These EMI and RFI currents are generated from a broad range of sources, including car ignition systems, cell phones, thunder storms, the Sun, and the northern lights. These waves commonly affect AM/FM radios, cell phones and televisions. Read More…
Spira Manufacturing CorporationSan Fernando, CA | 818-764-8222
Spira Manufacturing Corp. offers the most reliable EMI gaskets & shielding for the electrical / electronic industries to meet required EMC/EMI shielding regulations.$$$
Sealing Devices Inc.Lancaster, NY | 716-684-7600
Sealing Devices is a leading North American distributor and fabricator of EMI shielding products, including conductive elastomers, Soft-Shield® low closure force gasketing, windows, conductive adhesives, formed-in-place parts, vents and elastomers.$$$
Artcraft Plating & Finishing Co., Inc.Burbank, CA | 818-845-9292
Artcraft is a third-generation company founded in 1951. We offer a wide variety of services, including EMI and RFI shielding. From missile parts for the US military, to plating tubes for satellites launched into outer space, no project is too difficult for our team to handle. Call us today and tell us about your next project!$$$
Omega Shielding® ProductsRandolph, NJ | 973-366-0080
Omega Shielding Products is your premier source for high-performance, metal-stamped, fingerstock EMI RFI shielding solutions. An ISO9001:2008 certified manufacturer of EMI shielding and RFI shielding products, Omega offers an extensive line of EMI gaskets, rings and more to meet your specific needs. Omega Shielding Products maintains the highest levels of product quality and customer...$$$
Central Coating Company, Inc.West Boylston, MA | 508-835-6225
Central Coating is the largest applicator of coatings in the Northeast. We specialize in the application of EMI shielding, industrial, textured and conformal coatings; form in place gaskets, pad printing, silk screening and value-added operations. ISO 9001:2015 registered, Central Coating specializes in the custom application of EMI shielding material using robotic and manual application...$$$
EMI/RFI Shielding List
There are two distinct types of electromagnetic interference that produce two different effects. The first type is known as "narrowband" EMI or RFI. Narrowband interference is generated from transmissions like radio and TV stations or cell phone signals.
"Broadband" interference is the second type of interference, and this type of interference is unintentionally generated from electric power transmission lines and other similar electrical systems.
EMI shields are built using magnetic alloys that are highly permeable. These materials are usually built in a closed container around the device that they are protecting. Rather than block the interfering waves, these magnetic metals absorb them so that they do not pass on to the device. The shield is usually layered to exponentially diminish the force of the electromagnetic waves.
EFI/RFI interference poses a potential problem for essentially any industry, so shielding solutions need to be integrated in order to prevent these problems. Sometimes this shielding is applied in the form of a spray. This acrylic based product can be sprayed onto plastic electronic housings. Nickel, silver and copper particles blended into the spray help to reduce or entirely eliminate interference. These types of coatings can also be purchased in brush paint form.
In medical settings like hospitals and clinics, EMI/RFI shielding must be used to prevent equipment from being interfered with by nearby devices like cell phones. The FDA sets and regulates standards for the shielding of equipment to safeguard against malfunctions in critical medical situations where an equipment malfunction could be fatal to a patient being treated.
With spray and paint solutions, EMI/RFI shielding is becoming easier to apply than ever before, slowly eliminating the complications related to electromagnetic interference.