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

			Price For		Quantity

WR202010-18M8-ID	2790526 Data Sheet RoHS	TDK Charging Coil Receiver WR Series 11 µH ± 5% 0.4 ohm 1 Coil 2 Layers	Each	1+ HK$32.390 10+ HK$27.050 50+ HK$21.210 100+ HK$19.400 200+ HK$18.000 More Pricing...	Min: 1 / Mult: 1	WR Series	11µH	± 5%	0.4ohm	1 Coil	2 Layers	-	-	-	-	-	-	0.88mm	Board Mount	-30°C	70°C
760308103305	2749147 Data Sheet RoHS	WURTH ELEKTRONIK Charging Coil WE-WPCC Series 8.8 µH ± 10% 0.22 ohm 2 Coils 1 Layer	Each	1+ HK$119.610 2+ HK$117.950 3+ HK$116.290 5+ HK$114.630 10+ HK$112.970 More Pricing...	Min: 1 / Mult: 1	WE-WPCC Series	8.8µH	± 10%	0.22ohm	2 Coils	1 Layer	-	22MHz	30@125kHz	-	45mm	44mm	0.72mm	Board Mount	-20°C	105°C
760308102144	2777676 Data Sheet RoHS	WURTH ELEKTRONIK Charging Coil WE-WPCC Series 19.5 µH ± 10% 0.045 ohm 1 Coil 1 Layer	Each	1+ HK$142.170 2+ HK$137.060 3+ HK$131.580 5+ HK$127.000 10+ HK$122.230 More Pricing...	Min: 1 / Mult: 1	WE-WPCC Series	19.5µH	± 10%	0.045ohm	1 Coil	1 Layer	20A	5MHz	220@125kHz	-	53.3mm	53.3mm	7mm	Board Mount	-20°C	105°C
760308101107	2965277 Data Sheet RoHS	WURTH ELEKTRONIK Charging Coil WE-WPCC Series 24 µH ± 10% 0.315 ohm 1 Coil 1 Layer	Each	1+ HK$105.220 3+ HK$93.920 5+ HK$82.620 10+ HK$71.850 20+ HK$69.840 More Pricing...	Min: 1 / Mult: 1	WE-WPCC Series	24µH	± 10%	0.315ohm	1 Coil	1 Layer	-	7.5MHz	55@125kHz	-	-	-	2.5mm	Board Mount	-20°C	105°C
760308101106	2965276 Data Sheet RoHS	WURTH ELEKTRONIK Charging Coil WE-WPCC Series 2.5 µH ± 10% 0.09 ohm 1 Coil 1 Layer	Each	1+ HK$83.270 5+ HK$72.380 10+ HK$61.490 20+ HK$59.560 40+ HK$57.630 More Pricing...	Min: 1 / Mult: 1	WE-WPCC Series	2.5µH	± 10%	0.09ohm	1 Coil	1 Layer	8A	38MHz	30@125kHz	-	-	-	2.8mm	Board Mount	-20°C	105°C
760308103109	2965275 Data Sheet RoHS	WURTH ELEKTRONIK Charging Coil WE-WPCC Series 10.2 µH ± 10% 0.05 ohm 1 Coil 1 Layer	Each	1+ HK$121.910 2+ HK$113.770 3+ HK$105.630 5+ HK$97.490 10+ HK$88.370 More Pricing...	Min: 1 / Mult: 1	WE-WPCC Series	10.2µH	± 10%	0.05ohm	1 Coil	1 Layer	18A	11MHz	130@125kHz	-	51mm	57mm	4.2mm	Board Mount	-20°C	105°C
AWCCA-TX535315-101	3224274 Data Sheet RoHS	ABRACON Charging Coil AWCCA Series 10 µH ± 10% 0.055 ohm 1 Coil 1 Layer	Each	1+ HK$93.450 10+ HK$64.410 25+ HK$60.460 50+ HK$56.470 100+ HK$52.490 More Pricing...	Min: 1 / Mult: 1	AWCCA Series	10µH	± 10%	0.055ohm	1 Coil	1 Layer	-	-	135@125kHz	-	53mm	53mm	4.5mm	Board Mount	-40°C	85°C
IWTX55R0DZEB8R9KF1	3263662 Data Sheet RoHS	VISHAY Charging Coil IWTX Series 8.9 µH ± 10% 0.055 ohm 1 Coil 1 Layer	Each	1+ HK$30.010 10+ HK$18.500 50+ HK$17.520 200+ HK$16.530 400+ HK$16.360 More Pricing...	Min: 1 / Mult: 1	IWTX Series	8.9µH	± 10%	0.055ohm	1 Coil	1 Layer	-	-	98.5@100kHz	-	-	-	4mm	Board Mount	-40°C	125°C
WTM905525-12F2-12V-G	3650732 Data Sheet RoHS	TDK Charging Coil WTM Series 10 µH 1 Coil 1 Layer	Each	1+ HK$583.130 5+ HK$494.370 10+ HK$447.350 20+ HK$411.440 40+ HK$390.020 More Pricing...	Min: 1 / Mult: 1	WTM Series	10µH	-	-	1 Coil	1 Layer	-	-	-	-	52mm	52mm	4.34mm	Board Mount	-30°C	70°C
