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TDK Introduces New Ultra-thin, Lightweight Permalloy Film Sheets to Shield Low Frequency Band Noise - TDK Corporation today extended its Flexield family of permalloy thin film sheets with the new IPM01 series, which features high-permeability and high loss in a lightweight and 0.006 mm ultra-thin design - TDK.com
TDK Introduces New Ultra-thin, Lightweight Permalloy Film Sheets to Shield Low Frequency Band Noise

 

NewswireTODAY - /newswire/ - Tokyo, Japan, 2024/05/16 - TDK Corporation today extended its Flexield family of permalloy thin film sheets with the new IPM01 series, which features high-permeability and high loss in a lightweight and 0.006 mm ultra-thin design - TDK.com. TYO: 6762; TSE: 6762

   
 
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• New thin-film sheets are ultra-thin (0.006 mm) and lightweight due to TDK's proprietary manufacturing method, resulting in an 80% reduced thickness, 90% reduced weight, and a +65% [@1HMz] shielding effect;
• Shields low frequency band noise that increases with electrification of automobiles, better than conventional materials and metal shields;
• Available as a sheet (300 mm (L) x 200 mm (W)) and in custom shapes.

This new material effectively shields low-frequency band noise, which is becoming a growing issue in electric vehicles (EVs). Mass production of the product began this month, May 2024.

Over the years, electronic subsystems have been added to gas-powered automobiles for information, communications, and navigation. All of those subsystems generate high-frequency noise measured in megahertz (MHz). EVs also integrate all of those electronic subsystems, but they eliminate internal combustion engines and replace them with electric motors and inverters that generate lower-frequency noise in the kilohertz (KHz) range. Conventional noise suppression in the kHz band requires thick shielding materials, some of which are metal. The problem is that these materials are too bulky and too heavy for EVs, where minimizing size and weight are top priorities.

This new IPM01 series is made of permalloy alloy with extremely high permeability formed into thin film sheets, meaning it can suppress low frequency band noise more effectively than conventional shielding materials and metal shields while reducing weight in automobiles. Compared to conventional TDK products, the thickness is reduced by about 80%, the weight by 90%, and the shielding effect is +65% [@1MHz].

Moreover, this new permalloy will have applications beyond the automotive market. As electronic equipment becomes smaller, thinner, and more multifunctional, noise suppression for smartphones and other devices is becoming increasingly important. By using the permalloy sheet developed by TDK, it is possible to suppress noise at 1/5 the thickness of conventional products.

The IPM01 series in the Flexield family is available as sheet material and in custom shapes. TDK will continue to contribute to the market needs by providing roll products and expanding its lineup of high-temperature types.

Main applications

• Automotive subsystems (operating temperature environment from -40 °C to +85 °C);
• Smartphones and wearable devices.

Main features and benefits

• The ultra-thin film allows use without increasing weight or space (sheet thickness: 0.006 mm);
• 80% reduced thickness, 90% reduced weight, and +65% [@1MHz] shielding effect, compared to conventional TDK products;
• High noise absorption due to high permeability (permeability below 1MHz: Typ. 1000);
• Good shielding characteristics over a wide bandpass from low to high band frequencies;
• Since the permalloy alloy surface is a conductor, the noise suppression effect can be further enhanced through grounding;
• Options include conductive or non-conductive double-sided tape;
• Sheet materials and custom cuts to meet customer needs are available.

About TDK Corporation

TDK Corporation (tdk.com) is a world leader in electronic solutions for the smart society based in Tokyo, Japan. Built on a foundation of material sciences mastery, TDK welcomes societal transformation by resolutely remaining at the forefront of technological evolution and deliberately “Attracting Tomorrow.” It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products. TDK's comprehensive, innovation-driven portfolio features passive components such as ceramic, aluminum electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo and protection devices. The product spectrum also includes sensors and sensor systems such as temperature and pressure, magnetic, and MEMS sensors. In addition, TDK provides power supplies and energy devices, magnetic heads and more. These products are marketed under the product brands TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda. TDK focuses on demanding markets in automotive, industrial and consumer electronics, and information and communication technology. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. In fiscal 2024, TDK posted total sales of USD 14.6 billion and employed about 101,000 people worldwide.

 
 
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TDK Introduces New Ultra-thin, Lightweight Permalloy Film Sheets to Shield Low Frequency Band Noise

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Permalloy Film Sheets | TDK Corporation
Contact: Press Office - TDK.com 
+813 6778 1055 tdk.pr[.]tdk.com
 
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