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Shielding

New Flame-Retardant Shielding Silicone Meets UL 94 V-0

 

Specialty Silicone Products (SSP) now offers a 60-durometer, nickel-graphite shielding silicone that meets the flammability requirements of UL 94 V-0, a flame-testing standard from Underwriters Laboratories (UL). Flame-retardant SSP-502-60-V0 is supplied as a ready-to-mold compound, fully-cured conductive sheet stock, or as continuous rolls. This particle-filled silicone … [Read more...]

Economical EMI Shielding Wire Mesh Gaskets Offered With or Without Elastomer Cores

 

Tech-Etch manufactures EMI shielding knitted wire mesh, which can be used as economical gaskets for EMI/RFI shielding. All knitted mesh configurations are supplied on spools, coils or cut to length as individual gaskets with or without end seals. Standard profiles for a wide variety of applications include round, round with tail, double round with tail, half round (D) and … [Read more...]

Troubleshooting Radiated Immunity for Medical Products – Case Study

 

Introduction Companies making medical products have much more stringent requirements now that the new IEC 60601-1-2 (Edition 4) became effective June 17, 2017. One of the many changes included increased radiated immunity requirements in several specific wireless and communications bands (Table 1). Highlights of all the changes are included in Interference Technology’s free … [Read more...]

New Heat Shrinkable Tubing Technology Introduced

 

Zeus PTFE/FEP Dual-Shrink® tubing is constructed with an exterior of heat shrinkable PTFE and an inner layer of FEP. The PTFE outer layer shrinks tightly over inserted parts while the FEP melts and flows into a solid or near-solid encapsulation. The fit is so tight it can withstand the most severe stresses involving pull or vibration. Dual-Shrink® tubing is designed to provide … [Read more...]

New Family of Electrically Tuned Polymers for Composites Applications Developed

 

ARC Technologies of Amesbury MA has teamed with CompositeTechs LLC of Amesbury MA to promote development of a new series of electrically tuned polymer formulations for the plastics and composites industries. These general formulations can be customized to meet the processing and performance specification requirements for extrusion, injection molding, thermoforming, and … [Read more...]

Brochure Describes Photo Etching of Thin Metal Parts, Board Level Shielding and Flexible Circuits

 

Capabilities brochure describes how the photo etching process provides Tech-Etch the flexibility to produce prototype quantities and large production runs of intricate parts for many diverse mechanical and electrical applications, without the high cost and long lead times of hard tooling. Custom light-gauge parts are produced with intricate patterns, precise tolerances and … [Read more...]

Simulating EM Shielding for Aeronautical Applications

 

The airframe of an aircraft can provide some measure of shielding against high-intensity radiated fields (HIRF), but this is compromised by doors, windows, seams, access panels and components interfaced to the airframe such as antennas used for communication and navigation. Composite materials are increasingly used in aeronautical applications due to their relatively light … [Read more...]

EMI Troubleshooting – Step-By-Step

 

In this article, I’ll describe the steps I usually take to troubleshoot the top four EMI issues, conducted emissions, radiated emissions, radiated immunity, and electrostatic discharge. Of these, the last three are the most prevalent issues, with radiated emissions typically being the number one failure. If your product or system (EUT) has adequate power and I/O port filtering, … [Read more...]

New Series of Vector Network Analyzers Released

 

Legendary support and quality meet ease-of-use and affordability. The Tektronix TTR500 Series 2-port, 2-path vector network analyzer is our latest breakthrough – an unmatched combination of measurement performance and convenience at 40% lower price than leading benchtop alternatives! It’s used to measure filter and antenna response, as well as shielding effectiveness, as … [Read more...]

Military EMI/RFI Shielding Products Available

 

Tech-Etch manufactures a variety of EMI Shielding products for critical military and aerospace applications. Supershield is a silicone elastomer filled with conductive metal particles to provide high EMI shielding effectiveness plus an environmental seal. The Supershield family uses eight basic conducting media with material specifications to MIL-DTL-83528. It can be supplied … [Read more...]

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