What are Wireless Charging Coils ?
Wireless Charging Coils are specialized inductive components designed to enable wireless energy transfer between devices. They are widely used in applications such as consumer electronics, automotive charging systems, and medical devices. Important specifications for selection include Current Rating (Amps), which determines the maximum load the coil can handle; DC Resistance (DCR), which affects efficiency and heat generation; and Inductance, which influences the coil's ability to store energy. Ensuring compatibility with existing designs and validating lifecycle status are crucial for procurement teams.
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| Part & Mfr | Current | Current Rating (Amps) | DC Resistance (DCR) | Frequency | Function | Halogen Free | Height | Inductance | Length | Mounting Type | Number of Layers | Operating Temperature | Operating Temperature Range | Q @ Freq | SVHC Present | Size | Storage Temperature | Tape & Reel | Termination Style | Tolerance | Type | Weight | Width | Wire Type | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
TDK Corporation
|
2,688
|
Price on request
|
- | - | 0.07 Ω | - | Transmitter | Halogen-Free | - | 2.76 µH ±5% | - | Through Hole | 1 | - | -30°C to 70°C | - | Not Present | - | -40°C ~ 85°C | Yes | Solder | ±5% | 1 | 3.0 g | - | USTC φ0.06*50 Layer 1 | |
Würth Elektronik
|
1,000
|
Price on request
|
16A | 9A | 30mOhm Max | 11MHz | Transmitter | - | - | 10µH | - | - | - | -20°C ~ 105°C | - | 180 @ 125kHz | - | 1.97" L x 1.89" W x 0.24" H (50.0mm x 48.0mm x 6.0mm) | - | - | - | ±10% | 1 Coil, 2 Layer | - | - | - | |
Vishay
|
239
|
Price on request
|
- | - | 366 mΩ | - | Receiver | - | - | 16.2 µH | - | - | - | - | - | 30 @ 200kHz | - | - | - | No | - | ±5% | 1 Coil, 1 Layer | - | - | - | |
|
Vishay
|
79
|
Price on request
|
- | - | 187 mΩ | - | Receiver | - | 1.7mm | 10.8 µH | 48.0mm | - | - | -40°C ~ 105°C | - | 60 | - | - | -40°C ~ 105°C | No | - | ±5% | 1 Coil, 1 Layer | - | 32.0mm | - | |
Würth Elektronik
|
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12A | 8A | 56mOhm | 12MHz | Transmitter | - | - | 12µH, 11.5µH | - | - | - | -20°C ~ 105°C | - | 130 @ 125kHz | - | 3.48" L x 2.07" W x 0.14" H (88.50mm x 52.50mm x 3.50mm) | - | - | - | ±10% | 2 Coil, 1 Layer | - | - | - | |
RDI, Inc.
|
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on Request |
- | - | 275mOhm | - | Receiver | - | - | 12µH | - | - | - | -25°C ~ 85°C | - | - | - | 0.79" L x 0.79" W x 0.04" H (20.0mm x 20.0mm x 1.0mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
Signal Transformer
|
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6A | 3A | 200mOhm Max | - | Receiver | - | - | 12µH | - | - | - | -25°C ~ 105°C | - | 33 @ 125kHz | - | 1.89" L x 1.26" W x 0.04" H (48.0mm x 32.0mm x 1.1mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
Signal Transformer
|
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4A | 2.5A | 200mOhm Max | - | Receiver | - | - | 11µH | - | - | - | -25°C ~ 105°C | - | 30 @ 125kHz | - | 1.34" L x 1.05" W x 0.04" H (34.0mm x 26.7mm x 0.9mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
Signal Transformer
|
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4A | 2.5A | 430mOhm Max | - | Receiver | - | - | 16.7µH | - | - | - | -25°C ~ 105°C | - | 32 @ 125kHz | - | 1.52" L x 1.20" W x 0.04" H (38.5mm x 30.5mm x 1.1mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
Signal Transformer
|
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2A | 800mA | 500mOhm | - | Transmitter | - | - | 13µH | - | - | - | -25°C ~ 105°C | - | 17 @ 125kHz | - | 0.41" Dia x 0.07" H (10.3mm x 1.9mm) | - | - | - | ±10% | 1 Coil, 4 Layer | - | - | - | |
Signal Transformer
|
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1A | 500mA | 440mOhm Max | - | Transmitter | - | - | 7.2µH | - | - | - | -25°C ~ 105°C | - | 10 @ 125kHz | - | 0.24" Dia x 0.08" H (6.0mm x 2.0mm) | - | - | - | ±10% | 1 Coil, 4 Layer | - | - | - | |
