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Radio Frequency Interference (RFI) and Electromagnetic Interference (EMI) can pose serious threats to many services and products. In order to mitigate the risks posed by these sources of interference, products must be shielded from both RFI and EMI sources. This can be achieved by using a variety of shielding technologies, including contacts, fingerstock, and gaskets. In this article, you will learn more about the applications and working principles of each of these shielding technologies.

Contacts

Contacts are often used in conjunction with other shielding technologies to provide a complete shielding solution. There are several types of contacts available, all of which are designed to protect against both RFI and EMI. One of the most commonly used contact shielding technologies is waveguide contact shielded connectors, which feature a conductive shield material around the connector’s body. These contacts can be used in a variety of applications, including high-frequency and digital applications. Contacts also offer low contact resistance and high current carrying capacity.

Fingerstock

Fingerstocking is another common shielding technology used to protect both RFI and EMI sources. It is made from thin sheets of conductive material that are typically sewn onto a cloth or other material. This is used to prevent the interference from passing through. Fingerstock gaskets can be used in a variety of applications, including computer systems, telecom-related applications, and power supplies. The key benefits of fingerstocking are its excelIent shielding effectiveness and its ability to conform to irregular surfaces.

Gaskets

Gaskets are a type of shielding technology used to reduce both RFI and EMI interference. Gaskets are made from a range of conductive and non-conductive materials, which are then resiliently mounted to provide an effective barrier against interference. Gaskets are designed to absorb or reflect interEference and block their passage through the material. They can be used on a wide range of applications, such as enclosures and electrical systems. The key benefits of using gaskets to shield against RFI and EMI are their ease of installation and their high shielding effectiveness.

In conclusion, by using contacts, fingerstock, and gaskets in combination, it is possible to shield a range of services and products from both RFI and EMI sources. The applications of each of these shielding technologies vary, but they all provide excellent protection from interference. Knowing the applications and working principles of each of these technologies can help you to make an informed choice as to which is the best solution for your shielding needs.

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