embossed pattern cuts through adhesive to establish z-axis contact between the copper foil backing and application substrate Commonly used for grounding, EMI shielding in equipment, components and shielded rooms Can be die-cut, is solderable and offers a multitude of uses in electrical design and test laboratories for prototyping, design and troubleshooting Adhesive requires no moisture, solvents, heat or other manner of preparation to affect application Flame Retardant per UL-510A Standard Properties Value Value Physical Properties Electrical Properties Imperial (Metric) Imperial (Metric) 4 2 Color - Visual Copper Electrical Resistance - Maximum 0.005 /in 3 Shielding Effectiveness - Average Adhesive Non-Conductive Acrylic 300 kHz 2.5 GHz - Average 64 dB Backing Copper Foil - Embossed 2 Flame Retardant Pass Value Mechanical Properties Imperial (Metric) Backing Thickness - Nominal 1.4 mil (0.036 mm) 4.2 +/- 0.7 mils 1 Total Thickness (0.107 +/- 0.018 mm) 1 Adhesion to Steel - Minimum 30.2 oz/in (3.3 N/cm) 1 Breaking Strength - Minimum 21.9 lb/in (38 N/cm) Notes: 1. ASTM D1000 Test Method - properties measured at room temperature 73F (23C) unless otherwise stated 2. UL Recognized Flame Retardant per UL510A Standard, Category OARC2, File No. E17385 3. ASTM D4935 Test Method - properties measured at room temperature 73F (23C) unless otherwise stated 2 2 4. Test Method: MIL-STD-202 Method 307 maintained at 5 psi (3.4 N/cm ) measured over a 1 in surface area Shielding Many factors determine the true shielding effectiveness of a shielding tape, including type and Effectiveness thickness of foil, adhesive type, intimacy of contact, smoothness of application surface, frequency of the EMI signal, etc. Agency Approvals & UL Component Recognized: UL510A Standard, Category OARC2, File No. E17385 Self Certifications For Regulatory information including RoHS, REACH, please visit www.3M.com/regs Shelf Life & Storage This product has a 5-year shelf life (from date of manufacture) when stored in humidity- controlled storage (50F/10C to 80F/27C and <75% relative humidity). Availability 3M EMI Embossed Copper Shielding Tape 1245 available from 3M authorized distributors / converters Also available from 3M.com/oem or call 1.800.245.3573. 1 of 2 3M EMI Embossed Copper Shielding Tape 1245 with Non-Conductive Acrylic Adhesive TECHNICAL STATEMENT Technical Information: The technical information, guidance, and other statements contained in this document or otherwise provided by 3M are based upon records, tests, or experience that 3M believes to be reliable, but the accuracy, completeness, and representative nature of such information is not guaranteed. Such information is intended for people with knowledge and technical skills sufficient to assess and apply their own informed judgment to the information. No license under any 3M or third party intellectual property rights is granted or implied with this information. 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Electrical Markets Division 13011 McCallen Pass, Bldg. C Please Recycle. Printed in USA. Austin, TX 78753 3M 2021. All Rights Reserved. Phone: 800.676.8381 78-8124-4707-2 Rev B www.3M.com/oem 2 of 2