3M CN4190 1/2" X 4"-100

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RFI and EMI shielding and absorbing materials provide an array of solutions to protect equipment and personnel from exposure to electromagnetic radiation. One such material is the 3M CN4190 1/2" X 4"-100, which provides excellent protection from the most common radiation-generating sources. This article looks at the application fields and working principle of the 3M CN4190 1/2" X 4"-100.

The 3M CN4190 1/2" X 4"-100 is a polyurethane-based foam sheet designed to absorb and dissipate electromagnetic frequencies from a variety of sources. In addition, it features a conductive/shielding material that absorbs and reflects various wavelengths. This makes it an ideal solution for a variety of applications such as cable shielding, antenna protection, and electrical system protection.

In terms of application fields, the 3M CN4190 1/2" X 4"-100 offers a range of uses. For example, it can be used to construct cable shields, provide protection to antennas, and form the basis of other EMI/RFI shielding solutions, such as diffusers and absorbers. It can also be used to insulate cables, provide protection against damaging RF and EMI signals, and reduce field emission. Additionally, it can be used to establish part of a signal stack, where multiple layers of material act as a flexible barrier to protect against RF and EMI.

The working principle of the 3M CN4190 1/2" X 4"-100 is fairly simple. The material absorbs and reflects energy from various frequencies, dissipating the energy into the atmosphere. This dissipating process is helped by the conductive/shielding material, which gives it a high level of absorption and reflection capabilities. Additionally, due to its polyurethane-based foam sheet material, it is flexible and can be used to form complex shapes, such as diffusers, absorbers, and other shielding solutions.

In terms of EMI/RFI protection, the 3M CN4190 1/2" X 4"-100 provides excellent shielding qualities. It blocks levels of energy up to nine times higher than common silver-plated shielding lines and has superior dependability in noise rejection, with a low-level signal-to-noise ratio. It also offers superior protection from the wide range of frequencies emitted by electronic equipment.

All in all, the 3M CN4190 1/2" X 4"-100 is a flexible and dependable EMI/RFI shielding and absorbing material. It has a range of applications, from cable shielding and antenna protection, to signal stack building and field emission protection. Its working principle of absorption and reflection of different frequencies, enhanced by its conductive/shielding material, gives it superior EMI/RFI protection qualities and makes it an ideal EMF radiation-blocking solution.

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