The IRL, IRJ, IVM, IRB, IRE series products produced by TDK Corporation comply with the RoHS Directive. These products are absorptive composite electromagnetic shield materials, which are highly flexible and easy to handle, and can reduce noise in a wide frequency range. The product is particularly suitable for noise reduction in small digital devices such as laptops, PDAs, digital cameras, and mobile phones.
The Flexield series (IRL, IRJ, IVM, IRB, IRE) are magnetic polymer sheets designed to reduce radiant and electromagnetic noise in high‑frequency devices such as laptops, mobile phones, digital cameras and LCD displays. The material offers high flexibility, a range of thicknesses from 0.05 mm upward, and is lead‑free and halogen‑free.
The handbook provides detailed specifications (frequency range, temperature limits, permeability, thickness), naming conventions, processing options, and measurement data showing reductions in coupling, SAR, and unwanted radiation for various applications including mobile phones, LCOS modules and optical pickups.
| Recommended frequency range | 0.5 MHz – 10 GHz |
|---|---|
| Operating temperature range | -40 °C to +85 °C |
| Initial permeability (at 10 MHz) | 44 |
Flexield is a magnetic sheet composed of a polymer matrix and TDK’s proprietary magnetic powder, offering magnetic loss and shielding properties.