Ultra-Fine Litz Wire for Advanced Wireless Charging Applications

As wireless charging systems continue to evolve toward higher power density and smaller form factors, traditional Litz wire faces increasing challenges in miniaturization, flexibility, and high-frequency performance.

HUAYE has successfully developed an ultra-fine self-bonding Litz wire solution designed for next-generation wireless charging applications, achieving outstanding conductor miniaturization while maintaining excellent winding performance and electrical reliability.

The technology has been successfully applied in wireless charging modules for smart wearable devices, including the Watch series, supporting compact and high-performance coil designs.

HUAYE has continuously pushed the limits of ultra-fine Litz wire manufacturing:

• Reduced single conductor diameter from 0.080 mm to 0.030 mm
• Advanced development toward 0.020 mm ultra-fine conductor technology
• Successfully developed ultra-fine self-bonding Litz wire for precision coil applications

HUAYE's ultra-fine Litz wire provides significant performance advantages:

• Reduced skin effect for improved high-frequency electrical performance
• Enhanced flexibility for complex and miniaturized coil winding
• Excellent elongation performance (>20%), exceeding the industry average level of approximately 15%
• Stable self-bonding performance for improved coil integrity and manufacturing efficiency
• Enables smaller, lighter, and higher-performance wireless charging designs

HUAYE's ultra-fine Litz wire is currently used in:

• Smartwatch wireless charging modules
• TWS earphone charging systems
• Miniaturized wireless charging coils
• Other high-density electronic applications