WRM483265-10F5-12V-G	3650729 Data Sheet RoHS	TDK Charging Coil Receiver Bifilar WRM Series 8 µH 1 Coil 1 Layer	Each	1+ HK$218.740 5+ HK$185.440 10+ HK$167.810 25+ HK$154.340 50+ HK$146.300 More Pricing...	Min: 1 / Mult: 1	WRM Series	8µH	-	-	1 Coil	1 Layer	-	-	-	-	48.2mm	32.7mm	1.8mm	Board Mount	-30°C	70°C
WR221230-36M8-G	2790527 Data Sheet RoHS	TDK Charging Coil Receiver WR Series 27.9 µH ± 5% 1.21 ohm 1 Coil 2 Layers	Each	1+ HK$15.460 10+ HK$12.750 100+ HK$10.120 500+ HK$9.130 1000+ HK$8.860 More Pricing...	Min: 1 / Mult: 1	WR Series	27.9µH	± 5%	1.21ohm	1 Coil	2 Layers	-	-	-	-	22mm	12mm	0.87mm	Board Mount	-30°C	70°C
IWAS4832ADEB150JF1	3364900 Data Sheet RoHS	VISHAY Charging Coil IWAS Series 15 µH ± 5% 0.24 ohm 1 Coil 1 Layer	Each	1+ HK$45.460 2+ HK$36.040 3+ HK$32.630 5+ HK$30.680 10+ HK$29.600 More Pricing...	Min: 1 / Mult: 1	IWAS Series	-	± 5%	-	1 Coil	1 Layer	-	-	65@200kHz	-	-	-	-	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$27.900 5+ HK$25.730 10+ HK$23.560 20+ HK$21.210 40+ HK$18.850 More Pricing...	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
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$123.430 5+ HK$113.830 10+ HK$104.200 20+ HK$93.830 40+ HK$83.390 More Pricing...	Min: 1 / Mult: 1	-	7.42µH	± 10%	0.07ohm	1 Coil	1 Layer	-	-	77@360kHz	-	-	-	4.3mm	Board Mount	-40°C	85°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$26.550 5+ HK$24.480 10+ HK$22.410 20+ HK$20.180 40+ HK$17.940 More Pricing...	Min: 1 / Mult: 1	-	6.3µH	± 10%	0.045ohm	1 Coil	1 Layer	-	-	-	-	-	-	2.85mm	Board Mount	-40°C	85°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$13.570 5+ HK$12.540 10+ HK$11.510 20+ HK$10.330 40+ HK$9.140 More Pricing...	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$30.360 5+ HK$28.000 10+ HK$25.630 20+ HK$23.080 40+ HK$20.510 More Pricing...	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$43.170 5+ HK$39.810 10+ HK$36.450 20+ HK$32.820 40+ HK$29.170 More Pricing...	Min: 1 / Mult: 1	-	12.5µH	± 10%	0.06ohm	3 Coils	1 Layer	-	-	-	-	100mm	55mm	3.5mm	Board Mount	-40°C	105°C
AWCCA-53N53H50-C01-B	2431218 Data Sheet RoHS	ABRACON Charging Coil Wireless AWCCA Series 24 µH ± 10% 0.072 ohm 1 Coil 1 Layer	Each	1+ HK$85.440 2+ HK$58.890 3+ HK$55.280 5+ HK$51.640 10+ HK$47.990 More Pricing...	Min: 1 / Mult: 1	AWCCA Series	24µH	± 10%	0.072ohm	1 Coil	1 Layer	30A	2.8MHz	170@100kHz	5.7A	53mm	53mm	3.8mm	Board Mount	-25°C	85°C
146179-4011	2913965 Data Sheet RoHS	MOLEX Charging Coil 5.6 µH (Tx) 9.6 µH (Rx) PowerLife 146179 Series 9.6 µH ± 2% 0.55 ohm 2 Coils	Each	1+ HK$65.210 2+ HK$64.350 3+ HK$63.500 5+ HK$62.660 10+ HK$61.790 More Pricing...	Min: 1 / Mult: 1	PowerLife 146179 Series	9.6µH	± 2%	0.55ohm	2 Coils	1 Layer	-	-	18@200kHz	-	-	-	-	Board Mount	-	-

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