0.071mm x 840 Strands Silk Covered Litz Wire for EV Wireless Charging | Class F 155°C

In the rapidly evolving field of Electric Vehicle (EV) infrastructure, efficiency is paramount. Our Silk Covered Litz Wire, featuring a precision construction of 840 strands of 0.071mm enameled copper wire, is engineered specifically to meet the rigorous demands of high-power wireless power transfer (WPT) systems.

Optimized for High-Frequency Efficiency By utilizing 840 individual strands of ultra-fine UEW (enameled round copper) wire, this litz wire significantly minimizes the skin effect and proximity effect. This architecture ensures exceptionally low DC resistance (≤0.005392Ω-0.005392Ω/m) and reduced eddy current losses, allowing for maximum energy efficiency during the high-frequency induction required for EV charging.

Superior Thermal and Mechanical Protection Rated at Class F (155°C), this wire is built to withstand the thermal stresses of continuous high-current operation. The outer layer is served with high-quality Nylon yarn (Silk covered), which provides excellent mechanical flexibility, enhanced dielectric strength (2800V), and superior abrasion resistance. This protective layer ensures the coil maintains its structural integrity even in compact, tightly wound wireless charging pads.

Reliability You Can Trust Every spool undergoes stringent testing to guarantee performance. With a controlled twist pitch of 40±10mm and a smooth surface finish, our wire offers excellent solderability at 390±5∘C. Whether you are developing residential charging stations or public fast-charging infrastructure, our silk-covered litz wire delivers the reliability and electrical performance necessary for the next generation of e-mobility.