RFI and EMI - Contacts, Fingerstock and Gaskets

RFI and EMI contacts, fingerstock, and gaskets are the shielding components that keep electromagnetic interference where it belongs. Fingerstock usually means beryllium copper strips with spring fingers that compress between metal surfaces, while gaskets come in fabric-over-foam, conductive elastomer, wire mesh, or spiral-wound metal forms. You'll find these parts inside enclosures, chassis doors, server racks, medical imaging equipment, military radios, and anywhere else that needs to pass emissions testing or block outside noise from corrupting signals. The sub-categories matter more than the category name suggests. Fingerstock comes in dozens of profiles, from clip-on to adhesive-back to solder-mount, and the plating choice between tin, nickel, or gold affects both conductivity and corrosion resistance in the field. Gaskets split between compression-only materials like conductive foam and form-in-place or molded elastomers that seal against dust and moisture while also shielding. When sourcing, buyers typically check the shielding effectiveness rating in dB across a frequency range, the compression set data, the base material and plating spec, and whether the part carries a UL94 flammability rating. Lead time versus price is the usual tension here. A standard fingerstock profile might be off the shelf at a franchised distributor, but a specific length, plating, or adhesive backing can push lead times to twelve weeks or more. That is where independent distribution helps. Some buyers also worry about counterfeit or aged stock, particularly with elastomer gaskets that degrade over time, so date codes and original packaging matter. If you need a specific fingerstock profile, a cut-to-length gasket, or a shielding contact that went obsolete, check the current stock and request a quote at icxing.com. The team can usually confirm availability and date codes within a day or two.