Ultra-thin noise suppression sheets

14 October 2015 Circuit & System Protection

TDK’s ultra-thin IFL16 noise suppression sheet has a thickness of just 0,03 mm or 0,05 mm, depending on type, making it 20% thinner than existing sheets with the same performance. At this thickness the new material offers the world’s highest magnetic permeability of 220 μ' at 1 MHz.

Development of smartphones and other mobile devices is still focused on the miniaturisation of the individual components, while the range of functions increases. Apart from a PCB layout that supports EMC (electromagnetic compatibility), adequate additional shielding of the devices is playing an increasingly important role. Noise suppression sheets such as the new ultra-thin IFL16 are a space-saving answer to this requirement. They can prevent emitted interference from penetrating the device or can prevent reflections created within the device from affecting the function of other devices.

A growing number of devices use a stylus pen for input, which works on the principle of magnetic induction. In order to improve sensitivity, these devices use magnetic films for the inductive sensor unit of the display. This simultaneously demands both a high level of magnetic permeability and a very thin film.

IFL16 is designed for a temperature range of between -40°C and +85°C and is suitable for the frequency range from 0,5 MHz to 1000 MHz. The standard size of the sheet is 300 x 200 mm, and it can also be supplied on a roll (300 x 100 m).

For more information contact Yolandi de Beer, Avnet South Africa, +27 (0)11 319 8600, [email protected], www.avnet.co.za

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