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Radio Frequency Interference (RFI) and Electromagnetic Interference (EMI) can be a troublesome problem faced by many industries. Finding ways to reduce the levels of RFI and EMI within an area or environment can be essential to ensure proper function and safety of electronic equipment. Contacts, Fingerstock and Gaskets are three products commonly used to reduce RFI and EMI.

Contacts

Contacts are an often used RFI and EMI solution. Contacts generally refer to metal clips, spring contacts, heated contacts, connectors and switches which provide connections between electric lines and earth. Contacts are used for isolation, interrupting a radio frequency signal by providing a path for low-impedance RF currents to be directed to ground. Contacts are designed to have very low resistivity to ensure effective conduction. During installation, contacts should be properly secured to prevent deformation, loss of connection, or disconnection.

Fingerstock

Fingerstock is a type of EMI gasket that is designed to provide the ideal combination of flexibility and high shielding performance. It is commonly used in applications involving vibration and shock, as its metal fingers are designed to move with the vibration and provide consistent shielding. Fingerstock is a great choice for milled or extruded EMI gaskets, as the metal fingers move easily in the narrow gaps between components. Fingerstock is available in a range of materials, including aluminum, copper, brass, and stainless steel, and may be applied with various adhesives.

Gaskets

Gaskets are most commonly used as an RFI and EMI solution. Gaskets are inserted between components in order to provide a physical shielding barrier between them, preventing the transmission of radio frequency signals. Gaskets are available in a range of sizes, shapes, and materials and may be designed to fit specific locations. For example, a customized gasket may be designed to fit around a specific connector or electronic device. Gaskets may be made from rubber or metallic materials and may be coated with conducting material for additional shielding.

In conclusion, Contacts, Fingerstock and Gaskets are all effective solutions for reducing RFI and EMI within a given environment. Each has its own benefits and should be properly chosen for each application. When properly installed, these products can help ensure the proper functioning and safety of electronic equipment.

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