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RFI Shielding Manufacturers and Companies

IQS Directory provides an extensive list of rfi shielding manufacturers and suppliers. Utilize our website to review and source rfi shielding manufactures with our easy-to-use features which allow you to locate rfi shielding companies that will design, engineer, and manufacturer rfi shielding for your exact specifications. Our request for quote forms make it easy to connect with leading rfi shielding manufacturers. View company profiles, website links, locations, phone number, product videos, customer reviews, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for emf shields, emi rfi shielding, or rfi suppression.

Leading Companies:

  • San Fernando, CA 818-764-8222

    Our team at Spira strives to bring you the best gaskets on the market. We exhibit our commitment to quality products by staying at the forefront of ever-changing manufacturing technology. We offer RFI gaskets to suit various applications, with groove-mounted, surface-mounted, and honeycomb filter configurations available. Contact us and we will help you find the gasket that suits your requirements.

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  • Lancaster, NY 716-684-7600

    Since 1963, we have provided the very best in EMI shielding and RFI shielding to customers around the world. To this day, we remain located in New York and our primary clients are all local residents of the area. However, we also have customers around the world, because our reputation makes us stand out in the sea of competition Contact us to learn more!

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  • Tipp City, OH 937-667-8484

    Established in 1965, Captor Corporation has been an industry leader offering high quality custom EMI filters. Our services use "off the shelf" parts, are faster and more affordable than our competitors. We also specialize in manufacturing low to medium volume jobs of circuit boards and cable harnesses. Contact us today for EMI/RMI filter solutions tailored to meet your specific requirements!

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  • Bethlehem, PA 800-576-7325

    Seal Science, Inc. (SSI) is an industry leader in design engineering and precision manufacturing of materials and components for critical sealing applications and advanced technology systems. SSI provides cutting edge technological solutions for mechanical and electrical systems; including structural subsystem design, signature management and electromechanical interference (EMI) shielding products. Contact us for more information!

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  • Hackettstown, NJ 908-227-6857

    East Coast Shielding manufactures and distributes EMI/RFI shielding materials. We offer conductive elastomers, wire, shield strips, wire mesh, air ventilated panels, EMI gaskets and more. Call us today so we can talk one-on-one to ensure that your EMI shielding needs are met.

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RFI Shielding Industry Information

RFI Shielding

RFI shielding is a method of protection against any electromagnetic disturbance that is emitted from either an electrical circuit or electronic component that may interfere with the operation of other electrical circuits or components. Radio frequency interference, or RFI, is radiated electromagnetic “noise,” which travels through the air as radio waves.

RFI is identical to EMI, or electromagnetic interference, except that EMI is conducted along wires, electrical circuits and conductors, while radio frequency interference (RFI) travels across “free” air space in the form of radio waves. Electromagnetic interference and radio frequency interference are the magnetic fields which are given off as a bi-product of electrical currents, and both EMI and RFI impede the normal flow of electricity through currents, causing interference and malfunction in electronic devices. Radio frequency interference is high frequency, typically 100 kilohertz or above; RF shielding is especially designed to block these high frequencies with copper, aluminum, galvanized steel, conductive rubber, plastic or EMI coating paints. RFI can be shielded by EMI enclosures, EMI coatings and EMI gaskets. It should be noted that not all of these block ground-conducted electromagnetic interference; EMI enclosures, gaskets and EMI coated enclosures aim to block out RFI signals traveling through the air and are not nearly as effective in trying to block conducted EMI.

EMI and RFI are created, by widely varying degrees, by everything which conducts electrical energy, including electrical wires, electrical appliances, computers and all electronic equipment. Signal-bearing electronic devices such as mobile phones, laptops and GPS devices give off RFI. Normal electrical currents are disrupted when moderate to high levels of EMI or RFI are introduced; un-channeled electromagnetic signals and radio frequency waves can act as “noise”, magnetically altering normal flow of electrical currents and impeding the flow of electrical energy. Products such as EMI enclosures, EMI coated interiors and EMI gaskets are necessary to provide full protection from RFI, which continues to increase exponentially as more and more mobile electronic devices are introduced to the consumer market. However, even through RFI products can be used, RFI sprays are the most common form of RFI shielding. An RFI spray, or coating, is often composed of an acrylic base in addition to pure metals such as silver, copper or nickel. Some common applications of RFI shielding include packaging of electronic devices such as printed circuit boards (PCBs), cable assemblies, interconnects and input output filters. Industries that commonly require RFI shielding products include medical, telecommunications, electronics and military.

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RFI Shielding Informational Video