Select gasket materials that are close to the enclosure material on the galvanic series chart. If they are far apart, use a conductive coating or plating to bridge the potential difference.
RFI and EMI - Contacts, Fingerstock and Gaskets Component Intelligence
Engineered shielding solutions to maintain enclosure integrity and suppress electromagnetic interference.
What are RFI and EMI - Contacts, Fingerstock and Gaskets components?
RFI/EMI contacts and gaskets are critical for maintaining Faraday cage integrity in electronic enclosures. Selection depends on the required shielding effectiveness (dB), compression force, material compatibility to prevent galvanic corrosion, and mounting method.
How to Choose RFI and EMI - Contacts, Fingerstock and Gaskets Components
Selecting the right shielding component requires balancing mechanical constraints with electrical performance.
Shielding Effectiveness
Match the material and geometry to the frequency range of the interference you need to suppress.
Galvanic Compatibility
Ensure the gasket material is galvanically compatible with the enclosure surface to prevent long-term corrosion.
Compression Set
Verify the gasket's ability to maintain contact force over time without permanent deformation.
Mounting Method
Choose between adhesive-backed, clip-on, or surface-mount (SMT) contacts based on assembly workflow.
Environmental Sealing
Determine if you need a combined EMI/environmental seal or if a standard conductive gasket suffices.
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