Wireless Charging Coils

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Function	Type	Inductance	Tolerance	DC Resistance (DCR)	Q @ Freq	Current Rating (Amps)	Current - Saturation (Isat)	Frequency - Self Resonant	Operating Temperature	Size / Dimension

WR222230-26M8-G RX 1 COIL 2 LYR 27UH TDK Corporation	2 173 In Stock	1 : 2,71000 € Tray	WR	Tray	Active	Receiver	1 Coil, 2 Layer	27µH	-	1.1Ohm Max	-	-	-	-	-	0.87" Dia x 0.03" H (22.0mm x 0.9mm)
WR202010-18M8-ID RX 1 COIL 2 LYR 11UH TDK Corporation	4 028 In Stock	1 : 3,53000 € Tray	WR	Tray	Active	Receiver	1 Coil, 2 Layer	11µH	±5%	350mOhm	-	-	-	-	-	0.79" Dia x 0.03" H (20.0mm x 0.8mm)
WR202020-18M8-G RX 1 COIL, 1 LYR 9.9UH TDK Corporation	440 In Stock	1 : 3,55000 € Tray	WR	Tray	Active	Receiver	1 Coil, 1 Layer	9.9µH	-	520mOhm	-	-	-	-	-	0.79" Dia x 0.02" H (20.0mm x 0.6mm)
WT202012-15F2-ID TX 1 COIL 2 LYR 6.2UH TDK Corporation	14 555 In Stock	1 : 3,78000 € Tray	WT	Tray	Active	Transmitter	1 Coil, 2 Layer	6.2µH	±5%	80mOhm	-	-	-	-	-	0.80" Dia x 0.10" H (20.3mm x 2.7mm)
760308101219 RX 1 COIL 1 LAYER 11.8UH 700MA Würth Elektronik	158 In Stock	1 : 7,29000 € Box	WE-WPCC	Box	Active	Receiver	1 Coil, 1 Layer	11.8µH	±10%	750mOhm Max	13 @ 125kHz	700mA	1.5A	22MHz	-20°C ~ 105°C	0.59" Dia x 0.02" H (15.0mm x 0.6mm)
760308103206 RX 1 COIL 1 LAYER 7.5UH 1.55A Würth Elektronik	290 In Stock	1 : 9,68000 € Box	WE-WPCC	Box	Active	Receiver	1 Coil, 1 Layer	7.5µH	±10%	340mOhm	16 @ 125kHz	1.55A	3A	23MHz	-20°C ~ 105°C	1.10" L x 0.59" W x 0.03" H (28.0mm x 15.0mm x 0.7mm)
WR202010-18M8-SM RX 1 COIL 2 LYR 10.68UH TDK Corporation	443 In Stock	1 : 3,47000 € Tray	WR	Tray	Active	Receiver	1 Coil, 2 Layer	10.68µH	±5%	350mOhm	-	-	-	-	-	0.79" Dia x 0.03" H (20.0mm x 0.8mm)
IWAS3827ABEB110JF1 IWAS-3827AB-F1 10 5% EB E2 Vishay Dale	963 In Stock	1 : 4,65000 € Tray	-	Tray	Active	Receiver	1 Coil, 1 Layer	10.65µH	±5%	185mOhm	30 @ 200kHz	-	-	-	-40°C ~ 105°C	1.50" L x 1.05" W x 0.07" H (38.1mm x 26.7mm x 1.7mm)
WR121210-27M8-ID RX 1 COIL 1 LYR 8.32UH TDK Corporation	234 In Stock	1 : 2,65000 € Tray	WR	Tray	Active	Receiver	1 Coil, 1 Layer	8.32µH	±5%	950mOhm	-	-	-	-	-	0.47" Dia x 0.01" H (12.0mm x 0.3mm)

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Wireless charging coils generate an alternating electromagnetic field used to inductively transfer energy to other coils positioned parallel and in close proximity. The energy is used to charge batteries or run the device receiving the energy. The coils may be designed as receivers, transmitters or dual purpose having single or multiple coils and multiple layers of windings. They are rated by their inductance, self resonant frequency, saturation current and Q factor at a given frequency.