Wireless charging performance largely depends on the quality of transmitter coil. The G20 20 mm nano‑crystalline wireless charging transmitter coil is a compact high‑performance inductive component built for wireless charger module integration. With 10.4uH nominal inductance, nano‑crystalline core and high‑quality litz wire winding, this circular coil delivers outstanding magnetic‑flux concentration, low heating and stable energy transmission for compact wireless charging solutions.

Designed for module‑level assembly, this coil comes with pre‑tinned lead‑out wires for easy soldering onto PCBA. Its special notched outer profile helps accurate positioning during mass production assembly, well‑suited for custom wireless chargers, small household devices, wearable docking stations and compact charging pad projects.

• Product Model: G20 Wireless Charging Transmitter Coil
• Nominal Inductance: 10.4uH
• Outer Diameter: 20 mm
• Core Material: Nano‑crystalline core
• Conductor: Litz wire
• Structure: Circular notched shape, pre‑tinned outgoing wires
• Application: Wireless charging transmitter module
• Compliance: RoHS compliant
• Custom Service: Support custom inductance, wire specification and dimension
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Compared with conventional ferrite cores, nano‑crystalline material features high saturation magnetic flux density and excellent permeability. It effectively gathers magnetic field, reduces magnetic leakage and improves coupling efficiency between transmitter and receiver coil. Less stray magnetic interference brings higher stability for the whole charging system.

Adopting multi‑strand litz wire greatly suppresses skin‑effect and proximity‑effect loss under high‑frequency working conditions. It lowers coil temperature rise during continuous charging, avoids overheating risk and extends service life of charging modules.

The special notched outer outline provides anti‑offset positioning during glue‑fixing or housing assembly. Pre‑stripped & tinned leads simplify soldering work for SMT or manual assembly. Compact 20 mm footprint saves valuable PCB space for miniaturized charger design.

Tightly controlled winding process guarantees tight inductance tolerance. Uniform inductance across batches ensures consistent charging power and reliability for mass‑produced end products.

• Compact wireless charging transmitter modules
• Small‑size custom wireless charging pads
• Wearable device charging docks
• Smart home accessory chargers
• Consumer electronics custom wireless charging solution

We are a professional manufacturer of wireless charging coils, inductors and transformers. Beyond standard G20 10.4uH transmitter coil, we support full‑range OEM & ODM customization: adjusting inductance value, coil dimension, wire type and terminal way according to your module requirements. Samples are available for your prototype evaluation, with stable mass‑order MOQ.

If you are developing high‑efficiency compact wireless charging modules and seeking reliable transmitter coil suppliers, welcome to contact us for datasheet, sample and quotation.

G20 10.4uH 20mm nano‑crystalline litz wire wireless charging transmitter coil for compact wireless charger module. Low loss, low heat, support custom for consumer electronics charging solution.