3M CN4490 CIRCLE-0.563"-250

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Part Status:	Active

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, 2000

RFI and EMI - Shielding and Absorbing Materials

Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI) have become increasingly contentious issues in the electronic world. Technologies such as computers, communication and the internet, as well as other electronic devices, can generate large amounts of electromagnetic radiation. These are typically damaging to electromagnetic and electrical components, generating high levels of noise that impede the proper functioning of the system. It is therefore essential for any electronic device to be protected from such interference. This is where 3M\'s CN4490 CIRCLE-0.563"-250 shielding and absorbing materials come in.The CN4490 CIRCLE-0.563” - 250 is a range of shielding and absorbing materials developed by 3M, specifically designed to protect systems from EMI and RFI. It is suitable for use in a wide range of applications, from automotive, computer, aerospace and military applications, to communication, broadcasting, radar systems and video cameras. The main features of this range of products include excellent shielding, high absorption, low impedance, minimum resistivity and high electrical resistance. With the CIRCLE-0.563”-250, 3M has also produced effective shielding and absorbing products that can be applied in various environment conditions.In terms of its working principle, the CN4490 CIRCLE-0.563”-250 works by providing a Faraday cage, which can effectively block the emission or reception of electromagnetic radiation. This is achieved by covering the surface of the system to be protected with metallic material. This metallic material acts as a shield, absorbing and reflecting the electromagnetic radiation away from the device. The thickness of the material and the method of application are both important in providing effective shielding. Additionally, the CN4490 CIRCLE-0.563”-250 uses a combination of different materials and treatment techniques to ensure maximum performance.The CN4490 CIRCLE-0.563”-250 therefore provides excellent protection against both EMI and RFI noise at a competitive price. In a range of different applications, this material has proven effective in blocking EMI and RFI noise, and allowing the system to function properly. This makes it an ideal choice for any application requiring effective shielding and protection from high levels of electromagnetic radiation.

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