QA-1/180-0.039 Enameled Copper Wire – Grade 1 Polyurethane Class 180 Ultra-Fine 0.039mm
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CHINGCUNG® |
Micro Wire · Precision Engineering |
✦ GRADE 1 · 0.039 mm ✦
QA-1/180-0.039 Enameled Copper Wire
Polyurethane Class H (180°C) · Ultra-Fine for Micro Coils
QA-1/180-0.039: Engineered for Extreme Miniaturization
With a conductor diameter of 0.039mm, this Grade 1 polyurethane enameled copper wire is purpose-built for next-generation microelectronics. The Class 180 thermal rating ensures reliability in compact transformers, hearing aid coils, micro actuators, and fine-pitch voice coils. Grade 1 insulation minimizes outer diameter — essential for tight winding windows — while polyurethane chemistry enables direct soldering without stripping, streamlining automated assembly.
Technical Specifications – Micro Focus
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Dimensional Data – Grade 1 (0.039mm Reference)
Grade 1 ensures minimal insulation build-up. Comparison with Grade 2 shown below.
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Conductor Dia. (mm) |
Tolerance (±mm) |
Min Film Gr.1 (mm) |
Max O.D. Gr.1 (mm) |
Min Film Gr.2 (mm) |
Max O.D. Gr.2 (mm) |
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0.039 |
0.001 |
0.004 |
0.048 |
0.008 |
0.053 |
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0.04 |
0.001 |
0.004 |
0.049 |
0.008 |
0.054 |
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0.05 |
0.001 |
0.005 |
0.060 |
0.010 |
0.066 |
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0.06 |
0.001 |
0.006 |
0.072 |
0.012 |
0.079 |
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0.08 |
0.003 |
0.007 |
0.094 |
0.014 |
0.101 |
⚡ For 0.039mm ultra-fine wire, Grade 1 OD is ≤0.050mm — a critical advantage for high-density micro-coil designs. Solderability and 180°C thermal stability verified by IEC pin-hole testing.
Micro-Wire Engineering
Achieving consistent quality at 0.039mm requires specialized manufacturing expertise. CHINGCUNG employs ultra-fine drawing lines with continuous annealing to produce a copper core with exceptional circularity and surface finish. The polyurethane insulation is applied using laser-monitored concentric coating, ensuring Grade 1 uniformity and zero defect density. QA-1/180-0.039 is formulated for micro-coils operating at elevated temperatures (up to 180°C), where conventional polyester wires exhibit premature failure. Minimal pinhole counts preserve breakdown voltage integrity even under winding stress.
✦ Micro-Scale Advantages: Direct solderability eliminates risky mechanical stripping — vital for fragile ultra-fine wires. Class 180 thermal rating supports higher power density in compact form factors. Grade 1 outer diameter (max 0.048mm) maximizes copper fill factor, improving coil efficiency in volume-constrained applications. Superior windability reduces breakage during high-speed winding, boosting production yield.
✦ Quality Assurance: Every spool of QA-1/180-0.039 undergoes 100% pin-hole detection, continuity verification, and laser dimensional inspection. Our ISO Class 7 clean-room environment eliminates contamination risks. Full material traceability from copper rod to finished spool supports medical, automotive, and aerospace qualification requirements.
Commercial & General Information
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Typical Test Values – QA-1/180-0.039
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Property |
Test Method |
Typical Result |
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Temperature Index |
IEC 60172 |
180°C |
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Heat Shock |
IEC 60851-6 |
200°C / 30 min, no cracks |
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Cut-through Temp. |
IEC 60851-6 |
≥230°C |
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Breakdown Voltage (Gr.1) |
IEC 60851-5 |
Min 250V (twisted pair) |
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Solderability |
IEC 60851-11 |
≤ 2 sec at 400°C |
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Pin Hole Count |
High-voltage test |
0 / 30m |
Why CHINGCUNG for 0.039mm Micro Wire?
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Micro Precision Dedicated draw lines for 0.02–0.10mm range with ultra-low tension control. |
Clean Manufacturing ISO Class 7 clean-room production ensures zero particle contamination. |
Advanced Testing Laser diameter monitoring, online pinhole detection per batch. |
Global Technical Support Expert winding consultation and rapid logistics from Shanghai. |
CHINGCUNG has supplied ultra-fine enameled wires to hearing aid coil manufacturers, micro motor producers, and medical device OEMs worldwide. The unique combination of Grade 1 insulation, Class 180 thermal rating, and 0.039mm diameter offers a compelling solution for miniaturized electronics. Free sample evaluation and winding parameter assistance available.
Micro Wire Resources
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Product Video Request "QA-1/180-0.039 Micro Winding & Solderability Test" – demonstrating actual 0.039mm wire handling and soldering. |
Technical Data Pack Full dimensional table, thermal aging curves, and recommended winding tension chart available as PDF. |
FAQs – QA-1/180-0.039
- Q1: Is 0.039mm enameled wire difficult to wind?
A: QA-1/180-0.039 offers excellent tensile strength for its gauge. We recommend optimized tension settings and wire guide systems; our technical team provides detailed winding parameters. - Q2: Can it be soldered without stripping?
A: Yes. Dip the wire end into solder at 400°C for 1–2 seconds — the polyurethane coating decomposes, leaving a clean, tinned surface. - Q3: What is the breakdown voltage for 0.039mm Grade 1?
A: Typically ≥250V DC, meeting IEC standards for micro transformers and miniature coils. - Q4: Are sample spools available?
A: Yes, sample spools (500g, 1Kg) are available for engineering qualification. Lead time 7–10 days. - Q5: What packaging protects ultra-fine wire?
A: Anti-static PL-2 plastic spools with soft winding layers. Vacuum-sealed moisture barrier bags are available for long-term storage.
Shanghai Husu M&E Technology Co., Ltd
CHINGCUNG – Specialized in Micro & Self-bonding Enameled Wires
Room 402, Building 13, NO. 518 Xinzhuan Road, Songjiang District, Shanghai, China (201612)
Tel/WhatsApp: +86 13621982708 Email: leon.xu@chingcung.com
Web: https://chingcung.com | Inquiry for QA-1/180-0.039 Grade 1 micro wire
*All data typical based on continuous verification. For custom diameters below 0.039mm or special thermal grades, contact our R&D team.
CHINGCUNG® QA-1/180-0.039 | Ultra-Fine Enameled Copper Wire | Class 180 | Grade 1 | 0.039mm Micro Coil Solution
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