Gore-Shield ® gs500 emi gaskets Summary GORE-SHIELD® GS500 EMI Gasket is a conductive, adhesive backed, EMI gasketing material that is moderately soft and is ideally suited for wireless infrastructure and telecommunications applications. GORE-SHIELD® GS500 EMI Gaskets can be supplied in die-cut part forms or in slit width rolls. Slit width material is ideal for manual “peel and stick” EMI gasketing applications. GORE-SHIELD® GS500 EMI Gaskets consist of a carbon-ﬁlled cellular PTFE matrix, a conductive pressure sensitive adhesive, and a PET carrier ﬁlm (see Figure 1). Features and Beneﬁts Applications EMI shielding for wireless infrastructure equipment, high frequency cable connectors, and telecommunications equipment in addition to portable electronic devices. Design Considerations When optimizing a gasket shielding solution, consider the housing design as well as the EMI gasket performance. Important considerations in the housing design include ﬂatness, surface roughness, material type, rigidity, contact area, tolerance take-up, conductivity, fastener type, and fastener locations. Key factors in an EMI gasket include softness, tolerance take-up, conductivity (DC resistance), and shielding effectiveness both before and after Accelerated Life Testing (ALT). Gore application engineers can provide expert design assistance and rapid prototyping for your EMI shielding needs. Contact Gore for additional information. • • • • • Good shielding effectiveness Excellent reliability through Accelerated Life Testing (ALT) Flame Retardant (UL-94 V-0) Broad temperature range Years of successful use worldwide Gore-Shield ® gs500 emi gaskets Thickness Options (Nominal) Figure 1 Inch mm 0.010 0.25 0.020 0.51 0.040 1.02 0.060 1.52 0.080 2.03 PTFE Conductive Pressure Sensitive Adhesive PET Carrier Film Nominal Material Properties (Shore A) 45 Density (gm/cc) 0.34 Operating Temperature Range (°C) 0 to 95 (with adhesive) Load and Shielding Effectiveness vs. % Compression GS500 with Adhesive Volume Resistivity 1.5 ohm-cm @ 500 psi, Ag electrodes Shielding Effectiveness (with adhesive) >45 dB @ 1 GHz (ARP 1705 Method) 50 600 V-0 Electrical Properties Load, psi SE @ 2 GHz 700 Load, psi Fire Safety Rating (UL-94) 60 800 –200 to 200 (excluding adhesive) 40 500 30 400 300 20 200 10 100 Shielding Effectiveness, dB Hardness 0 0 0 10 20 30 40 % Compression 50 60 RoHS Status RoHS Material* Pass/Fail Lead (Pb) Content Pass Cadmium (Cd) Content Pass Hexavalent Chromium (Cr6) Content Pass Mercury (Hg) Content Pass Bromine Compounds Pass GORE-SHIELD, GORE and designs are trademarks of W. L. Gore & Associates, Inc. ©2008 W. L. Gore & Associates, Inc. North America 1 (800) 445-GORE (4673) Europe +49 9144 6010 +44 1382 561511 International 1 (302) 292-5100 China: Beijing +86 10 6510 2980 China: Shanghai +86 21 6247 1999 China: Shenzhen +86 755 8359 8262 gore.com/emi More international phone numbers can be found at gore.com/phone Japan +81 3 3570 8712 Korea +82 2 393-3411 Taiwan +886 2 8771 7799 Singapore +65 6 733 2882 JK060321-01 W. L. Gore & Associates, Inc. Rev. 7-21-08 *W. L. Gore & Associates declares that we do not intentionally add substances listed in Directive 2002/95/EU to GORE-SHIELD® GS500 EMI Gasket Material. Independent lab tests have been performed and results are available upon request.