Product Specification

CHINGCUNG®

Precision Enameled Wire · Micro Specialist

⚡ ULTRA-FINE GRADE 1 | DIAMETER 0.03 mm

QA-1/180-0.03 Enameled Copper Wire
Polyurethane Class 180 | Micro-Diameter for High-Precision Coils

Extreme Fine Wire Technology – 0.03mm, direct solderable, thermal class 180

✨ QA-1/180-0.03: Engineered for Micro Electronics

With a conductor diameter of just 0.03mm (AWG 49.5 approx.), this Grade 1 polyurethane enameled copper wire is designed for ultra-compact electromagnetic components. The QA-1/180 thermal rating (Class H, 180°C) ensures reliability in miniaturized transformers, hearing aid coils, micro motors, and fine-pitch voice coils. Grade 1 insulation minimizes outer diameter, critical for space-constrained winding, while polyurethane chemistry allows direct soldering without stripping — ideal for high-density automated assembly.

Technical Specifications – Micro Focus

Ultra-Fine Dimensional Data – Grade 1 (0.03mm Reference)

For QA-1/180-0.03, the Grade 1 insulation ensures minimal build-up. The table below shows the exact film thickness and maximum outer diameter for 0.03mm conductor compared to other micro sizes.

⚡ Note: For 0.03mm ultra-fine wire, Grade 1 provides approx. 30% thinner OD compared to Grade 2. This space advantage is critical in micro-coil designs with limited winding window. Standard max outer diameter for QA-1/180-0.03 Grade 1 is ≤0.040mm. Solderability & thermal stability 180°C verified by IEC pin-hole test.

Micro-Wire Engineering & Performance

Manufacturing enameled wire down to 0.03mm requires exceptional process precision. CHINGCUNG utilizes dedicated ultra-fine drawing lines and continuous annealing to achieve a uniform copper core with perfect circularity. The polyurethane insulation is applied with laser-controlled concentricity, guaranteeing Grade 1 film uniformity and defect-free surface. QA-1/180-0.03 is specially designed for micro-coils that operate at high temperature (up to 180°C) where traditional polyester wires fail. Low pinhole counts ensure high breakdown voltage retention even after winding stress.

✦ Key Advantages for Micro Applications: Direct solderability eliminates mechanical stripping – a crucial feature for ultra-fine wires that are easily damaged. The thermal class 180 allows compact designs to meet higher temperature limits without insulation degradation. Grade 1 outer diameter (max 0.035-0.037mm) provides maximum copper space factor, improving coil efficiency in limited volume. Additionally, excellent windability reduces wire breaks during high-speed winding processes.

✦ Stringent Quality Control: Every spool of QA-1/180-0.03 undergoes 100% pin-hole detection, continuity testing, and dimensional check via laser micrometers. Our clean-room environment ensures zero contamination for ultra-fine wire production. Traceability from raw copper rod to final spool is maintained to meet medical, automotive and aerospace specifications.

General & Commercial Information

QA-1/180-0.03 Test Values (Typical)

Why CHINGCUNG for Ultra-Fine Wire (0.03mm)?

CHINGCUNG has successfully supplied ultra-fine enameled wires to hearing aid coil manufacturers, micro motor producers and medical device OEMs globally. The combination of Grade 1 insulation, class 180 thermal rating and 0.03mm diameter delivers a unique solution for next-generation miniaturized electronics. Our engineers provide winding parameter assistance and free sample evaluation.

Micro Wire Resources

QA-1/180-0.03 – Specific FAQs

• Q1: Is 0.03mm enameled wire difficult to handle during winding?
  A: QA-1/180-0.03 uses high-purity copper and precise enamel application, offering excellent tensile strength for its size. We recommend optimized tension and wire guide systems; our technical team can provide winding parameters.
• Q2: Can QA-1/180-0.03 be soldered without stripping?
  A: Yes, polyurethane insulation is directly solderable. Dip the wire end into solder pot at 400°C for 1-2 seconds — the coating decomposes, leaving a clean tinned surface.
• Q3: What is the typical breakdown voltage for Grade1 0.03mm wire?
  A: Typically ≥600V DC, meeting IEC standards for micro transformers and miniature coils.
• Q4: Do you provide sample spools for 0.03mm?
  A: Yes, sample spools (500g, 1Kg) are available for engineering qualification. Lead time 7-10 days.
• Q5: What packaging is used to protect ultra-fine wire?
  A: Anti-static PL-2 plastic spools with soft layer to avoid wire damage. Vacuum-sealed moisture barrier bags available for long-term storage.