EMI Shielding Solution in Data & Communications

EMI SHIELDING SOLUTION IN DATA & COMMUNICATIONS

In today’s environment, data centers are gaining importance due to the trend of outsourcing data access through the Cloud, while supporting bandwidth-intensive applications. Data center managers want to squeeze every bit of performance out of the data center architecture. Network equipment manufacturers need to consider Electromagnetic Compatibility as a potential inhibitor to maximize speed and efficiency in data centers.

Increases in data speed lead to commensurate increases in noise and heat. Greater connectivity supporting more wireless devices results in more signals and increased connector heat. All of these changes related to 5G place greater emphasis on appropriate EMI shielding, and as 5G evolves, engineers will need to meet the challenges of designing for faster data speeds, increased connectivity, and higher frequencies.

EMI Shielding data communications application

Data Center Racks

	Application	Key Product Features	Benefits
Spring Fingers	Strips for rack grounding	Suitable for repeated insertions	Reliable grounding of racks to enclosure
Knitted Wire Mesh	Door gasket	Available with a soft core	Robust gasket
EMI Honeycomb vent	Shielding over air inlet/outlet apertures	Allows good airflow and provides high level of EMI shielding	Improved EMI shielding over air inlet/outlet aperture
Conductive Fabric over foam	Door gasket Strips for rack grounding	Very soft and conformable high wear resistance	Reliable grounding of racks Provides door seal with a low closure force

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Network Switches

Product Type	Application	Key Product Features	Benefits
Conductive fabric over foam	Chassis cover gasket	Soft and conformable	Provides EMI shielding on cover with low closure force
Metal spring fingers	Grounding to chassis	Suitable for repeated insertions	Reliable grounding
Metal spring fingers	Grounding of chassis to enclosure	Suitable for repeated insertions	Reliable grounding

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2U RACK Mount Server

Product Type	Application	Key Product Features	Benefits
Conductive fabric over foam	Chassis cover gasket	Soft and conformable	Provides EMI shielding on cover with low closure force
Metal spring fingers	Grounding to chassis	Suitable for repeated insertions	Reliable grounding
Metal spring fingers	Grounding of chassis to enclosure	Suitable for repeated insertions	Reliable grounding

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Satellite Communications

Shielding Type	Application	Features	Benefits
Conductive Elastomer	Enclosure	• Fully cured silicones or fluorosilicone loaded with a variety of highly conductive particles providing superior EMI/RFI shielding performance combined with excellentenvironmental sealing.	• Ensure complete electrical conductivity is maintained across the joint • Ensure galvanic compatibility whilst providing low contact resistance between mating surfaces
Knitted Wire Mesh		• The mono-filament interlocking loop construction gives strength while allowing it to confirm to almost any size or shape. • A selection of elastomer cores are available to meet conditions such as temperature range, compression set, compression force.	• Delivers good galvanic match with mating flanges, thereby limiting the possibility of corrosion between gasket and flange. • Excellent radio frequency interference (RFI)/electromagnetic interference (EMI) shield between two metallic surfaces.
Form In place	Internal module	• Elastomer compounds directly dispensed onto component hardware or enclosure via a pressurized fluid dispensing system. • RFI/EMI shielding and/or environmental seal for dust and moisture.	• Suited to applications where small, intricate EMI gasket profiles are required, such as on multicompartment labyrinth housings with minimum gaskets land area where traditional larger types of gaskets are not suit. • Reduces assembly costs associated with traditional gaskets.
HoneyComb Vent	I/O Panel	• Hi-impact ABS UL94V-0 fire retardant moulding thick aluminum honeycomb and a nickel/copper fabric gasket to ground the honeycomb to the metalwork	• Deliver good air flow is required for cooling and ventilation but where EMC compliance must be ensured.

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