Charging Coils | e絡盟 Hong Kong

Our range of wireless charging coils includes one coil, two coil and three coil devices, with inductance from 2.5µH to 47µH.Wireless charging coils are electronic components at the core of wireless charging technology; an approach which allows battery-operated mobile and portable devices to be recharged without need for cables or plugging in.Broadly, there are three types of wireless charging. There are charging pads that use tightly coupled electromagnetic inductive or non-radiative charging; charging bowls or through-surface type chargers that use loosely coupled or radiative electromagnetic resonant charging that can transmit a charge a few centimetres; and uncoupled radio frequency (RF) wireless charging that allows a trickle charging capability at distances of many feet.Both tightly coupled inductive and loosely coupled resonant charging operate on the same principle of physics: a time-varying magnetic field induces a current in a closed loop of wire.Qi wireless charging coils are important because they comply with the Qi charging standard. This is not the only wireless charging method available, but it's the first one that is supported by two of the largest and most-influential smartphone makers: Samsung and Apple.

Applications of wireless charging coils

Wireless charging is currently being used in many applications including:

Smartphones and wearable technology
Notebooks and tablets
Power tools and service robots, such as vacuum cleaners
Multicopters and electric toys
Medical devices
In-car charging

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			Price For		Quantity

WR524825-17M6-NF-G	2790533 Data Sheet RoHS	TDK Charging Coil NFC Antenna Combo Rx WR-NFC Series 16.8 µH 0.75 ohm 1 Coil 1 Layer	Each	1+ HK$87.800 5+ HK$76.820 10+ HK$63.650 25+ HK$57.070 50+ HK$52.680 More Pricing...	Total:HK$87.80 Min: 1 / Mult: 1	WR-NFC Series	16.8µH	-	0.75ohm	1 Coil	1 Layer	-	-	-	-	52.5mm	48.5mm	0.52mm	Board Mount	-30°C	70°C
SZ3105N	4695694 Data Sheet RoHS	PULSE ELECTRONICS Charging Coil 49.5mm Dia 6.3 µH ± 10% 0.045 ohm 1 Coil 1 Layer	Each	1+ HK$28.010 5+ HK$25.710 10+ HK$23.400 20+ HK$21.810 40+ HK$20.080 More Pricing...	Total:HK$28.01 Min: 1 / Mult: 1	-	6.3µH	± 10%	0.045ohm	1 Coil	1 Layer	-	-	-	-	-	-	2.85mm	Board Mount	-40°C	85°C
760308102142	4360216 Data Sheet RoHS	WURTH ELEKTRONIK Charging Coil WE-WPCC Series 5.8 µH ± 10% 0.012 ohm 1 Coil 1 Layer	Each	1+ HK$182.950 2+ HK$180.820 3+ HK$178.680 5+ HK$176.540 10+ HK$174.400 More Pricing...	Total:HK$182.95 Min: 1 / Mult: 1	WE-WPCC Series	5.8µH	± 10%	0.012ohm	1 Coil	1 Layer	30A	12MHz	-	18A	-	-	6.5mm	Board Mount	-20°C	105°C
