D808586.DataSheet_HiResProof

GORE EMI Shielding ®MATERIALS GS8000 SERIES — Gaskets and Grounding PadsIncrease package design flexibility while maintaining electrical integrity The GS8000 Series of GORE® EMI Shielding Materials improves package design flexibility without compromising the electrical performance of the device. These highly compressible materials are specifically engineered to maintain consistent conductivity through a wide working range (see Figure 1 and Figure 2). With Gore’s strong technology focus in materials, the GS8000 Series was developed with a unique conductive foam. The soft conductive- foam construction accommodates surface variations in covers and printed circuit boards, alleviating the need to specify very tight tolerances. This soft construction also makes the GS8000 Series compatible with plastic housings and snap fasteners. This material maintains excellent shielding performance in a trace width as narrow as 1 mm, providing comparable performance to other EMI shielding materials that are 3 times the width. With the lower compression or closure force, fewer fasteners are needed. Table 1: Environmental and Mechanical PropertiesProperty ValueTemperature range - 45°C to 85°CRoHS Status (lead, cadmium, hexavalent chromium, mercury, bromine) PassFlammability in accordance with UL 94 horizontal burn method PassHalogen levels (measured per BS EN 14582:2007) Chlorine < 50 ppm Bromine < 50 ppm Fluorine < 50 ppm Iodine < 50 ppmTypical working range (for grounding pads) 0.15 mm to 2.2 mm ( 0.006\" to 0.087\")Typical working range (for EMI gaskets) 0.15 mm to 1.4 mm ( 0.006\" to 0.055\")Typical pressure to recommended compression stop (RCS) 20 to 50 psiTypical Applications•󰀁•󰀁Portable electronic devices, mobile phones, and GPS•󰀁Portable computersHand-held field testing equipmentBenefits of GORE®Materials — GS8000 Series EMI Shielding • Unsurpassed shielding effectiveness and minimal DC resistance with low compressive force and broad range of tolerance take-up • Reliable electrical performance over wide range of gap distances from soft foam construction • Effective shielding performance in trace widths as narrow as 1 mm• Improved design flexibility because of low closure force Available as grounding pads and precision die-cut parts that enable precise, high-volume assembly, the GS8000 Series of GORE® EMI Shielding Materials provide maximum cavity-to-cavity EMI protection in a smaller size for more design flexibility. Available as custom die-cut gaskets, strip gaskets, and grounding padsGORE EMI Shielding ®MATERIALS GS8000 SERIES — Gaskets and Grounding PadsExtended Service HeightsThe GS8000 Series of GORE® EMI Shielding Materials performs well in both grounding and EMI shielding applications. Gore recommends using each variant within a range of service heights (gap distances). For shielding applications, Gore recommends a smaller service height range than for grounding applications to ensure a robust EMI seal.The low closure force and broad range of tolerance take-up results in multiple product choices for some gap distances. Selecting the most suitable variant for a given application depends on: 1. Gap distance of the housing that needs to be filled2. Compression force required to achieve the specified gap distance3. Required DC resistance for grounding applications (or required shielding effectiveness for shielding applications) at a specified gap distanceFigure 1 and Figure 2 show recommended service heights (gap distances) for each variant.Figure 1: Recommended Service Heights for Use in EMI Gasket Applications1.501.351.20Gap Distance (mm)1.050.900.750.600.450.300.150.000.30 mm @ 50 psi 0.30 mm @ 100 psi0.15 mm @ 325 psi0.60 mm @ 20 psi0.60 mm @ 80 psi0.50 mm @ 100 psi0.85 mm @ 20 psi1.40 mm @ 5 psiGS8000-03XGS8000-063GS8000-095GS8000-126GS8000 SeriesFigure 2: Recommended Service Heights for Use in Grounding Pads2.402.252.101.951.801.651.501.351.201.050.900.750.600.450.300.150.002.20 mm @ 1 psiForce and DC ResistanceThree of the variants among the GS8000 Series provide conductivity when compressed to 0.6 mm (0.24 in); however, the amount of force and DC resistance varies for each. Table 2 shows the values for each of these three variants.Gap Distance (mm)1.20 mm @ 5 psi 0.90 mm @ 5 psi 0.45 mm @ 10 psi 0.60 mm @ 20 psi 0.85 mm @ 20 psi 1.40 mm @ 5 psiTable 2: Force and DC Resistance Values at 0.6 mm Gap (data taken from Figures 3 – 6) Variants Force Required (psi) 15 50 85 DC Resistance (ohms)0.030.020.01 GS8000-063 