Shield Against Electro-Magnetic Interference And Radio Frequency
Electromagnetic Interference or EMI is caused when one electronic device interferes with another through the electromagnetic fields set up by its operation. Another term commonly associated with this is RFI, Radio Frequency Interference.
Electromagnetic shielding that blocks radio frequencies (RF) electromagnetic interference is known as RFI shielding. RFI shielding reduces the electromagnetic field by blocking with barriers made of magnetic or electrically conductive materials.
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Effective RFI Shielding
RFI shielding is applied to electronic enclosures to isolate the emitting electrical devices from the wider environment.
EMI can negatively impact a device’s performance, which is why it’s important that you protect your devices with EMI shielding. At Materials direct we offer a range of custom-cut EMI and RFI shielding materials for a range of Electronic builds.
View All ProductsEMI Shielding Materials
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CFM-P Conductive Foam – 2mm | Limitless Shielding
SKU: 93364Select options- Temperature Range = -10°C to +85°C
- Surface Resistivity / cm2 = <0.01Ω.cm
- Volume Resistivity / cm2 = <0.01Ω.cm
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CHO-SEAL 1287 – A1 – 0.51mm | Parker Chomerics
SKU: 93304Select options- Reduces electromagnetic interference
- Maintains sealing performance
- Suitable for high-reliability applications
- A1 = Adhesive on One Side
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CHO-SEAL 1285 – 1.57mm | Parker Chomerics
SKU: 93279Select options- Reduces electromagnetic interference
- Maintains sealing performance
- Suitable for high-reliability applications
Custom Cut Materials
Materials Direct is approaching this market in a way that is easy to order and specify in Electronics across all industries. Customers who need a certain brand of material that does not appear on the site can apply for us to add this stock to the sites portfolio based on potential usage.
Instant Quotes – Purchasing Made Easy
The main problem for design engineers and purchasing has been until now the quick supply of parts as often the custom pad is one of the last items to be specified in the design of an Electronic assembly.
Materials Direct not only provides an instant quote but gives the buyer the offer of uploading their custom design for it to be manufactured within 24hours if the material is in stock.
What are the dangers of Electromagnetic & Radio frequency interference?
Electromagnetic interference can result in an increase in data loss in electronic devices or cause data loss completely. In the case of digital apparatus, EMI can also affect how the circuit performs and could result in devices not working altogether.
RFI and EMI can come from both man-made and natural sources. Good examples of this would be the man-made interference caused by ignition systems and mobile phones. Natural sources include lightning and solar flares, which also create electrical currents and voltages that result in RFI.
By using materials that provide EMI shielding, you can protect your electronics from both man-made and natural interference. EMI Shielding is particularly important in medical, military, automotive, aerospace, and safety-critical equipment.
How Do RFI Shielding Materials Work?
RFI shielding reduces the electromagnetic field by blocking with barriers made of magnetic or electrically conductive materials. RFI shielding is applied to electronic enclosures to isolate the emitting electrical devices from the wider environment.
Shielding can reduce the effects of radio waves, electromagnetic energy, and fields. A conductive enclosure used to block electrostatic fields is also known as a Faraday Cage.
Material Specifications
At Materials Direct, you’ll find a range of materials that protect against radio frequency and electromagnetic interference.
Heat Reflective
Reflect Heat Away From Your Electronic Assemblies
Conformable
Can Be Molded into Required Shape or Size
Volume Resistancy
Resistance Against High Volume Sound Waves
Electrically Conductive
EMI Materials That Also Conduct Electricity
EMI Protection
Protect Your Electronic Assemblies From Electromagnetic Interference
Quality Assured
We Provide EMI Shielding Materials from Trusted Brands
Materials-Direct offers custom-designed pads and gaskets that provide RFI shielding to reduce the effects of unwanted electromagnetic interference.
These materials are highly electrically conductive and provide a faraday shield to the unwanted emitting energy. Our growing range includes supplies from trusted brands including Laird Technology and Universal Science.
'Having the ability to be supplied with precision cut materials for prototypes within 2 days has been excellent!’
Engineer, Rolls Royce
'We have the need for small to medium batch sizes of various technical materials and Materials Direct have been highly responsive to our urgent needs'
Buyer, Eaton Aerospace
‘We have had to change our designs in the development stages three times. Materials Direct did not charge for these changes as the sizes stayed the same. Excellent!’
Design Engineer, Philips
‘Precision and high quality of parts received have been consistently to a high standard.’
Quality Manager, GEC
Buying online with Materials Direct has proven to be more efficient in time and deliveries, especially when scheduling future orders.
Buyer, Selectronic
Very fast reply, very good order following and delivery in 24H. to recap a very good experience with Materials Direct for a very urgent need. I recommend a lot.
Marien Chevennement
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Frequently Asked Questions
Sectors
Each sector has its own unique requirements and specifications. Materials Direct works to ensure that each sector we supply to, receives the highest quality and best-performing products in relation to their industry and specific need.
Aerospace
The Aerospace industry demands the highest performing, most reliable technical materials to protect their electronic assemblies.
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Automotive / EV
Automotive applications range from Engine management systems to motor drive controllers and custom-made gaskets and pads.
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Industrial
Industrial electronics are robust, have long lifetimes, are cost-sensitive, and suitable for use within difficult environments.
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LED Lighting
Sufficient thermal management in LED lighting can preserve longevity, increase reliability and optimise performance.
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Military
Materials used in military applications need to be of the highest quality and performance, often very rugged to very exacting standards.
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Power
Coupling discreet heat-generating semiconductors to heatsinks remains commonplace in power supply assemblies.
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