RFI and EMI - Contacts, Fingerstock and Gaskets

RFI and EMI are acronyms for the phrases "Radio Frequency Interference" and "Electromagnetic Interference" respectively. These terms refer to the interference caused by electronic devices or networks caused by the transmission of electromagnetic waves. When a device such as a computer or mobile phone transmits or receives data, electromagnetic waves are emitted.

These waves can interact with other objects in their vicinity, creating interference with other signals or appliances. Many electronic devices such as computers, cellular phones, and radios come equipped with built-in components designed to prevent this interference. Other devices, like shields, filters, and conductive housings, must be purchased and used to prevent the interference. The use of contacts, fingerstock, and gaskets is one common way to prevent RFI/EMI.

4797AB22101500 Contacts

4797AB22101500 contacts are devices designed to provide a low contact resistance between two conductive surfaces. This low resistance allows the smooth electrical current flow required to avoid interference. These contacts feature contacts made from premium metal and gold and are designed for applications up to 1000V. They provide superior performance in terms of EMI/RFI rejection.

The contacts feature a low profile design with flat springs for increased electrical conducting area. This allows the contacts to achieve a lower contact resistance which reduces the potential for leakage current and potential inductive noise in a circuit.

Fingerstock

Fingerstock is a flexible copper material that is placed between connectors and fingerprint solutions. This material helps provide greater flexibility between different device components and helps redirect current through the circuit, eliminating RFI and EMI. The fingerstock material also helps provide environmental shielding, protecting circuits from outside disturbances.

Fingerstock is designed to provide a low impedance, low impact solution that directs the EMI/RFI away from sensitive electronics. It is also typically self-contained, allowing for easy installation and maintenance. Fingerstock is frequently used in applications involving high-density data storage, medical equipment, and other sensitive electronics.

Gaskets

Gaskets are used to provide an effective shield between two different surfaces. This shielding prevents the transmission of RFI/EMI and limits its effects on other electronic components. Gaskets are typically made from an electrically conductive material like copper or aluminum, and come in different shapes and sizes depending on the application.

Gaskets are often used in combination with other shielding solutions like contacts and fingerstock to provide the best possible coverage. They are typically used in areas like electronic housings or where multiple cables pass through the same space. Gaskets also help provide a more aesthetically pleasing look to an electronic device.

Conclusion

4797AB22101500 contacts, fingerstock, and gaskets are all effective solutions for providing protection against RFI/EMI in electronic devices. Each solution provides a different type of protection, and they must be used in tandem in order to effectively reduce interference. The use of these shielding solutions is essential for ensuring proper performance in a variety of electronic applications.