SZ3035N	4695692 Data Sheet RoHS	PULSE ELECTRONICS Charging Coil 58mm Dia 7.42 µH ± 10% 0.07 ohm 1 Coil 1 Layer	Each	1+ HK$127.380 5+ HK$116.910 10+ HK$106.400 20+ HK$99.170 40+ HK$91.310 More Pricing...	Total:HK$127.38 Min: 1 / Mult: 1	-	7.42µH	± 10%	0.07ohm	1 Coil	1 Layer	-	-	77@360kHz	-	-	-	4.3mm	Board Mount	-40°C	85°C
760308102210	4360218 Data Sheet RoHS	WURTH ELEKTRONIK Charging Coil WE-WPCC Series 7.5 µH ± 10% 0.18 ohm 1 Coil 1 Layer	Each	1+ HK$99.260 2+ HK$97.280 3+ HK$95.290 5+ HK$93.310 10+ HK$91.320 More Pricing...	Total:HK$99.26 Min: 1 / Mult: 1	WE-WPCC Series	7.5µH	± 10%	0.18ohm	1 Coil	1 Layer	-	22MHz	-	3A	37mm	37mm	1.8mm	Board Mount	-20°C	105°C
WMRT149A-1	4695695 Data Sheet RoHS	PULSE ELECTRONICS Charging Coil 50mm Dia 6.9 µH ± 10% 0.047 ohm 1 Coil 1 Layer	Each	1+ HK$14.200 5+ HK$13.090 10+ HK$11.980 20+ HK$11.510 40+ HK$11.040 More Pricing...	Total:HK$14.20 Min: 1 / Mult: 1	-	6.9µH	± 10%	0.047ohm	1 Coil	1 Layer	-	-	70@100kHz	-	-	-	3.5mm	Board Mount	-	-
SWW450N	4695698 Data Sheet RoHS	PULSE ELECTRONICS Charging Coil 10.2 µH ± 10% 0.065 ohm 3 Coils 1 Layer	Each	1+ HK$33.950 5+ HK$31.180 10+ HK$28.400 20+ HK$25.910 40+ HK$23.140 More Pricing...	Total:HK$33.95 Min: 1 / Mult: 1	-	10.2µH	± 10%	0.065ohm	3 Coils	1 Layer	-	-	90@125kHz	-	106mm	57mm	4.5mm	Board Mount	-40°C	85°C
SZ3085N	4695693 Data Sheet RoHS	PULSE ELECTRONICS Charging Coil 12.5 µH ± 10% 0.06 ohm 3 Coils 1 Layer	Each	1+ HK$45.570 5+ HK$41.820 10+ HK$38.060 20+ HK$35.480 40+ HK$32.660 More Pricing...	Total:HK$45.57 Min: 1 / Mult: 1	-	12.5µH	± 10%	0.06ohm	3 Coils	1 Layer	-	-	-	-	100mm	55mm	3.5mm	Board Mount	-40°C	105°C
WMRR138F-0	4695696 Data Sheet RoHS	PULSE ELECTRONICS Charging Coil 12.5 µH ± 10% 0.32 ohm 1 Coil 1 Layer	Each	1+ HK$18.390 5+ HK$16.770 10+ HK$15.140 20+ HK$14.160 40+ HK$13.170 More Pricing...	Total:HK$18.39 Min: 1 / Mult: 1	-	12.5µH	± 10%	0.32ohm	1 Coil	1 Layer	-	-	-	-	38mm	32mm	0.9mm	Board Mount	-	-
SWW451N	4695697 Data Sheet RoHS	PULSE ELECTRONICS Charging Coil 12.5 µH ± 10% 0.065 ohm 3 Coils 1 Layer	Each	1+ HK$31.300 5+ HK$28.740 10+ HK$26.170 20+ HK$23.860 40+ HK$21.300 More Pricing...	Total:HK$31.30 Min: 1 / Mult: 1	-	12.5µH	± 10%	0.065ohm	3 Coils	1 Layer	-	-	84@100kHz	-	91.8mm	55mm	4.25mm	Board Mount	-40°C	85°C
760308101302	4360215 Data Sheet RoHS	WURTH ELEKTRONIK Charging Coil WE-WPCC Series 5.3 µH ± 10% 0.035 ohm 1 Coil 1 Layer	Each	1+ HK$182.440 2+ HK$178.800 3+ HK$175.150 5+ HK$171.500 10+ HK$167.850 More Pricing...	Total:HK$182.44 Min: 1 / Mult: 1	WE-WPCC Series	5.3µH	± 10%	0.035ohm	1 Coil	1 Layer	10A	27MHz	-	8A	-	-	4.7mm	Board Mount	-20°C	105°C