Signal Transformer
|
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2A | 1.1A | 520mOhm | - | Transmitter | - | - | 26µH | - | - | - | -25°C ~ 105°C | - | 25 @ 125kHz | - | 0.75" Dia x 0.03" H (19.0mm x 0.8mm) | - | - | - | ±10% | 1 Coil, 3 Layer | - | - | - | |
|
Adafruit Industries LLC
|
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Price and Stock
on Request |
- | 600mA | - | - | Receiver | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |
Signal Transformer
|
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Price and Stock
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3A | 1.5A | 500mOhm | - | Transmitter | - | - | 47µH | - | - | - | -25°C ~ 105°C | - | 25 @ 125kHz | - | 1.02" Dia x 0.05" H (26.0mm x 1.3mm) | - | - | - | ±10% | 1 Coil, 3 Layer | - | - | - | |
|
Abracon LLC
|
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Price on request
Price and Stock
on Request |
- | - | 80mOhm Max | - | Receiver | - | - | 8µH | - | - | - | - | - | - | - | 1.57" L x 1.57" W x 0.05" H (40.0mm x 40.0mm x 1.2mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
|
Vishay
|
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on Request |
- | 5A | 45mOhm Max | - | Transmitter | - | - | 6.3µH | - | - | - | -40°C ~ 85°C | - | 120 @ 100kHz | - | 1.97" Dia x 0.12" H (50.0mm x 3.0mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
|
Vishay
|
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Price on request
Price and Stock
on Request |
- | 800mA | 780mOhm Max | - | Receiver | - | - | 12.9µH | - | - | - | -40°C ~ 85°C | - | 11 @ 100kHz | - | 1.18" L x 0.39" W x 0.03" H (30.0mm x 10.0mm x 0.7mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
|
Vishay
|
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- | 6A | 55mOhm Max | - | Transmitter | - | - | 8.9µH | - | - | - | -40°C ~ 125°C | - | 98.5 @ 100kHz | - | 2.17" Dia x 0.16" H (55.0mm x 4.0mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
Abracon LLC
|
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Price and Stock
on Request |
- | - | 170mOhm | - | Receiver | - | - | 25µH | - | - | - | -25°C ~ 85°C | - | 85 @ 100kHz | - | 1.38" Dia x 0.12" H (35.0mm x 3.0mm) | - | - | - | ±10% | 1 Coil, 2 Layer | - | - | - | |
Abracon LLC
|
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Price and Stock
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12A | 2.1A | 260mOhm | 11MHz | Receiver | - | - | 11.1µH | - | - | - | -25°C ~ 85°C | - | 22 @ 100kHz | - | 1.54" L x 1.30" W x 0.05" H (39.0mm x 33.0mm x 1.3mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
|
Vishay
|
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Price and Stock
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- | 6A | 80mOhm Max | - | Transmitter | - | - | 10µH | - | - | - | -40°C ~ 85°C | - | 99 @ 100kHz | - | 2.17" L x 2.17" W x 0.12" H (55.0mm x 55.0mm x 3.0mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
|
Vishay
|
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Price and Stock
on Request |
- | - | 178mOhm | - | Receiver | - | - | 10.65µH | - | - | - | -40°C ~ 105°C | - | 30 @ 200kHz | - | 1.50" L x 1.05" W x 0.07" H (38.1mm x 26.7mm x 1.7mm) | - | - | - | ±5% | 1 Coil, 1 Layer | - | - | - | |
|
Signal Transformer
|
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Price and Stock
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10A | 9A | 25mOhm Max | - | Transmitter | - | - | 6.3µH | - | - | - | -20°C ~ 85°C | - | - | - | 2.09" L x 2.09" W x 0.21" H (53.0mm x 53.0mm x 5.3mm) | - | - | - | ±10% | 2 Coil, 1 Layer | - | - | - | |
|
Abracon LLC
|
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Price on request
Price and Stock
on Request |
- | - | 140mOhm | - | Receiver | - | - | 14.5µH | - | - | - | -25°C ~ 85°C | - | 60 @ 100kHz | - | 1.89" L x 1.26" W x 0.04" H (48.0mm x 32.0mm x 1.1mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
