1-6-1194

Series:	1194
Part Status:	Active
Type:	Shielding Tape
Shape:	--
Length:	18.000' (5.50m)
Width:	1.000" (25.40mm)
Thickness - Overall:	0.003" (0.07mm)
Operating Temperature:	--
Adhesive:	Non-Conductive, Single Sided
Material:	Copper Foil

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RFI and EMI - Shielding and Absorbing Materials

Radio Frequency Interference (RFI) and Electro Magnetic Interference (EMI) are forms of electronic interference caused by the transmission of wireless signals. RFI and EMI interfere with and degrade the signals of electronic components. In order to prevent this interference from causing issues with electronic components, a variety of shielding and absorbing materials can be used. 1. MetalsMetals are the most common RFI and EMI shielding materials. Metals are highly conductive and therefore can dissipate and contain the electromagnetic waves from interfering with electronic components. Common metals used for shielding are aluminum, copper, stainless steel and tin. 2. GasketsGaskets are another effective RFI and EMI shielding material. Gaskets work in conjunction with metals and are commonly made from steel, nickel plated steel or copper. They also have additional features such as oil/waterproofing, resistance to temperature change, and are less likely to corrode.3. PolymersPolymers are also used as a shielding material because they can be molded to fit around edges and components and form a continuous bond. Common polymers used for shielding are Styrene-Butadiene (SBR), Polypropylene (PP), Polyethylene (PE) and Polyvinyl Chloride (PVC).4. Plastic FoamsPlastic foams are another shielding material used to provide additional protection to electronic components. Plastic foams work by absorbing diffracted and refracted electromagnetic waves. Common plastics used for foams are Polyurethane (PU), Polyvinylidene Fluoride (PVDF), and PVC.5. Paints and CoatingsPaints and coatings are another effective shielding material and are commonly used for the exterior of components to protect them from the environment. These type of shielding materials are mostly made from electrically conductive materials like graphite, silver, and nickel.6. CeramicsCeramics are one of the most popular shielding materials and work by absorbing and dissipating electromagnetic radiation. Common ceramics used are made from aluminum oxide (Al2O3), magnesium oxide (MgO), and silicon carbide (SiC). 1194 Application Field and Working PrincipleRFI and EMI shielding and absorbing materials have a wide range of application fields. These materials are used in products ranging from small electronics, such as phones and laptops, to larger products, such as airplanes, cars, and ships.The working principle of these materials is quite simple. They all work to act as a barrier or absorb the electromagnetic waves that can interfere with electronic components. The materials are designed to be conductive enough to absorb and dissipate the interference and block out any further noise or interference. In conclusion, RFI and EMI shielding and absorbing materials provide effective protection for electronic components. By using these materials, one can protect their electronic components from the interference of radio waves and electromagnetic signals.

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