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RF/EMI contacts, fingerstock and gaskets are designed to provide a comprehensive solution for application-level shielding and EMI/RFI requirements in the most extreme environmental conditions. RF/EMI contacts, fingerstock and gaskets help protect sensitive electrical systems, reduce EMI/RFI emissions and provide superior protection from dust, moisture and other contaminants.

Application Fields

RF/EMI contacts, fingerstock and gaskets provide an effective solution for shielding against unintentional radiation of electromagnetic energy and electromagnetic interference which might otherwise adversely affect electromagnetic compatibility (EMC). They are commonly used in a variety of applications, including cars, industrial systems, consumer electronics, medical equipment, aerospace, defense, telecommunications, and more.

In automotive applications, RF/EMI contacts, fingerstock and gaskets can be used to shield sensors, ECUs, antennas, engine and drivetrain components, ABS systems, and even the dashboard. These materials are available in various shapes and sizes and are typically applied directly to the component or part that requires shielding in the application.

RF/EMI contacts, fingerstock and gaskets are also used in industries and medical applications to provide EMI/RFI shielding. Industries like oil & gas, mining, power generation, aerospace and defense use these materials to help protect proprietary information, secure sensitive sites, and shield equipment from high voltage or electromagnetic disturbances. In medical applications, the materials are used to provide EMI radiation protection and limit interference with implantable medical devices.

RF/EMI contacts, fingerstock and gaskets are a must for compliant products in many jurisdictions globally and are increasingly being looked upon to provide solutions to RF and EMI compliance drastically which in turn raises the bar for embedded and consumer electronics product designers and manufacturers.

Working Principle

RF/EMI contacts, fingerstock and gaskets are designed to absorb and scatter both electric (E) and magnetic (H) fields of electromagnetic energy, thereby reducing the amount of such fields which may adversely affect the operation or performance of components, circuits, or systems.

RF/EMI Contacts, fingerstock and gaskets are made from flexible, conductive elastomers or conductive foam which are then applied directly to the component or part that requires EMI shielding in the application. The material is designed to offer low resistance and ensure good electrical contact, which helps protect both the device and its environment.

The elastomer material can also be laminated to card, paperboard, or other non-conductive substrates, and then die-cut to form the desired shape. The resulting part is a single contact element, with electrical e.g., signal/data transmissions and contactability, from one side of the contact to the other side. This helps avoid the need for a separate EMI shield as the contact element itself provides the shielding.

To maximize the shielding effectiveness, RF/EMI contacts, fingerstock and gaskets are usually used in combination with conductive adhesive or solder. This provides a secure connection between the conductive elements and surface of the part. By applying conductive adhesive or solder while installing the contact, high contact resistance is eliminated and the overall shielding performance is maximized.

To conclude, RF/EMI contacts, fingerstock and gaskets are a highly efficient and cost-effective solution for a broad range of application fields, from automotive to medical and industrial. As the demand for EMI/RFI shielding solutions continues to grow, these materials will continue to find applications in new and innovative ways.

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