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Interference Technology

For EMI / EMC Engineers

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Shielding

Laird Technologies and Employees Contribute to Chinese Earthquake Relief

 

Laird Technologies, a unit of Laird PLC, well known for its EMI/RFI shielding and other high tech products, has announced a corporate donation of $100, 000 for relief efforts in the earthquake devastated Chengdu Province of China. Also, individual Laird employees in China have donated a total of over 35,000 in a grass roots effort to assist their fellow countrymen. Marty Rapp, … [Read more...]

Silicone Gasketing Material Meets Requirements of MIL-DTL-83528

 

A family of conductive silicon elastomers from SAS Industries has been crafted for applications that require extremely high shielding effectiveness, environmental sealing, reliability, and durability. These elastomers are a unique composite of high quality silicone and conductive microscopic particles manufactured to strict formulations to yield gasketing materials that meet … [Read more...]

Three-Layer Filters Provides Dust Filtering and EMI Shielding

 

The ATI 3-layer filters from Alco Technologies is a superior dust filtration, EMI shielding filter for minimum air flow requirements. Aluminum extruded profiles surround three layers of aluminum screen and are welded in place. Three layers of wave-formed aluminum wire screen, each with a decreased depth are layered together in an arrangement resembling the look of a continuous … [Read more...]

Combo Strips Forestall Both EMI and Environmental Problems

 

The TechMesh© Combo Strip and Gasket from Leader Tech have been crafted for use in applications requiring EMI/RFI shielding and environmental sealing. These materials are comprised of monel or tin-plated, copper-clad steel knitted wire mesh that are bonded to neoprene sponge, silicon sponge, or or silicon solid elastomer strips. The wire mesh provides shielding performance up … [Read more...]

EMI Suppressant Tubing Guards Against Both Conducted and Radiated Interference

 

EMI suppressant tubing from CAPCON, Inc. provides a simple, low cost efficient means for suppressing unwanted EMI. This product can be slipped over standard wires and cables (insulated or uninsulated) and suppresses both conducted and radiated interference. Completely flexible and lightweight, this tubing can be used in temperatures from -55 degrees to +250 degrees C without … [Read more...]

Conductive Materials Available in a Wide Variety of Formulations

 

E-Fill™ from Sulzer Metco is an aluminum compatible nickel graphite conductive filler that offers advanced corrosion resistance and stability in harsh environments. It is especially well suited to applications involving coated flanges. The angular shape of E-Fill™ coupled with a proprietary hard nickel coating gives gaskets the necessary “bite” needed to ensure optimal … [Read more...]

Nickel Acrylic Coatings Provide Cost Effective EMI Shielding

 

Nickel acrylic paints in the ECP 500 Series are now available from TBA Electro Conductive Products (ECP). Surface coatings offer the simplest and most cost effective solution for EMI problems in a wide range of applications. They can be applied with minimal training and equipment requirements using conventional paint spray techniques. ECP 502/552 nickel acrylic coatings deliver … [Read more...]

Conductive Tabs Provide Low Impedance

 

Conductive grounding from Chomerics provide EMI protection by establishing low impedance ground paths between electrically conductive elements in a chassis or component. These stabs forestall interference from the surface currents that “excite” metal components and thus create “phantom” fields. The tabs can be used to provide the required grounding paths economically as … [Read more...]

Crucial RF Shielding Selection Considerations

 

Gary Fenical Laird Technologies INTRODUCTION Designers must attenuate RF signals for various reasons. Since a product cannot be legally marketed unless it meets EMC requirements, designers must curtail RF signals above a certain limit. It is important to consider RF shielding materials at the beginning of a design project because choosing the correct kind of shielding upfront … [Read more...]

EMI Shielding and Optical Enhancement to Touch Screens

 

Electromagnetic attenuation features can be incorporated as an integral part of touch screens rather than as a separate component in those display applications requiring shielding for EMI/EMC compliance. Various enhancement techniques and design considerations will be reviewed. Features and methods employed will vary with particular touch screen enhancements and will include … [Read more...]

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