Circuit & System Protection


EMI shielding solutions

30 January 2019 Circuit & System Protection

Laird Technologies supplies a range of EMI protection, shielding and electromagnetic compatibility (EMC) products for suppressing interference and meeting immunity requirements; isolating offending circuits through filtering, grounding and shielding, and desensitising devices by increasing their immunity to susceptible circuits. This product range includes the following:

Electrically conductive elastomers, ideal for applications that require environmental and EMI shielding. A wide range of conductive filler materials is available in extruded, moulded die-cut, dispensed form-in-place, printed and coated formats.

Form-in-place gaskets, produced by an automated system for dispensing conductive elastomer EMI shielding and grounding gaskets onto metal plastic substrates. It is ideal for mobile phones, PDAs, PC cards, cellular base-stations, radios, and many other compartmentalised casts or plastic enclosures and packaged electronic assemblies.

Wire mesh gaskets which are versatile and provide effective shielding. Knitted gaskets can be made from a variety of metal wires, including monel, tin-plated copper-clad steel or aluminium.

For board-level shielding, Laird offers a traditional metal enclosure, single- and two-piece EZ Peel, as well as new convergence products. The latter incorporates a stamped metal housing and over-moulded, electrically conductive elastomer, or thermal interface material, that is designed to meet the specific needs of an application.

Microwave absorbing materials are coatings with electrical or magnetic properties that have been altered to allow absorption of microwave energy at discrete or broadband frequencies. Laird offers a wide range, including die-cut elastomers, foam, thermoplastics and custom solutions to aid in internal cavity resonances, antenna pattern shaping and high-frequency interference.

Finger strips for enclosure doors, cabinets and boxes, made from an alloy selection that provides an optimal combination of spring and low compression force to meet a wide variety of applications. These solutions offer excellent corrosion resistance, solderability and palatability. They are effective for EMI shielding and can be used in a variety of slotted and grounding contact applications.

Also available is a lineup of fabric-over-foam shielding gaskets, conductive foam, conductive fabric and conductive tape. Fabric-over-foam gaskets are galvanically compatible with most mating surfaces, and offer high abrasion and resistance, high conductivity and shielding attenuation. They are ideal for applications requiring low-pressure force.

Finally, conductive foam provides effective EMI shielding for microprocessor speeds in computer and telecommunications equipment. Conductive fabric combines highly conductive metals with lightweight fabric to meet a diverse range of shielding requirements. Conductive tape shielding is lightweight, thin and flexible, and offers excellent conductivity, conformability and durability.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Varistors for automotive applications
Future Electronics Circuit & System Protection
TDK Corporation has announced the addition of two new varistors to its AVRH series for automotive applications where both are characterised by the high electrostatic discharge-withstanding voltage demanded to ensure the safe operation of safety-critical automotive functions.

Read more...
Clearing the Static: The importance of ESD wrist straps
Actum Electronics Circuit & System Protection
ESD clothing plays a pivotal role in preventing that people do not charge the products that they are working with.

Read more...
Clearing the Static: ESD clothing and footwear
Actum Electronics Circuit & System Protection
ESD clothing plays a pivotal role in preventing that people do not charge the products that they are working with.

Read more...
Single-phase EMC filters
RS South Africa Circuit & System Protection
TDK Corporation has expanded its portfolio of single-phase EMC filters for AC and DC applications up to 250 V and rated currents from 6 to 30 A.

Read more...
Clearing the Static: The significance of cleaning in ESD control
Actum Group Circuit & System Protection
It is essential that ESD-protected workplace areas and equipment (tables, floors, work mats, trays, tools, machine elements) are cleaned with specialised antistatic cleaners.

Read more...
Clearing the Static: ESD protective packaging
Actum Group Circuit & System Protection
The primary objective of ESD protective packaging is to prevent ESD incidents within the packaging and facilitate the dissipation of charges from the outer surface.

Read more...
New NeoMesh protocol stack version
CST Electronics Circuit & System Protection
NeoCortec has released an updated NeoMesh protocol stack version 1.6 firmware for its NC2400 and NC1000 module series, which now supports the new Sensirion SHT4xA temperature and humidity sensor series.

Read more...
Robust case for sensitive electronics
Actum Electronics Enclosures, Racks, Cabinets & Panel Products
nVent Electric plc announced a new addition to its SCHROFF portfolio of products: a robust case family designed especially for protecting sensitive electronics in harsh environmental conditions.

Read more...
NewFeed feeder protection relay
NewElec Pretoria Circuit & System Protection
The NewFeed Feeder Protection Relay has been designed to protect the connection between solar farms and conventional power grids in both low voltage (LV) and medium voltage (MV) distribution settings.

Read more...
Clearing the Static: Fundamental principles of static control
Actum Group Circuit & System Protection
The use of grounding products and testing equipment becomes essential to verify the proper functionality of static control systems in the work environment.

Read more...