TDK Corporation

IPM01 Series Permalloy Thin-Film Flexield Sheets

TDK's IPM01 ultra-thin, lightweight permalloy sheets shield low-frequency band noise

Image of TDK's IPM01 Series Permalloy Thin-film Flexield SheetsTDK’s IPM01 series permalloy Flexield sheets feature high permeability and high loss in a lightweight and 0.006 mm ultra-thin design. This material effectively shields low-frequency band noise, a growing issue in electric vehicles (EVs).

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 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.

The 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% (at 1 MHz).

This permalloy is ideal for 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. Using the permalloy sheet developed by TDK, it is possible to suppress noise at 1/5 the thickness of conventional products.

Features
  • Ultra-thin film allows use without increasing weight or space (sheet thickness: 0.006 mm)
  • 80% reduced thickness, 90% reduced weight, and +65% (at 1 MHz) shielding effect, compared to conventional TDK products
  • High noise absorption due to high permeability (permeability below 1 MHz: 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
  • Operating temperature environment from -40°C to +85°C
Applications
  • Automotive subsystems
  • Smartphones
  • Wearable devices

IPM01 Series Permalloy Thin-Film Flexield Sheets

图片制造商零件编号描述可供货数量价格查看详情
EMC 300 X 200MM SHEETIPM01-003RQ300X200EMC 300 X 200MM SHEET46 - 立即发货$319.01查看详情
发布日期： 2024-05-09