3M CN4490 3" X 3"-25

The 3M CN4490 3" X 3"-25 adhesive transfer tape is an insulation material designed to provide both Radio Frequency Interference (RFI) and Electromagnetic Interference (EMI) protection. This tape is most commonly used to help protect sensitive electronics, such as radios and cellular phones, from radiation that can cause interference or cause permanent damage. The CN4490 3" X 3"-25 tape has a highly reflective backing, which reflects RFI and EMI waes. The reflective surface of the tape is made up of a thin aluminum layer and a dielectric polymer layer. The aluminum layer provides the protection from RFI and EMI waves while the polymer layer acts as a barrier, absorbing the energy from the waves and preventing them from entering the equipment.

The CN4490 3" X 3"-25 tape’s reflective backing is also responsible for its absorbing properties. The aluminum layer is very thin so it can easily be penetrated by the incoming RFI and EMI waves. In order to protect the equipment, the tape absorbs the energy from the waves, preventing them from entering the equipment and causing permanent damage. A further bonus to this is that the absorbed energy is dissipated quickly and safely without causing any harm to nearby people or equipment.

The 3M CN4490 3" X 3"-25 adhesive transfer tape is most commonly used for applications such as shielding of sensitive electronic components. It helps to protect equipment against RFI and EMI radiation from external sources, such as radio broadcast towers. The tape is also used to protect portable electronic devices, such as cellular phones and laptops, from the radiation generated by the device itself. Additionally, the CN4490 3" X 3"-25 tape can also be used for grounding and bonding applications, providing an effective way of connecting electrical components together.

The 3M CN4490 3" X 3"-25 adhesive transfer tape is an effective way of providing protection from RFI and EMI radiation for a variety of electronic components and equipment. The tape’s reflective backing reflects incoming radiation while its adhesive properties provide a secure connection. The adhesive also helps to ensure the tape is securely fastened and does not slip or become detached. The tape is a cost-effective and convenient way of providing reliable and effective protection for sensitive electronics and equipment.