Magnetic Levitation Copper Coil 22×12mm | DIY Inductor

Take your DIY electronics and magnetic levitation projects to the next level with this precision-wound copper inductor coil. Measuring 22mm outer diameter × 12mm height with an 8mm inner diameter, this compact coil delivers consistent electromagnetic performance — perfect for hobbyists, makers, and engineers building custom levitation modules, sensor circuits, or inductive components.

Key Specifications

• Material: High-purity copper winding
• Dimensions: Outer Diameter 22mm (±0.5mm) × Height 12mm, Inner Diameter 8mm
• DC Resistance: ~6 Ohms
• Inductance: 7.4mH (1K, 0.25V)
• Use: DIY magnetic levitation systems, home electronics projects, and custom inductive assemblies
• Package Contents: 1 × Copper Inductor Coil

Why Choose This Coil?

• 🔧 Precise Winding — Tightly wound copper ensures stable inductance and low resistance for reliable circuit performance.
• 🧲 Magnetic Levitation Ready — Designed specifically for DIY levitation platforms and electromagnetic suspension experiments.
• ⚡ Known Electrical Values — DC resistance and inductance are pre-specified, saving you time on measurement and tuning.
• 📦 Compact Form Factor — The small 22×12mm profile fits neatly into custom enclosures, PCBs, and prototyping setups.
• 🛠️ Versatile DIY Component — Use it in oscillator circuits, inductive sensors, transformer prototypes, or educational demos.

Perfect For

• Magnetic levitation display or art projects
• Electronics hobbyists and STEM learners
• Custom PCB and breadboard prototyping
• Inductive sensor and coil replacement applications
• Maker spaces, engineering labs, and home workshops

Made in Mainland China.

Note: Due to manual measurement, please allow a tolerance of 1–3mm. Product color may vary slightly from images due to monitor display differences.

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Learn More About Electromagnetic Induction

For an in-depth overview of how inductors and electromagnetic coils work in electrical circuits, visit the National Institute of Standards and Technology (NIST) — a trusted authority on electrical measurement standards and physical sciences.

Frequently Asked Questions

Q: What is the inductance value of this copper coil?

A: This magnetic levitation copper coil has an inductance of 7.4mH, measured at 1K frequency and 0.25V. The DC resistance is approximately 6 ohms, making it suitable for a wide range of DIY inductive and levitation circuit applications.

Q: Can this coil be used in a DIY magnetic levitation project?

A: Yes! This 22×12mm copper inductor coil is specifically designed for use in DIY magnetic levitation systems. Its known electrical specifications (7.4mH inductance, ~6Ω DC resistance) make it easy to integrate into custom levitation modules, oscillator circuits, and electromagnetic suspension platforms.

Q: What are the exact dimensions of this coil?

A: The outer diameter is 22mm (±0.5mm), the height is 12mm, and the inner diameter is 8mm. Please allow a manual measurement tolerance of 1–3mm.

Q: Is this coil compatible with standard PCBs and breadboards?

A: The compact form factor makes it suitable for integration into custom enclosures, PCB layouts, and breadboard prototypes. Its standard inductor design allows it to be used across a variety of DIY electronics applications.