WR524830-16F3-NF-G	2790534 Data Sheet RoHS	TDK Charging Coil NFC Antenna Combo Rx WR-NFC Series 19.5 µH 0.8 ohm 1 Coil 1 Layer	Each	1+ HK$86.270 5+ HK$75.490 10+ HK$62.550 25+ HK$56.080 50+ HK$54.990 More Pricing...	Total:HK$86.27 Min: 1 / Mult: 1	WR-NFC Series	19.5µH	-	0.8ohm	1 Coil	1 Layer	-	-	-	-	52.5mm	48.5mm	0.62mm	Board Mount	-30°C	70°C
IWAS3827ABEB110JF1	3364898 Data Sheet RoHS	VISHAY Charging Coil IWAS Series 11 µH ± 5% 0.185 ohm 1 Coil 1 Layer	Each	1+ HK$45.170 10+ HK$39.520 50+ HK$32.750 100+ HK$29.360 200+ HK$27.100 More Pricing...	Total:HK$45.17 Min: 1 / Mult: 1	IWAS Series	11µH	± 5%	0.185ohm	1 Coil	1 Layer	-	-	30@200kHz	-	26.65mm	38.1mm	1.7mm	Board Mount	-40°C	105°C
SWC4242KB120-100	2452018 Data Sheet RoHS	LAIRD Charging Coil Wireless SWC Series 12.5 µH ± 10% 0.24 ohm 1 Coil 1 Layer	Each	1+ HK$58.450 10+ HK$53.590 50+ HK$48.710 100+ HK$43.300 200+ HK$41.610 More Pricing...	Total:HK$58.45 Min: 1 / Mult: 1	SWC Series	12.5µH	± 10%	0.24ohm	1 Coil	1 Layer	-	-	20@100kHz	-	42mm	42mm	0.7mm	Board Mount	-40°C	85°C
760308103206	2467269 Data Sheet RoHS	WURTH ELEKTRONIK Charging Coil Wireless WE-WPCC Series 7.5 µH ± 10% 0.38 ohm 1 Coil 1 Layer	Each	1+ HK$89.860 5+ HK$86.270 10+ HK$82.680 20+ HK$79.090 40+ HK$75.500 More Pricing...	Total:HK$89.86 Min: 1 / Mult: 1	WE-WPCC Series	7.5µH	± 10%	0.38ohm	1 Coil	1 Layer	-	23MHz	16@125kHz	-	15.7mm	28.9mm	0.76mm	Board Mount	-20°C	105°C
760308101219	2543256 Data Sheet RoHS	WURTH ELEKTRONIK Charging Coil Wireless WE-WPCC Series 11.8 µH ± 10% 0.75 ohm 1 Coil 1 Layer	Each	1+ HK$67.720 3+ HK$66.520 5+ HK$65.320 10+ HK$64.120 20+ HK$59.130 More Pricing...	Total:HK$67.72 Min: 1 / Mult: 1	WE-WPCC Series	11.8µH	± 10%	0.75ohm	1 Coil	1 Layer	-	22MHz	13@125kHz	-	-	-	0.6mm	Board Mount	-20°C	105°C
WT303012-12F2-ID	2790523 Data Sheet RoHS	TDK Charging Coil Transmitter WT Series 6.3 µH ± 5% 0.115 ohm 1 Coil 2 Layers	Each	1+ HK$29.840 10+ HK$29.830 50+ HK$29.820 100+ HK$29.810 200+ HK$29.800 More Pricing...	Total:HK$29.84 Min: 1 / Mult: 1	WT Series	6.3µH	± 5%	0.115ohm	1 Coil	2 Layers	-	-	-	-	-	-	2.15mm	Board Mount	-30°C	70°C
760308102207	2467267 Data Sheet RoHS	WURTH ELEKTRONIK Charging Coil Wireless WE-WPCC Series 8 µH ± 10% 0.08 ohm 1 Coil 1 Layer	Each	1+ HK$89.860 5+ HK$88.870 10+ HK$87.880 20+ HK$86.890 40+ HK$85.900 More Pricing...	Total:HK$89.86 Min: 1 / Mult: 1	WE-WPCC Series	8µH	± 10%	0.08ohm	1 Coil	1 Layer	-	16MHz	30@125kHz	-	40mm	40mm	1.2mm	Board Mount	-20°C	105°C
