GASKETS

TECKNIT EMI SHIELDING PRODUCTS

STANDARD PRODUCTS AND SPECIALS

This catalog presents a technical review of the TECKNIT EMI Shielding Product Line. It is intended to serve as a guide to the selection, engineering, and specification of materials and components for EMI or EMP shielding, grounding, and static discharge. While the standard products illustrated in this catalog cover a broad range of materials and applications, TECKNIT has consistently provided successful solutions to an even broader range of special problems. We invite inquiries about our capabilities and recommendations for any shielding, grounding, or static discharge application.

BASIC DESIGN CONSIDERATIONS

The following will serve to introduce basic mechanical and electrical packaging design considerations for effectively achieving Electromagnetic Compatibility through the use of TECKNIT EMI Shielding products described in this catalog. Terminology used, in some cases, is somewhat unique to the subject, and is described in the Glossary of Terms included in a separate section of this catalog. Electronic equipment/systems, which operate effectively within design parameters without causing or suffering unacceptable performance degradation due to electromagnetic radiation or response, are described as having Electromagnetic Compatibility (EMC).

A review of the following electromagnetic spectrum describes the area in which TECKNIT products can provide the designer with the required shielding levels of Electromagnetic Interference (EMI) protection for electronic equipment and systems. Both mechanical and electrical design aspects should be carefully considered in the selection of EMI Shielding products. Mechanical considerations are significant because of physical dimensions and tolerances involved in construction of electronic equipment and systems. These factors may seriously impact on the electrical performance characteristics of EMI shielding products. It is thus essential that the designer adequately consider the origin and methods of suppression of EMI.

The EMI Shielding Design Guide section of this catalog contains valuable theoretical and practical information on “how to select” TECKNIT EMI/FFI shielding materials. In addition, the EMI Shielding Design Guide provides specific information on EMI shielding requirements for electronic circuits which either radiate electromagnetic energy or are susceptible to electromagnetic interference.

TYPES OF INTERFERENCE

• RFI - Radio Frequency Interference: unwanted radiated electronic noise (broadcast) 10 kHz to 1000 MHz
• EMP - ElectroMagnetic Pulse: broadband, high intensity transient phenomena, such as lightning or nuclear explosion
• EMI - ElectroMagnetic Interference: dc to 300 GHz
• ESD - ElectroStatic Discharge: A Transient Phenomena Involving Static Electricity- Friction