Powdered-iron-based Rx coil for wireless charging

Powdered-iron-based Rx coil for wireless charging

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By eeNews Europe

The Rx coil has been designed into a wireless power development kit. For wireless power base stations and receivers, the IWAS-4832FF-50’s high-saturation powdered iron is not affected by permanent locating magnets, and the device blocks charging flux from sensitive components or batteries. As an alternative to Ferrite-based solutions, which can saturate in the presence of a strong magnetic field, the IWAS-4832FF-50 offers a magnetic saturation of 50 % at 4000 gauss. The RoHS-compliant device features inductance of 9.7 µH at 200 kHz with a ± 5 % inductance tolerance, DCR of 200 mΩ at + 25 ºC, and Q of 30 min. at 200 kHz. The device features a lead length of 50 mm and tinned length of 10 mm.

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