The Importance of EMI Gaskets in Electromagnetic Interference Mitigation
Electromagnetic Interference (EMI) poses a significant challenge in the electronic devices industry. It’s where EMI gaskets prove their worth, acting as an essential component providing a conductive path to block EMI, effectively mitigating interference by absorbing, reflecting, or refracting electromagnetic waves.
Diverse EMI Gasket Profiles and Their Applications
EMI gaskets come in various profiles designed to fit specific application scenarios.
- D Profile Gaskets – D Profile gaskets, notable for their ‘D’ shape, are engineered for applications requiring low compression force but still demand superior EMI shielding. Typically, they find use in delicate or lightweight devices where unnecessary pressure could cause damage.
- R Profile Gaskets – R Profile gaskets, round-shaped by design, are suitable for high EMI shielding performance but with low compression force. Their versatility and adaptability make them the ideal choice for various applications.
- L Profile Gaskets – L Profile gaskets are specialized solutions designed to fit into spaces where spatial constraints may render conventional gasket profiles inadequate. They are often used in compact, space-constrained devices requiring effective EMI shielding.
- P Profile Gaskets – P Profile gaskets are high-performance EMI solutions, preferred when applications require high compression force and superior EMI shielding. They’re most suitable for robust and rugged applications, where maximum EMI shielding is crucial.
The Innovation of EMI Fabric Over Foam Gaskets
The E-Series profile gasket, a high-performance fabric-over-foam continuous strip gasket, is a standout option among EMI gaskets. It combines robust EMI shielding with excellent resistance to various environmental factors.
Key Attributes and Advantages of EMI Fabric Over Foam Gaskets
With their closed cell foam core, fabric over foam gaskets provide an efficient environmental seal, serving as dual-purpose solutions for EMI and environmental sealing. Employing JEMIC’s EMI gaskets, organizations can significantly reduce their cost and assembly time, all the while ensuring optimum EMI shielding.
Detailed Specifications of JEMIC’s EMI Gaskets
JEMIC’s EMI gaskets excel in shielding effectiveness, demonstrating >85dB attenuation from 20 MHz to 10 GHz. The electrical resistance is < 0.05 Ohms/Sq, with a compression deflection of < 1 lb/in. They show a compression set of 15% at 70°F (21°C) and 19% at 158°F (70°C), with the service temperature ranging from -40°F (-40°C) to 158°F (70°C).
The Value of Customization Options for EMI Gaskets
JEMIC offers value-added modifications for all EMI shielding products, including fabric-over-foam gaskets. These options allow the assembly of multiple components into a single shielding element, thus reducing assembly costs and time.
EMI fabric over foam gaskets is a significant advancement in EMI shielding. With their customization options, impressive specifications, and dual-purpose environmental seal, they offer a cost-effective and efficient solution for combating electromagnetic interference.