EMI testing in an unusual environment takes more time than testing in a lab environment. Ed Kirchner, Harris Corporation, Melbourne, Floria, USA Jeff Prosser, Rubicom Systems, Melbourne, Floria, USA Grant Lohsen, Georgia Tech Research Institute, Atlanta, Georgia, USA INTRODUCTION A Harris Corporation test team recently performed a shielding effectiveness test on a welded … [Read more...]
EMI Absorber Sheets Work Below 1 GHz
EMI Absorber Sheets from 3M Electrical Markets Division provide enhanced absorption of electromagnetic interference at frequencies below 1 GHz. The 3M™ EMI AB5000S reduce EMI noise and harmonic coupling in electric equipment, cables, or circuits, including any portion covered by a shielded can. They reduce the EMI susceptibility of sensitive components, including RFID or Hall … [Read more...]
Catalog Details Comprehensive Line of EMI/RFI Shielding Products
A 52-page catalog from Tech-Etch details both its custom and standard EMI/RFI product line, including all sizes, shapes, compositions, mounting options, and seal types. This volume includes to-scale technical drawings, compression values, and metal thickness for over 100 BeCu and stainless steel finger stock shielding products. The selection includes low-profile gaskets; soft … [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...]
Sheet Solutions Are Designed With High Permeability and High Temperature Resistance
The WX Series from ARC Technologies provides superior EMI absorption by combining proprietary, high-performance magnetic materials into a flexible, resilient elastomer. Precisely blending refined fillers in exacting ratios with polymer substrate materials creates a thin, flexible EMI-absorbing sheet that will attenuate from 100 MHz to 3 GHz. Surface resistance is >3 MΩ. WS … [Read more...]
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