0.032mm Enameled Copper Magnet Wire For High-Precision Current Sensors
Core Characteristics, Why use such fine PU enameled wire?
Ultra-fine diameter: Enables miniaturized coil winding, meeting the requirements of product miniaturization and high density.
Polyurethane (PU) enamel coating characteristics:
High conductivity: The copper core provides an excellent conductive foundation.
| Characteristics | Technical requests | Test Results | Conclusion | ||
| Sample 1 | Sample 2 | ||||
| Surface | Good |
| OK | OK | OK |
| Bare Wire Diameter | 0.032± | 0.001 | 0.032 | 0.032 | OK |
| 0.001 | |||||
| Coating Thickness | ≥ 0.005 mm | 0.009 | 0.008 | OK | |
| Overall Diameter | ≤ 0.042 mm | 0.041 | 0.04 | OK | |
| Conductor Resistance | ≤ 22.843 Ω/m | 22.032 | 22.076 | OK | |
| Elongation | ≥ 10 % | 14 | 15 | OK | |
| Breakdown Voltage | ≥ 275 V | 1456 | 1312 | OK | |
| Pinhole Test | ≤ 5 faults/5m | 0 | 0 | OK | |
| Continuity | ---- | ---- | ---- | ---- | |
| Test Items | Technical Requests | Resulat |
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| Adhesive | Coating layer is good | OK |
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| Cut-through | 230℃ 2min no breakdown | OK |
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| Heat Shock | 200± 5℃/30min no crack | OK |
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| Solder Ability | 390± 5℃ 2Sec Smooth | OK |
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| Solvent Resistance | No blister, no expansion, no shed | OK |
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