Optimized for use with or without alignment magnet, Vishay Dale IWAS-4832EC-50 Rx coil delivers efficiency >75% for wireless charging of 7 V portable electronics. High-saturation (50% of inductance at 4000 gauss) powdered iron is not affected by permanent locating magnets. With lead length of 50 mm and tinned length of 10 mm, Wireless Power Consortium-compliant coil features inductance of 16.2 µH at 200 kHz with ±5 % inductance tolerance, DCR of 366 mΩ at +25°C, and Q of 30 min at 200 kHz.
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