|
Vishay
|
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Price on request
Price and Stock
on Request |
- | 9A | 29.7mOhm Max | - | Transmitter | - | - | 10µH | - | - | - | -40°C ~ 85°C | - | 200 @ 100kHz | - | 1.97" Dia x 0.26" H (50.0mm x 6.5mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
|
Vishay
|
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Price and Stock
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- | 9A | 29.7mOhm Max | - | Transmitter | - | - | 10µH | - | - | - | -40°C ~ 85°C | - | 200 @ 100kHz | - | 1.97" Dia x 0.18" H (50.0mm x 4.5mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
|
Abracon LLC
|
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Price on request
Price and Stock
on Request |
- | - | 160mOhm | - | Receiver | - | - | 8.5µH | - | - | - | -25°C ~ 85°C | - | 25 @ 125kHz | - | 2.01" L x 1.57" W x 0.05" H (51.0mm x 40.0mm x 1.2mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
|
Abracon LLC
|
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Price and Stock
on Request |
- | - | 80mOhm | - | Receiver | - | - | 8µH | - | - | - | -25°C ~ 85°C | - | 30 @ 125kHz | - | 1.57" L x 1.57" W x 0.05" H (40mm x 40mm x 1.2mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
|
Abracon LLC
|
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Price and Stock
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- | - | 140mOhm | - | Receiver | - | - | 6.3µH | - | - | - | -25°C ~ 85°C | - | 26 @ 100kHz | - | 1.18" Dia x 0.08" H (30.0mm x 2.0mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
|
Vishay
|
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- | - | 240mOhm | - | Receiver | - | - | 15µH | - | - | - | -40°C ~ 105°C | - | 65 @ 200kHz | - | 1.89" L x 1.26" W x 0.07" H (48.0mm x 32.0mm x 1.9mm) | - | - | - | ±5% | 1 Coil, 1 Layer | - | - | - | |
|
Vishay
|
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22A | 7A | 40mOhm | - | Transmitter | - | - | 6.3µH | - | - | - | -40°C ~ 105°C | - | 190 @ 200kHz | - | 1.81" L x 1.81" W x 0.22" H (46.0mm x 46.0mm x 5.6mm) | - | - | - | ±5% | 1 Coil, 1 Layer | - | - | - | |
|
Vishay
|
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- | - | 427mOhm | - | Receiver | - | - | 22µH | - | - | - | -40°C ~ 105°C | - | 38 @ 200kHz | - | 1.89" L x 1.26" W x 0.06" H (48.0mm x 32.0mm x 1.6mm) | - | - | - | ±5% | 1 Coil, 1 Layer | - | - | - | |
|
Vishay
|
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- | - | 357mOhm | - | Receiver | - | - | 19.6µH | - | - | - | -40°C ~ 105°C | - | 29 @ 200kHz | - | 1.26" L x 0.87" W (32.0mm x 22.0mm) | - | - | - | ±5% | 1 Coil, 1 Layer | - | - | - | |
Abracon LLC
|
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Price on request
Price and Stock
on Request |
- | - | 290mOhm | - | Receiver | - | - | 12µH | - | - | - | -25°C ~ 85°C | - | 20 @ 100kHz | - | 0.79" L x 0.79" W x 0.03" H (20.0mm x 20.0mm x 0.8mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
Abracon LLC
|
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Price and Stock
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- | - | 1Ohm | - | Receiver, Transmitter | - | - | 14.9µH | - | - | - | -25°C ~ 85°C | - | 8.5 @ 100kHz | - | 0.59" Dia x 0.02" H (15.0mm x 0.6mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
Abracon LLC
|
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Price and Stock
on Request |
- | - | 150mOhm | - | Receiver, Transmitter | - | - | 6.3µH | - | - | - | -25°C ~ 85°C | - | 34 @ 100kHz | - | 0.79" Dia x 0.08" H (20.0mm x 2.0mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
Abracon LLC
|
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Price and Stock
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- | - | 320mOhm | - | Receiver | - | - | 10µH | - | - | - | -25°C ~ 85°C | - | 18.5 @ 100kHz | - | 1.02" Dia x 0.03" W (26.0mm x 0.8mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
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Vishay
