The WTM505090-10K2-5V-G1 from TDK Corporation is a Wireless Charging Coil with Output Power 5 W, Output Voltage 4.75 to 5.2 V, Number of Coils 1, Inductance 6.3 uH, Dynamic Contact Resistance 60 milli-ohms. More details for WTM505090-10K2-5V-G1 can be seen below.