Rutronik announces a new powdered-iron-based, Wireless Power Consortium-compliant receiving coil for the wireless charging of 5V portable electronics from Vishay.
Optimized for the wireless charging of 5 V portable electronics, Vishay’s new IWAS-3827EC-50 powdered-iron-based, WPC-compliant receiving coil provides a durable construction, high permeability shielding, and high efficiency greater than 70 % for Rx applications to 10 W. With dimensions of 38 mm by 27 mm, the device is 33 % smaller than the standard 48 mm by 32 mm IWAS-4832FF-50 Rx coil.
For wireless power base stations and receivers, the IWAS-3827EC-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-3827EC-50 offers a magnetic saturation of 50 % at 4000 gauss. Besides it has an inductance of 10,7 µH at 200 kHz with ± 5% inductance tolerance as well as 183 m? DCR at +25°C. 10mm of 50mm lead length are tinned.