Overview
This Class 2 self-bonding solderable polyurethane enameled round copper wire is manufactured to JIS standards. It adopts uniform polyurethane insulation with a thermally activated self-bond outer coating. The wire features outstanding direct solderability without stripping enamel, enabling fast and clean soldering for micro coil assembly. After heating or solvent treatment, the self-bond layer melts and bonds wires tightly together to fix coil shapes without extra fixtures. It delivers stable resistance to thermal shock and softening breakdown, maintaining reliable insulation under continuous operating temperature. A full range of conductor diameters is available to meet demands of miniature inductors, voice coils and precision micro-motors.
Paramaters
| Parameter | Figure |
| Model NO. | 2LOCKCS |
| Enamel Grade | 2 |
| Temperature Class (℃) | 155 |
| DC Resistance (Ω/m20℃) | 0.399~0.427 |
| Elongation (≥%) | 25 |
| Tensile Strength (>Mpa) | 240 |
| Pinhole Test (5m≤) | 1 |
Product Features
Grade 2 Polyurethane Insulation
Uniform and complete enamel coating with stable dielectric strength, good resistance to thermal shock and softening breakdown. Insulation thickness is strictly controlled to avoid thin coating defects
Thermal Self-bonding Outer Layer
The outer bonding layer melts under heat treatment to tightly stick wires together, fixing coil shapes without extra winding fixtures. Even self-bond film thickness on R corners guarantees consistent bonding adhesion
Excellent Direct Solderability
The polyurethane coating evaporates quickly during soldering with no need for enamel stripping, forming smooth, fully-wetted solder joints and boosting production efficiency.
Complete Size Range
Various standard conductor diameters in stock; customized specifications are available to fit miniature voice coils, micro inductors and precision small motors
Applications
Tiny Inductors, Wireless Charging Coils and Miniature Transformers, Camera Motors, Phone Vibration Motors and Small Precision Motors, Small Fixed-shape Coils
