Self-Bonding Air Core Coils for High-Frequency Applications

Self-bonding air core coils offer compact, lightweight, and highly stable performance for high-frequency and precision electronics. Manufactured with adhesive-coated magnet wire, these coils bond securely without bobbins or additional support—perfect for RF circuits, micro motors, medical devices, and other sensitive applications.

 What Are Self-Bonding Air Core Coils?

Self-bonding coils are wound using special magnet wire coated with a thermoplastic bonding layer.
Once heat or solvent is applied, the wire turns fuse together, forming a rigid, self-supporting coil structure—eliminating the need for varnish, tapes, or plastic bobbins.

Key Features

 Advanced Self-Bonding Wire Technology

Heat-activated adhesive forms a strong, stable bond between coil turns, enhancing durability and simplifying assembly.

 Air-Core Design for High Frequencies

With no magnetic core, the coils deliver minimal losses, excellent high-frequency behavior, and stable inductance.

Compact & Lightweight Structure

Eliminating bobbins reduces weight and footprint—ideal for small devices and high-density PCB layouts.

High Mechanical Stability

The bonded structure offers strong resistance to vibration, shock, and thermal cycling.

Streamlined Production Process

Reduced steps, no impregnation or fixtures needed—lower cost and improved efficiency.

 Applications

 High-Frequency Inductors

Used in RF modules, wireless communication devices, and EMI-sensitive circuits.

Micro Transformers

Suitable for compact transformers requiring low mass and consistent geometry.

 Micro & Flat Motors

Ideal for precision motors and edgewise-wound flat motor coils.

 High-Power Speakers

Provides stability and heat resistance in speaker voice coil assemblies.

 Medical Electronics

Used in portable diagnostics, sensors, and compact medical instruments.

Why Choose Self-Bonding Air Core Coils?

• No bobbin required → smaller footprint

• Excellent vibration resistance

• Consistent coil geometry

• Supports automated winding

• Superior high-frequency response

 Custom Options Available

We offer custom designs, coil sizes, inductance values, wire gauges, shapes, and winding formats tailored to motors, RF devices, and power electronics.

Contact us today to discuss your project requirements. 

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