760308103202	2400022 Data Sheet RoHS	WURTH ELEKTRONIK Charging Coil Wireless WE-WPCC Series 12 µH ± 10% 0.2 ohm 1 Coil 1 Layer	Each	1+ HK$55.150 3+ HK$53.790 5+ HK$52.420 10+ HK$51.050 20+ HK$47.840 More Pricing...	Total:HK$55.15 Min: 1 / Mult: 1	WE-WPCC Series	12µH	± 10%	0.2ohm	1 Coil	1 Layer	6A	13MHz	33@125kHz	-	32mm	48mm	0.958mm	Board Mount	-20°C	105°C
AWCCA-50N50H40-C01-B	2431214 Data Sheet RoHS	ABRACON Charging Coil Wireless AWCCA Series 24 µH ± 10% 0.072 ohm 1 Coil 1 Layer	Each	1+ HK$85.600 2+ HK$65.660 3+ HK$62.100 5+ HK$58.540 10+ HK$54.980 More Pricing...	Total:HK$85.60 Min: 1 / Mult: 1	AWCCA Series	24µH	± 10%	0.072ohm	1 Coil	1 Layer	27A	2.9MHz	165@100kHz	5.7A	50mm	50mm	4mm	Board Mount	-25°C	85°C
760308201	2114372 Data Sheet RoHS	WURTH ELEKTRONIK Charging Coil Wireless WE-WPCC Series 10 µH ± 5% 0.2 ohm 1 Coil 1 Layer	Each	1+ HK$153.010 3+ HK$147.330 5+ HK$141.940 10+ HK$137.180 20+ HK$131.980 More Pricing...	Total:HK$153.01 Min: 1 / Mult: 1	WE-WPCC Series	10µH	± 5%	0.2ohm	1 Coil	1 Layer	8A	15MHz	50@125kHz	-	37mm	37mm	1.8mm	Board Mount	-20°C	105°C
760308101208A	2749146 Data Sheet RoHS	WURTH ELEKTRONIK Charging Coil WE-WPCC Series 18 µH ± 10% 0.65 ohm 1 Coil 3 Layers	Each	1+ HK$73.270 10+ HK$68.270 50+ HK$63.270 100+ HK$56.600 200+ HK$54.940 More Pricing...	Total:HK$73.27 Min: 1 / Mult: 1	WE-WPCC Series	18µH	± 10%	0.65ohm	1 Coil	3 Layers	-	24MHz	18@125kHz	-	-	-	1.68mm	Board Mount	-20°C	105°C
760308105	2291718 Data Sheet RoHS	WURTH ELEKTRONIK Charging Coil Wireless WE-WPCC Series 6.3 µH ± 10% 0.024 ohm 1 Coil 1 Layer	Each	1+ HK$116.280 2+ HK$113.870 3+ HK$111.450 5+ HK$109.040 10+ HK$106.620 More Pricing...	Total:HK$116.28 Min: 1 / Mult: 1	WE-WPCC Series	6.3µH	± 10%	0.024ohm	1 Coil	1 Layer	16A	20MHz	55@125kHz	-	53.3mm	53.3mm	6mm	Board Mount	-20°C	105°C
760308101	2114371 Data Sheet RoHS	WURTH ELEKTRONIK Charging Coil Wireless WE-WPCC Series 24 µH ± 10% 0.1 ohm 1 Coil 1 Layer	Each	1+ HK$160.380 2+ HK$157.030 3+ HK$153.680 5+ HK$150.330 10+ HK$146.970 More Pricing...	Total:HK$160.38 Min: 1 / Mult: 1	WE-WPCC Series	24µH	± 10%	0.1ohm	1 Coil	1 Layer	10A	6MHz	90@125kHz	-	53.3mm	53.3mm	6mm	Board Mount	-20°C	105°C
RWC5353EJ240-500	2452015 Data Sheet RoHS	LAIRD Charging Coil Wireless RWC Series 24 µH ± 10% 0.075 ohm 1 Coil 2 Layers	Each	1+ HK$113.150 10+ HK$99.000 50+ HK$82.030 100+ HK$73.550 200+ HK$67.900 More Pricing...	Total:HK$113.15 Min: 1 / Mult: 1	RWC Series	24µH	± 10%	0.075ohm	1 Coil	2 Layers	10A	-	90@100kHz	5.5A	53mm	53mm	6.7mm	Board Mount	-40°C	125°C