3M CN4190 1"SQ-250

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3M CN4190 1"SQ-250 is a shielding and absorbing material designed for use in the reduction of Radio Frequency Interference (RFI) and Electromagnetic Interference (EMI) induced signal losses or disturbances in data transmissions. It is effective in both line-of-sight and low level signal attenuation scenarios, and has the added benefit of providing improved thermal insulation for the environment.

The CN4190 material is constructed of a metallic foil with a dielectric film separating them, and a layer of absorptive material on the bottom side. These multiple layers create a composite material that offers superior shielding performance. The dielectric layer increases the capacitance of the material and serves to divert energy away from the system, dissipating any undesirable or interfering signals. The bottom layer of absorptive material then provides additional protection from EMI and RFI, as it absorbs any stray electromagnetic waves.

The CN4190 material is ideal for a variety of shielding and absorbing requirements, especially in applications involving data transmission or wireless communication. It can be used to shield cables or antennas from outside interference, and can be applied directly to sensitive surface-mount components or other devices to reduce signal loss and protect them from external sources of EMI/RFI. It is also suitable for enclosures or other types of shielding devices, providing a reliable and cost-effective form of protection against signal interference.

In terms of use and installation, the CN4190 material is extremely versatile. It can be used as a thin sheeting to create a conductive path to create a Conductive Shielding Box, or applied directly to a surface to eliminate RFI/EMI at the source. Additionally, the material is extremely user-friendly and installation only requires basic tools. Finally, due to its superior performance in low level signal attenuation scenarios, the CN4190 material is ideal for a variety of applications including military, aerospace, medical, automotive, and other high-tech industries.

In summary, the 3M CN4190 1"SQ-250 is an excellent shielding and absorbing material designed to reduce RFI and EMI induced signal losses or disturbances in data transmissions. It is effective in both line-of-sight and low level signal attenuation scenarios, as well as providing improved thermal insulation for the environment. It is ideal for a variety of shielding and absorbing requirements, and is easy to use and install. Finally, it is suitable for a wide range of industries, and is a reliable and cost-effective form of protection against signal interference.

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