3M CN4490 1" X 1.5"-100

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RFI and EMI - Shielding and Absorbing Materials encompass a variety of materials and techniques that are designed to protect electronic and other sensitive equipment from unwanted electromagnetic interference. The 3M CN4490 1" x 1.5"-100 is a highly versatile material in this regard, offering outstanding shielding and absorption performance for a variety of applications.

In its most basic form, the 3M CN4490 material is a foil-backed adhesive material. Its backing is made of a durable aluminum foil, which provides excellent shielding from EMI and RFI (Radio Frequency Interference) and is also resistant to corrosion. This material also features a special pressure-sensitive adhesive, which adheres strongly to multiple surfaces. In terms of thickness, the 3M CN4490 measures roughly 1 mil or 0.001” thick.

The 3M CN4490 is designed for a wide range of applications, such as bonding, sealing, gasketing, caulking, EMI/RFI shielding, and absorbing. In the realm of EMI/RFI shielding, this material is typically used in products like antennas, sensitive electronics enclosures, small communications and networking devices, and other radio-frequency-sensitive components. The aluminum backing effectively blocks, absorbs and/or reflects radio signals and electromagnetic energy, while the adhesive provides a strong bond with the surface.

In terms of absorbing, the 3M CN4490 material is also effective at minimizing the electromagnetic radiation emitted by its own source. This is especially useful for products in that are in close proximity with other sensitive electronics, as the absorbed radiation is much less likely to cause interference with nearby devices.

The 3M CN4490 material is also commonly used in the environment of automotive electronics, industrial electrical equipment, computers, communication systems and other electrical components where strong resistances to EMI and RFI is essential. Furthermore, the product’s adhesive backing allows it to be used on a variety of surfaces.

The 3M CN4490 material can also be used in a variety of other applications, such as cable shielding, static sealing, and conformal coating. The material’s durable adhesive is resistant to temperatures ranging from -40 to 194°F (-40 to 90°C), making it suitable for a variety of operating environments.

In conclusion, the 3M CN4490 1" X 1.5"-100 is a versatile material that is specifically designed to provide EMI and RFI shielding and absorbing performance. Its abilities and features make it suitable for a wide variety of applications, including antennas, sensitive electronics enclosures, and other radio-frequency-sensitive components. Additionally, its durable adhesive allows it to be used on a variety of surfaces and for applications such as static sealing and cable shielding.

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