Urethane, thermoplastic elastomer (TPE) and even silicone core material, which provide low compression and ensure long term reliability of gasket performance in a wide variety of applications.įor more information, visit the product page here.High abrasion and shear resistance due to metallized fabrics that incorporate proprietary coatings that do not degrade shielding performance.
Even with the overall advantages of shielding, the most cost-effective approach is to use a combination of circuit suppression/hardening and shielding.įabric Over Foam Soft Shielding with Durable DesignĮMI suppression isn’t easy to achieve if a gasket doesn’t fit your application’s requirements. Plus, shielding works for both emission suppression as well as susceptibility problems.
In addition, shielding does not create timing problems and waveform distortion it does not decrease system reliability and it reduces crosstalk. Since the shielding is not inserted into the circuit, it does not affect the high frequency operating speed of the system, nor does it affect the operation of the system should changes be made to the design in the future. Shielding is the only non-invasive suppression technique. The use of slower speeds with reduced bandwidth will help to desensitize the circuit to external magnetic susceptibility fields. These techniques will result in a desired decrease in the high frequency and the circuit bandwidth, and a corresponding undesired decrease in both the operating speed and system reliability. The first approach is to operate the circuit at the slowest speeds consistent with the functionality of the system, lay out the PCB with the smallest possible loop areas (especially the high speed devices), insert suppression components such as filters, ferrite beads, and bypass capacitors into the circuit to reduce its bandwidth. There are two approaches that can be used to reduce the emission from the circuit board.