4-6-1245

3M™ EMI Embossed Copper Shielding Tape 1245 with Non-Conductive Acrylic Adhesive Data Sheet Product Description June 2021 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 Imperial (Metric) Copper Physical Properties Color - Visual Adhesive Non-Conductive Acrylic Backing Copper Foil - Embossed Flame Retardant2 Adhesion to Steel1 - Minimum Pass Value Imperial (Metric) 1.4 mil (0.036 mm) 4.2 +/- 0.7 mils (0.107 +/- 0.018 mm) 30.2 oz/in (3.3 N/cm) Breaking Strength1 - Minimum 21.9 lb/in (38 N/cm) Mechanical Properties Backing Thickness - Nominal Total Thickness1 Notes: 1. 2. 3. 4. Electrical Properties Electrical Resistance4 - Maximum Shielding Effectiveness3 - Average 300 kHz – 2.5 GHz - Average Value Imperial (Metric) 0.005 Ω/in2 64 dB ASTM D1000 Test Method - properties measured at room temperature 73°F (23°C) unless otherwise stated UL Recognized Flame Retardant per UL510A Standard, Category OARC2, File No. E17385 ASTM D4935 Test Method - properties measured at room temperature 73°F (23°C) unless otherwise stated Test Method: MIL-STD-202 Method 307 maintained at 5 psi (3.4 N/cm2) measured over a 1 in2 surface area Shielding Effectiveness 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, frequency of the EMI signal, etc. Agency Approvals & Self Certifications  UL Component Recognized: UL510A Standard, Category OARC2, File No. E17385  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 humiditycontrolled storage (50°F/10°C to 80°F/27°C and