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 w idth material is ideal for manual peel and stick emi gasketing applications. gore-shield ? gs500 emi gaskets co nsist of a carbon-? lled cellular ptfe matrix, a conductive pressure sensitive adhesive, and a pet carrier ? lm (see figure 1). applications emi shielding for wirele ss 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 ? atness, 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 resistanc e), and shielding effectiveness both before and after accelera ted life testing (alt). gore application engineers can pr ovide expert de sign assist ance and rapid prototyping for your emi shielding needs. contact gore for additional information. features and bene? ts good shielding effectiveness ? excellent reliability through a ccelerated life testing (alt) ? flame retardant (ul-94 v-0) ? broad temperature range ? years of successful use worldwide ?
gore-shield ? gs500 emi gaskets jk060321-01 rev. 7-21-08 w. l. gore & associates, inc. 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 thickness options (nominal) inch mm 0.010 0.25 0.020 0.51 0.040 1.02 0.060 1.52 0.080 2.03 nominal material properties hardness (shore a) 45 density (gm/cc) 0.34 operating temperature range (c) 0 to 95 (with adhesive) C200 to 200 (excluding adhesive) fire safety rating (ul-94) v-0 electrical properties volume resistivity 1.5 ohm-cm @ 500 psi, ag electrodes shielding effectiveness (with adhesive) > 45 db @ 1 ghz (arp 1705 method) figure 1 ptfe conductive pressure sensitive adhesive pet carrier film load and shielding effectiveness vs. % compression gs500 with adhesive 800 700 600 500 400 300 200 100 0 60 50 40 30 20 10 0 0 10 20 30 40 50 60 % compression load, psi shielding effectiveness, db load, psi se @ 2 ghz rohs status rohs material* pass/fail lead (pb) cont ent pass cadmium (cd) cont ent pass hexavalent chr omium (cr6) c ontent pass mercury (hg) cont ent pass bromine compou nds pass *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.
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