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These BalShield® series EMI gaskets provide good shielding capability due to a unique canted-coil design, which creates numerous, independently loaded contact points that reduce the likelihood of creating a slot antenna effect at breaks in the enclosure or package. The spring gasket is a patented design of beryllium-copper wire with inclining coils that deflect independently when compressed. The large number of coils per inch closes potential gaps, improving shielding at discontinuations in an enclosure or connector interface. Compression set and fatigue are resisted through compression or temperature cycling to 60 percent compression. The gaskets can be plated with gold, silver, tin or nickel to lower contact resistance or improve corrosion resistance.
Bal Seal Engineering Company Inc., Santa Ana, CA (800) 366-1006 or (714) 557-5192.
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