Air core Coil
Medium Large Flat Rounded Square Air Core Coil, Multi-Turn Self Bond Copper Winding, Wide Sensing Area For Tablet Wireless Charging & Large Area NFC Card Readers.
Product Overview
This medium-large flat rounded square coil adopts multi-turn dense self-bond enameled copper winding, air-core self-support forming without magnetic core. Larger square frame expands effective sensing coverage, ultra-thin flat body fits tablet and flat card reader housing, ultra-fine leads support quick PCB welding.
Core Advantages
- Enlarged rounded square outline: Maximize signal coverage for long-distance NFC identification and stable tablet wireless charging
- Ultra-thin flat winding: Save vertical assembly space for slim flat electronic equipment
- Air-core design: Eliminate magnetic saturation and hysteresis loss, consistent inductance under variable working distance
- High-purity copper wire: Low internal impedance, reduce heat loss and improve wireless energy transfer efficiency
- Fully customizable: Side length, inner hollow size, winding turns, wire thickness and lead stripping length adjustable