The IWTX5547EEEB8R5KF1 from Vishay is a Wireless Charging Transmitter Coil that operates from 5 to 15 W. It has an inductance of 8.5 µH, and a self-resonating frequency (SRF) of 11 MHz. This transmitter coil has a dynamic contact resistance (DCR) of 56 milli-ohms and a quality factor of 140. It has a DC saturation current of 10 A and is compliant with the WPC Qi MP-A8 standard. This wireless transmitter coil measures 51.0 × 47.0 mm.