GS8000-095 GS8000-126 0.50 mm @ 100 psi 0.30 mm @ 50 psi100 psi @ 0.30 mm 0.15 mm @ 325 psi 0.60 mm @ 80 psiGS8000-03XGS8000-063GS8000-095GS8000-126GS8000 SeriesTable 3: Product Specifications (measured on 5 x 5 mm grounding pads) Compression Weight Compression Stop Variants (g) Stop mm (in) GS8000-03X GS8000-063 GS8000-095 GS8000-126 0.008 0.010 0.011 0.013 High Recommended Low High Recommended Low High Recommended Low High Recommended Low 0.45 (0.018) 0.30 (0.012) 0.15 (0.006) 0.90 (0.035) 0.60 (0.024) 0.30 (0.012) 1.20 (0.047) 0.85 (0.033) 0.50 (0.020) 2.20 (0.087) 1.40 (0.055) 0.60 (0.024) Pressure to Achieve Compression (psi) 5 80 380 5 20 100 4 20 100 1 4 80 Initial DC Resistance (ohms) 0.245 0.125 0.015 0.070 0.025 0.007 0.115 0.040 0.010 0.240 0.150 0.012 Recovered Thickness mm (in)10.56 (0.022)0.38 (0.015)0.25 (0.010)1.19 (0.047)0.91 (0.036)0.51 (0.020)1.65 (0.065)1.24 (0.049)0.74 (0.029)2.62 (0.103)1.90 (0.075)0.94 (0.037)1 To measure the recovered thickness, samples were compressed to the compression stop. While compressed, the samples were subjected to a 70°C temperature soak for 70 hrs per ASTM D395B. Lastly, the samples were released from compression and allowed to recover for 30 minutes before the recovered thickness was measured. For use as an EMI Gasketing Material, we recommend compressing the GS8000 material to at least the published recommended compression stop to ensure an effective EMI seal (see Table 4). Table 4: Shielding Effectiveness1 Compression Variants Compression Stop mm (in) Stop Shielding Effectiveness1 GS8000-03X Recommended 0.30 (0.012) > 50 dB Low 0.15 (0.006) > 65 dB GS8000-063 Recommended 0.60 (0.024) > 90 dB Low 0.30 (0.012) >100 dB GS8000-095 Recommended 0.85 (0.033) > 85 dB Low 0.50 (0.020) > 95 dB GS8000-126 Recommended 1.40 (0.055) > 75 dB Low 0.60 (0.024) > 95 dB1 All measurements made using ARP-1705 modified test method through 3 GHz on 2 mm trace widthFigure 3: GS8000-03X Force Displacement Resistance (testing with 5 x 5 mm grounding pads) 0.25350)s0.20300mhO250)i(s ec0.15pn200( eacrts0.10150oiFseR C100D0.0550 mm 0.45 0.40 0.35 0.30 0.25 0.20 0.15 mm0.000 in 0.018 0.016 0.014 0.012 0.10 0.008 0.006 inCompressed GapForceDC ResistanceFigure 4: GS8000-063 Force Displacement Resistance (testing with 5 x 5 mm grounding pads)0.253500.20300)sm250h)Oi(0.15s e200p(c neacrts0.10150oiFseR100 CD0.05500.00 mm 0.9 0.8 0.7 0.6 0.5 0.4 0.30 mm in 0.035 0.031 0.028 0.024 0.020 0.016 0.012 in Compressed GapForceDC ResistanceGORE EMI Shielding ®MATERIALS GS8000 SERIES — Gaskets and Grounding PadsFigure 5: GS8000-095 Force Displacement Resistance(testing with 5 x 5 mm grounding pads)0.250.20DC Resistance (Ohms)Ordering InformationThe GS8000 Series of GORE® EMI Shielding Materials are available as custom die-cut gaskets, strip gaskets, and grounding pads. To order or specify GS8000 grounding pads and custom die-cut gaskets, contact Gore for assistance. Standard strip gaskets (as seen in Table 5) are available through several distributors. Go to gore.com/emidistribu-tors for the list. These strip gaskets are packaged on 15 meter rolls. For other available strip gasket configura-tions, contact Gore for assistance.3503002500.150.100.0520015010050Force (psi)Table 5: Strip Gasket Ordering Information Part Number Variants GS8000-03X GS8000-03X GS8000-03X GS8000-063 GS8000-063 GS8000-063 GS8000-095 GS8000-095 GS8000-095 GS8000-126 GS8000-126 GS8000-126 Width0.500\"0.250\"0.125\"0.500\"0.250\"0.125\"0.500\"0.250\"0.125\"0.500\"0.250\"0.125\" EDR-80-03X-0500-SC EDR-80-03X-0250-SC EDR-80-03X-0125-SC EDR-80-063-0500-SC EDR-80-063-0250-SC EDR-80-063-0125-SC EDR-80-095-0500-SC EDR-80-095-0250-SC EDR-80-095-0125-SC Force (psi) 0.000mm 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 in 0.47 0.43 0.39 0.35 0.31 0.28 0.24 0.20 ForceCompressed GapDC ResistanceFigure 6: GS8000-126 Force Displacement Resistance(testing with 5 x 5 mm grounding pads)0.250.20DC Resistance (Ohms)3503002500.150.100.0520015010050 EDR-80-126-0500-SC EDR-80-126-0250-SC EDR-80-126-0125-SC 0.000mm 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 mm in 0.087 0.079 0.071 0.063 0.055 0.047 0.039 0.031 0.024 in ForceCompressed GapDC ResistanceCovered by U.S. Patent 6,309,742NOTICE — USE RESTRICTIONS APPLY Not for use in food, drug, cosmetic or medical device manufacturing, processing, or packaging operations. GORE and design are trademarks of W. L. Gore & Associates, Inc. ©2012 W. L. Gore & Associates, Inc. 01-02-12W. L. Gore & Associates gore.com