SELF-BONDING ENAMELLED COPPER WIRE

PRODUCT OVERVIEW

SBW is a specialized magnet wire incorporating an additional bonding layer over the primary enamel insulation.

After winding, the bonding layer can be activated by heat, solvent, or another specified process to form a mechanically stable coil without requiring conventional external bonding materials in selected applications.

The product can be supplied with different base insulation systems and thermal classes according to application requirements.

APPLICATIONS

• Compact electrical coils

• Voice coils

• Loudspeakers

• Small motors

• Relays

• Solenoids

• Sensors

• Inductors

• Precision electromagnetic components

• Miniature electronic devices

STANDARDS

• IEC 60317 series

• NEMA MW 1000 series

• JIS C 3202

• Customer-specific specifications

CONSTRUCTION

Conductor: Annealed copper
Primary Insulation: Enamel
Bonding Layer: Self-bonding coating
Conductor Shape: Round
Thermal Class: Typically 130–200°C depending on insulation system

TECHNICAL DATA

KEY FEATURES

• Integrated self-bonding layer

• Excellent coil stability

• Reduced need for external bonding materials

• Suitable for compact windings

• Good dimensional consistency

• Excellent winding flexibility

• Available in different thermal classes

AVAILABLE FORMS

• Fine round wire

• Standard round wire

• Precision winding wire

• Custom diameter

• Different bonding activation systems

PACKING

• Plastic spools

• Precision winding spools

• Protective cartons

• Pallets

• Customized export packaging

QUALITY ASSURANCE

Quality control can include conductor diameter, insulation thickness, dielectric breakdown, elongation, adhesion, flexibility, heat shock, bond strength, surface quality, and dimensional consistency.

PRODUCT CONFIGURATION

Self-bonding wire can be customized according to:

• Conductor diameter

• Copper grade

• Insulation system

• Thermal class

• Bonding activation method

• Insulation build

• Bond strength

• Spool size

• Customer winding process

FAQ

Q1: What is SBW?
A: SBW stands for Self-Bonding Enamelled Copper Wire. It incorporates a bonding layer over the primary enamel insulation.

Q2: How does the bonding layer work?
A: The bonding layer can be activated through heat, solvent, or a specified combination process, depending on the selected product construction.

Q3: What are the main applications?
A: It is commonly considered for compact coils, voice coils, loudspeakers, small motors, relays, sensors, solenoids, and inductors.

Q4: Can the thermal class be customized?
A: Yes. Different insulation and bonding systems can be selected to meet the required thermal class and application conditions.

Q5: What information is required for product selection?
A: Conductor diameter, thermal class, winding method, activation method, operating temperature, voltage, required bond strength, and spool configuration should be specified.

Q6: Can SBW replace conventional coil bonding?
A: In selected applications, the self-bonding layer can reduce or eliminate the need for separate external bonding materials. The suitability depends on the coil design and manufacturing process.