|
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20A | 6A | 75mOhm | - | Transmitter | - | - | 24µH | - | - | - | -40°C ~ 105°C | - | 200 @ 200kHz | - | 1.85" Dia x 0.21" H (47.0mm x 5.3mm) | - | - | - | ±5% | 1 Coil, 1 Layer | - | - | - | |
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Vishay
|
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20A | 6A | 75mOhm | - | Transmitter | - | - | 24µH | - | - | - | -40°C ~ 105°C | - | 185 @ 200kHz | - | 1.81" L x 1.81" W x 0.21" H (46.0mm x 46.0mm x 5.3mm) | - | - | - | ±5% | 1 Coil, 1 Layer | - | - | - | |
Abracon LLC
|
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21A | 5.4A | 72mOhm | 3MHz | Receiver, Transmitter | - | - | 24µH | - | - | - | -25°C ~ 85°C | - | 160 @ 100kHz | - | 1.96" L x 1.96" W x 0.13 " H (50.0mm x 50.0mm x 3.5mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
Abracon LLC
|
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36A | 10.6A | 19mOhm | 6.4MHz | Receiver, Transmitter | - | - | 6.3µH | - | - | - | -25°C ~ 85°C | - | 72 @ 100kHz | - | 1.96" L x 1.96" W x 0.13 " H (50.0mm x 50.0mm x 3.5mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
Signal Transformer
|
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6A | 4A | 75mOhm Max | - | Transmitter | - | - | 10µH | - | - | - | -20°C ~ 85°C | - | - | - | 1.38" Dia x 0.13" H (35.0mm x 3.3mm) | - | - | - | ±10% | 1 Coil, 2 Layer | - | - | - | |
Abracon LLC
|
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27A | 5.7A | 72mOhm | 2.9MHz | Receiver, Transmitter | - | - | 24µH | - | - | - | -25°C ~ 85°C | - | 165 @ 100kHz | - | 1.96" L x 1.96" W x 0.15" H (50.0mm x 50.0mm x 4.0mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
Abracon LLC
|
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40A | 11.1A | 19mOhm | 5.7MHz | Receiver, Transmitter | - | - | 6.3µH | - | - | - | -25°C ~ 85°C | - | 72 @ 100kHz | - | 1.96" L x 1.96" W x 0.15" H (50.0mm x 50.0mm x 4.0mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - | |
|
Vishay
|
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- | 6.5A | 80mOhm Max | - | Transmitter | - | - | 11.3µH, 11.3µH, 11.3µH | - | - | - | -40°C ~ 125°C | - | 100 @ 100kHz, 100 @ 100kHz, 100 @ 100kHz | - | 3.90" L x 2.19" W x 0.16" H (99.0mm x 55.6mm x 4.0mm) | - | - | - | ±10% | 3 Coil, 1 Layer | - | - | - | |
|
Abracon LLC
|
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Price and Stock
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- | - | 80mOhm | - | Transmitter | - | - | 6.3µH | - | - | - | -40°C ~ 120°C | - | 60 @ 100kHz | - | 2.05" L x 1.38" W x 0.07" H (52.0mm x 35.0mm x 1.8mm) | - | - | - | - | 1 Coil, 1 Layer | - | - | - | |
|
Vishay
|
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- | 7A | 80mOhm Max | - | Transmitter | - | - | 9.8µH, 10.2µH, 9.8µH | - | - | - | -40°C ~ 125°C | - | 100 @ 100kHz, 100 @ 100kHz, 100 @ 100kHz | - | 4.01" L x 2.26" W x 0.19" H (101.8mm x 57.3mm x 4.7mm) | - | - | - | ±10% | 3 Coil, 1 Layer | - | - | - | |
TDK Corporation
|
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- | - | 60mOhm | - | Transmitter | - | - | 6.3µH | - | - | - | - | - | - | - | 1.97" Dia x 0.10" H (50.0mm x 2.5mm) | - | - | - | - | 1 Coil, 1 Layer | - | - | - | |
|
Vishay
|
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on Request |
- | 6.5A | 80mOhm Max | - | Transmitter | - | - | 12.5µH, 11.5µH, 12.5µH | - | - | - | -40°C ~ 85°C | - | 110 @ 100kHz, 100 @ 100kHz, 110 @ 100kHz | - | 4.17" L x 2.09" W x 0.24" H (106.0mm x 53.0mm x 6.0mm) | - | - | - | ±10% | 3 Coil, 1 Layer | - | - | - | |
|
Abracon LLC
|
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Price and Stock
on Request |
- | - | 55mOhm | - | Transmitter | - | - | 10µH | - | - | - | -40°C ~ 85°C | - | 135 @ 125kHz | - | 2.09" L x 2.09" W x 0.18" H (53.0mm x 53.0mm x 4.5mm) | - | - | - | ±10% | 1 Coil, 1 Layer | - | - | - |
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