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RFI and EMI shielding is a very important feature for many types of electrical and electronic equipment. The use of contacts, fingerstock, and gaskets can help reduce interference caused by electromagnetic fields (EMF) or radio-frequency interference (RFI). The following will discuss the various applications and working principles of the three options.

Contacts, Fingerstock and Gaskets

Contacts are typically made of copper, brass, bronze, or other metals that can easily be soldered or welded. They are often found in power supplies and other areas of electronics equipment where they make contact with other components to either send or receive an electrical signal. Finger stock is often made of a similar material, but is usually composed of two flat pieces which are joined together with a coiled spring. The spring allows the two pieces to move together, and helps create strong, reliable connections. Gaskets are used to provide an additional layer of protection between contacts. They are usually made of rubber, which has a high dielectric strength, and they help reduce interference.

Application Field

Contacts are commonly found in switches, relays, circuit breakers, and other types of electrical equipment. In power supplies, contacts serve as the primary connection to other components. Contacts provide a reliable connection and help reduce interference by preventing signal loss and electrical noise. Fingerstock is also used in switches and relays, as well as circuit breakers and contactors. Gaskets are used to provide an additional layer of protection. They are particularly useful in electrical and electronic equipment since they help reduce electromagnetic interference (EMI) caused by radio-frequency interference (RFI).

Working Principle

Contacts are used to connect two or more electrical or electronic components together. They are usually electrically conductive and create a reliable connection to ensure a stable current flow. Fingerstock is also used to connect two components. The two flat pieces are joined together with a coiled spring and then make contact when the electrical current passes through them. This helps create stronger connections and reduce interference. Gaskets are made of rubber or other materials and are placed between contacts. This provides an extra layer of protection and helps reduce any interference caused by EMF or RFI.

Conclusion

Contacts, fingerstock, and gaskets are all important components that help reduce interference and improve the reliability of electrical and electronic equipment. Contacts are typically used in power supplies and to connect two components together. Fingerstock is often used in switches, relays and circuit breakers, while gaskets provide an additional layer of protection. These components all work together to reduce RFI and EMI and ensure a stable connection.

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