3M CN3490 1" X 1.5"-100

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RFI and EMI - Shielding and Absorbing Materials are utilized in various electrical and electronic applications in order to provide protection to circuitry and equipment from external electromagnetic emissions or internal radiation. One such example is 3M CN3490 1" X 1.5"-100.

3M CN3490 1" X 1.5"-100 is a shielding tape which consists of an aluminum foil backing which is coated with an acrylic pressure sensitive adhesive. It is used for numerous shielding, damping, and other related applications. The tape provides an electrical connection between the metalized surfaces and serves as a single-layer “bond breaker”, thus providing EMI/RFI protection.

The 3M CN3490 1” X 1.5”-100 material has a unique combination of shielding and absorbing properties. It has an excellent shielding performance of up to 40 dB at 10 GHz, is extremely thin and light – only 1.5 mils thick and weighing only a few ounces – and has excellent adhesion to many surfaces. It is also highly temperature resistant and flame retardant. Additionally, it is highly durable, and can be used in extreme temperature environments.

The 3M CN3490 1” X 1.5”-100 material is primarily used for shielding electronic components and wires from RF/EMI interference. It can be used to alleviate EMI/RFI interference in many applications, such as in automotive electronic systems, computers, medical equipment, and communication systems. It is also commonly used to shield and protect power cables from RF interference.

The tape’s shielding performance is based on its ability to absorb RF/EMI energy. The adhesive backing effectively creates a Faraday Cage which prevents externally generated RF/EMI energy from entering the core. The tape absorbs the RF/EMI energy and dissipates it as heat. This process prevents EMI/RFI interference from affecting the performance of the circuits.

The 3M CN3490 1" X 1.5"-100 comes in rolls of various sizes which can be cut to length in order to customize the size of the shield. Installation is quite simple and can be done in just a few minutes. Simply peel off the backing, place the tape on a flat surface, and press it in place. The tape can also be used to protect components and connections inside equipment, walls, and other enclosures.

The 3M CN3490 1" X 1.5"-100 is a cost-effective and reliable solution to protect electronic components and wires from RF/EMI interference. Its shielding, damping, and other related properties make it an ideal product for various applications. With its combination of shielding and absorbing capabilities, it is one of the best-performing and most reliable shielding tapes available.

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