Vishay Intertechnology Introduces New Powdered-Iron-Based, WPC-Compliant Rx Coil for 5 V Wireless Charging Circuitry
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.
The RoHS-compliant device features inductance of 10.7 µH at 200 kHz with a ± 5 % inductance tolerance, DCR of 183 mΩ at + 25 °C, and Q of 30 typical at 200 kHz. The receiving coil features a lead length of 50 mm and tinned length of 10 mm.
Samples and production quantities of the IWAS-3827EC-50 Rx coil are available now, with lead times of five to eight weeks.