Medium Flat Rounded Rectangle Air Core Coil, Uniform Multi-Turn Copper Winding, Stable Magnetic Field For Mobile Phone Wireless Charging & Medium-Size NFC Tags.
Product Overview
This medium flat oblong coil is wound with evenly arranged multi-turn self-bond enameled copper wire, air-core self-support forming without magnetic core. Standard oblong size matches mainstream smartphone wireless charging cavity layout, ultra-thin flat thickness saves internal assembly space, consistent winding ensures even magnetic field distribution, fine thin leads support easy PCB soldering.
Core Advantages
- Standard rounded rectangular outline: Perfect fit for mainstream mobile phone back housing wireless charging receiver layout
- Uniform dense flat winding: Balanced inductance and magnetic penetration for stable charging & NFC recognition
- Air-core design: No magnetic saturation and hysteresis loss, consistent performance under variable transmission distance
- High-conductivity oxygen-free copper wire: Low internal DC resistance, reduce heat loss and boost energy transfer efficiency
- Fully customizable: Length & width dimension, inner hollow size, winding turns, wire gauge and lead stripping length adjustable

















