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Radio Frequency Interference (RFI) and Electromagnetic Interference (EMI) are interfering signals that may be picked up by telecommunication or electrical equipment, such as radios, satellites, computers, cell phones, and other sensitive electronic devices. RFI and EMI may disrupt or interfere with communications, signal processing, data processing, operation of electrical systems, and other activities. RFI and EMI mainly come from two sources: electric and magnetic fields produced by man-made systems and natural sources such as the sun’s radiation. In order to protect people and devices from the ailments of RFI and EMI, contacts, finger stocks, and gaskets are employed.

Contacts are designed to provide a reliable electrical connection. They are used for a variety of applications, including RJ45 and data/modem/ISDN connectors, telephone systems, cell phones, wireless antennas, and computer peripherals. Contacts are usually constructed of copper, gold, or chrome and are designed to last for a long time. In addition to contacts, finger stock is often used to provide a reliable electrical connection. Finger stocks are usually made of a metal or plastic material and are typically pressed into the contact pads of a connector or PCB. They can also be soldered onto the contact pads.

Gaskets are made to absorb or reduce radio frequency and electromagnetic interference. They act as a shield between two contact surfaces, and are often placed between a contact and circuit board. Gaskets can be constructed of materials such as EMI foam, foils, rubber, neoprene, and PVC. These materials help to reduce RFI and EMI by blocking the fields and shielding the contact surfaces from each other and reducing their capacitive and inductive coupling.

RFI and EMI can have a negative effect on communication, signal processing, data processing, the operation of electrical systems, and other activities. Therefore, it is important to use contacts, finger stocks, and gaskets in order to protect people and devices from the ailments of RFI and EMI. Contacts, finger stocks, and gaskets help to provide a reliable electrical connection and reduce the levels of RFI and EMI. By using these products, electrical systems can remain operational and protected from the harmful effects of RFI and EMI.

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