Cable Aluminum Foil

Cable foil is an aluminum-plastic composite foil made of aluminum foil, usually coated with plastic film on one or both sides as a protective layer for cables. This material contains less oil on the surface, has no holes, and has high mechanical properties.

Therefore, it is widely used as a shielding material for various signal lines. Its main function is to shield external interference signals and prevent radiation and static electricity. The thickness of aluminum foil has an important impact on the shielding effect. Generally speaking, interference sources with frequencies below 1GHZ are difficult to penetrate aluminum foil with a thickness exceeding 38u. While aluminum foil is not as effective as wire wrap and braid as a shielding material, it can still be an effective shielding material in certain situations. For example, when braid and aluminum foil are present together, they can work together to better shield signals.

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