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Self-bonding coils represent a specialized category of electromagnetic wire featuring a heat-activated adhesive coating. Manufactured by Suzhou Yusheng Electronics Co. Ltd., the 0.07×140mm yellow self-bonding copper coil (11TS FLW-H) incorporates Teflon insulated litz wire construction. This design enables the creation of compact electromagnetic components without requiring additional adhesives or fasteners during assembly. The coil's dimensions and characteristics make it appropriate for applications where space constraints and assembly efficiency are primary considerations.
Parameter | Specification |
Conductor Type | 3UEWH |
Insulated Wire Type | Teflon Insulated Litz Wire |
Insulated Wire Model | 0.07×140 11TS FLW-H(LZ)-XQ |
Coil Color | Yellow |
Coil Configuration | Individual unit |
Number of Turns | 11TS |
Coil Inside Diameter | Φ18±0.5mm |
Coil Outside Diameter | Maximum 36.5mm |
This coil features a 0.07mm conductor thickness, allowing integration into devices with limited internal space. The 140mm width provides sufficient material for detailed assembly processes. The litz wire construction consists of multiple individually insulated strands twisted together, which helps reduce skin effect losses at higher frequencies compared to solid wire of equivalent cross-sectional area.
The FLW-H designation indicates a higher bonding strength formulation of the self-bonding coating. When exposed to appropriate temperatures, the adhesive layer activates and bonds adjacent windings together. This eliminates the need for separate gluing or potting processes during manufacturing. Once set, the bonded structure maintains its shape under mechanical stress and vibration.
The 11-turn (11TS) winding configuration balances electrical conductivity with mechanical flexibility. This balance allows the coil to be formed into various curves and angles while maintaining consistent electrical performance. The individual unit construction ensures uniform characteristics across production batches.
The 0.07×140mm self-bonding copper coil finds use in various industrial applications requiring miniaturized electromagnetic components. These include micro-electronic devices, hearing aids, smartwatches, and miniature circuit boards. The coil's thin profile enables placement in locations where conventional coils cannot fit. The yellow color provides visual distinction in complex assemblies, assisting with quality control and assembly verification processes.
Each coil undergoes visual inspection to ensure compliance with established quality criteria. Acceptable units must be free from discoloration, physical damage, copper exposure, scratches, contamination, cracks, oxidation, black spots, and foreign objects. These verification steps help maintain consistency in product performance and appearance across production runs.
A self-bonding copper coil features a specialized adhesive coating on the wire insulation. When heated to the activation temperature, this coating melts and bonds adjacent windings together. Upon cooling, the adhesive solidifies, creating a rigid, self-supporting coil structure that maintains its shape without additional support.
Teflon insulation provides high temperature resistance and dielectric strength. Litz wire construction reduces alternating current losses caused by the skin effect, resulting in more efficient operation at higher frequencies. The combination of these properties makes the coil suitable for applications requiring both thermal stability and electrical efficiency.
The specific activation temperature depends on the coating formulation and application method. Manufacturers typically provide detailed heating guidelines based on the intended assembly process and equipment capabilities.
The coil maintains an inside diameter tolerance of ±0.5mm around the nominal 18mm dimension. The outside diameter is controlled to a maximum of 36.5mm. These tolerances help ensure proper fit in designed applications.
For commercial procurement inquiries regarding the 0.07×140mm yellow self-bonding copper coil (11TS FLW-H), please contact Suzhou Yusheng Electronics Co. Ltd. Our team can provide additional technical information and assist with order specifications to meet your industrial application requirements.
