4049AB22100088

RFI and EMI - Contacts, Fingerstock and Gaskets

4049AB2210008 is a range of electrical contact materials and design features that are used to minimise the risks associated with Radio Frequency Interference (RFI) and Electromagnetic Interference (EMI).

Application Field

The 4049AB2210008 offer very effective solutions in applications such as data transmission and communications, safety systems, electrical equipment and instrumentation and control devices. Contacts are also an effective means of reducing EMI in automotive and military systems as well as broadcast and satellite transmissions. Contacts provide an integral part of the electrical pathway between two circuit elements that may need to be shielded to ensure maximum performance and reliability. Contact materials that have high electrical conductivity and excellent physical characteristics are of paramount importance.

Working Principle

The contacts comprise of a conductive metal insert (fingerstock) that is usually located in a housing to form an electrical contact. The contact material should be selected to provide high electrical conductivity, low contact resistance, low fatigue and to ensure continuity of operation for a sustained period of time. Fingerstock contacts are typically made from a variety of different materials that include copper, brass, stainless steel and nickel alloys. These materials can be manufactured using a variety of different plating processes such as gold or silver plating, electroless nickel plating, anodising or dip-coat. It is also important that the contact material has very good edge protection to ensure durability and provide a wide range of operating temperatures.

Incorporating gaskets into the contact components helps to reduce the risks associated with RFI and EMI. Gaskets are used to reserve the contact area while aiding electrical conductivity. They are usually made from a combination of polymers with reinforcement material such as fibre or copper mesh. The most common types of gaskets used in contacts are graphite, silicone, PTFE, EPDN and neoprene.

It is also necessary to ensure that the contact design and finishing are optimised to provide a reliable connection. This includes a careful consideration of the housing design, the contact material, the fingerstock and the gasket to ensure the best performance and reliability. All of these elements need to be carefully selected to ensure that the contact design meets the required performance and safety standards.

The use of 4049AB2210008 is essential in applications requiring an effective and durable electrical contact solution that is also capable of minimising risks associated with RFI and EMI. The necessary components must be selected to ensure maximum performance and reliability while also ensuring that the contact design meets the required safety and performance standards.