The WR303050-12F5-ID from TDK Corporation is a Wireless Charging Coil with Output Power 1 to 3 W, Number of Coils 1, Inductance 8.23 uH, Dynamic Contact Resistance 280 milli-ohms, Temperature operating range -30 to 70 Degree C. More details for WR303050-12F5-ID can be seen below.