EMI/RFI/Shielding/Suppression

EMI shielding equipment is used throughout many typical devices including radios, phones, and hospital MRI scanners. Whether you need to get rid of interfering frequencies with your radio or medical-grade equipment, we have got the supplies for you.

We stock a large selection of EMI shielding supplies, such as EMI gaskets and shielding tape, from well-known brands and manufacturers including Leader Tech, Wurth Electronics, and Laird Technologies. If you know the product you are looking for, you can refine your search by using our handy search filters. Simply select by category, manufacturer, and more.

When you shop with us here at RS, you can be certain to receive only the best quality products for your project, as we only work with the best manufacturers available.

Whether you need EMI shielding tape or RFI protection, we're happy to help. Read on below to find out more.

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What are electromagnetic shields?

Electromagnetic shields are devices designed to lower the electromagnetic field in a space by essentially barricading it in with magnetic or conductive material such as copper.

Electronic shielding is used to prevent other electromagnetic currents from interfering with your device which could affect how it works or cause it to become unusable altogether. It also protects against interfering signals.

What are the different types of electronic shielding materials?

The most popular metals that are used in RFI shielding are pre-tin plated steel, copper alloy770 (also known as nickel silver), copper, and aluminum. They each serve their own purposes and can be used to suit different uses.

Pre-tin plated steel
This is a great low-cost solution to electronic shielding and works well at suppressing lower frequencies. The permeability value of carbon steel is within the low hundreds range, meaning that it provides low-frequency magnetic shielding that the other materials don't.

Copper Alloy 770/Nickel Silver
This is more commonly referred to as alloy 770 and contains copper, nickel, and zinc to aid the EMI shielding applications. This material is usually favored because of its corrosion-resistant properties. This material shields well against frequencies in the mid kHz range up to GHz.

Copper
This is the most reliable material for EMI shielding due to its ability to attenuate electrical and magnetic waves. You'll often find this type of EMI shielding in things like MRI scanning machines and other hospital facilities.

Aluminum
This metal has non-ferrous properties and a high rate of conductivity at almost 60%. When using this material, you need to be extremely careful of corrosion and oxidation that could occur, as this material turns into an oxide over time.

Where might you use electronic shielding?

RF shielding is used to protect medical and lab equipment and machinery from any interfering signals that can affect how they work. This protects against AM, FM, and TV signals.

Other emergency services also use electronic shielding when using things like radios and pagers. It is also used by broadcast facilities so that other frequencies don't interfere.

Why choose RS for your electronic shielding supplies?

We're committed to supplying you with the right supplies at a competitive price, whatever project or job you need your electronic shielding tape for. We stock a wide variety of RF shielding material and EMI protection and suppression supplies that have been manufactured to the highest quality. We've tried and tested them so you'll only get the best products for the task at hand.

For high-quality EMI suppression and RFI suppression supplies, shop here with us at RS. If you have any questions or concerns about our electronic shielding products, please feel free to get in touch we'll get back to you as soon as possible. Looking for tips? Visit our expert hub and discover a world of vast specialist knowledge designed to make your tasks easier.