0.030x7x4x4 Stranded Copper Litz Wire Low Loss For Transformers / Chock Coils
This multi-strand high-frequency self-bonding litz wire features individual conductors coated with Grade 2 polyurethane (UEW) enamel insulation plus an extra thermal self-bonding coating. The complete bundle is twisted in Z-lay direction with stable lay length, effectively suppressing skin and proximity loss at high frequency. The wire can be hot-pressed to form integrated fixed coils without binding tape, offering excellent solderability, uniform enamel film, and low pinhole count. Ideal for high-frequency inductors, micro motors, wireless charging coils, and transformers.
| Parameter | Figure |
|---|---|
| Lay length (mm) | 18 ± 2 |
| Model No. | LZ2SBUEWZ |
| Single Wire Diameter (mm) | 0.030 |
| Stranding Structure | 7×4×4 |
| DC Resistance (Ω/m) | 3.00~3.10 |
| Total Diameter (mm) | 0.119~0.138 |
| Pinhole Test | ≤ 1pcs/5 |
- Single Wire Insulation: Grade 2 Polyurethane (UEW) enamel coating, directly solderable without stripping enamel
- Bonding Feature: Extra self-bonding coating on enamel layer, heat pressable for coil shaping and fixation
- Stranding Structure: Multi-strand bunched with Z-lay twist direction, stable strand structure, no loose wire during winding
- Core Advantage: Suppresses skin and proximity loss under high frequency, flexible for winding, coil self-forming after thermal curing
- Power Supply
- EV Charging Stations
- Photovoltaic & Energy Storage
- Industrial Power Electronics
- Transformer
- Medical Electronics
Qualified Certification: Zhongke Huaye is a national high-tech and provincial single-champion enterprise with abundant independent patents. Certified with IATF16949, ISO9001, ISO14001 and UL, serving as a reliable Tier 1 supplier for many famous new energy and electronic brands.
Stable Mass Production & Fast Delivery: Dual production bases in Xianning and Dongguan, plus newly-built Vietnamese factory. Company owns full-automatic enameling, stranding and profiling production lines. Flexible production supports customized and bulk orders with stable capacity and short lead time.
Strict Quality Control & Premium Performance: All products are customizable with full online inspection for pinholes, dimensions and DC resistance. Customized products feature uniform insulation, low high-frequency loss, excellent bending resistance and stable electrical performance.
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