30502

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RF, or Radio Frequency interference and EMI, or Electro Magnetic Interference, is now recognized and controlled in many industrial applications, with 30502 contacts, fingerstock, and gaskets being the typical components used to control the interference.

In many cases, the physical size and shape of the gasket makes a difference in the overall 30502 performance and must be sized correctly for the application. The number of bends in the fingerstock used to contact the gasket also affects the performance.

30502 Contacts

30502 contacts, or contact strips, are typically formed from metal sheet and are made by a process of bending, crimping, and welding. The contact strips are designed to create a "pinch point" effect when compressed against the gasket material, creating an EMI enclosure. Contacts can be relatively inexpensive and are mainly used for low-performance requirements.

Fingerstock

Fingerstock, or stamped wireforms, are used for more robust applications where the contact force needs to be increased to ensure proper contact with the gasket material. The fingerstock is sized to fit the application and the number of bends required. The fingerstock is typically made from sheet steel or stainless steel and can be formed into any shape required.

Gaskets

Gaskets are the primary component in the 30502 system. They are designed to reduce RF and EMI interference by shielding conductive material from contact with other conductive materials. Gaskets can be made from a variety of materials including rubber, metal, and plastic. Each type of gasket material has its own set of properties that must be considered when selecting gaskets for an application.

In order for a 30502 system to provide effective EMI or RFI protection, the contact strips, fingerstock, and gasket must work together. The contact strips provide the force to create a contact point between the gasket material and the fingerstock. The number and size of bends in the fingerstock determine how much contact pressure is applied to the gasket when the contact strips are compressed. The gasket material must be selected based on the performance requirements of the application.

The 30502 contacts, fingerstock, and gaskets are essential components for EMI and RFI control in many industrial applications. The components must be chosen carefully and sized appropriately for the application in order to ensure that the system provides the desired performance.

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