Shanghai Husu M&E Technology Co., Ltd
| Solderability | 390 ± 5 ℃ |
| Standard Compliance | IEC 60317-20, GB/T 6109.10, NEMA MW 75-C |
| Packaging Details | Spools, Cartons, Pallets, Wooden Boxes |
| Payment Terms | T/T |
| Delivery Time | 1-2 Weeks |
| Conductor Diameter | 0.04 mm – 0.40 mm (custom sizes available) |
| Heat Shock | 175℃ |
| Insulation Material | Polyurethane (PU) |
| Thermal Class | 155 (Class F) |
| Application Focus | Small transformers, relays, micro motors, solenoids, voice coils, automotive electronics |
| Conductor Material | Electrolytic Copper (Oxygen-free high purity) |
| Cut-through Temperature | ≥200℃ |
| Film Grade | Grade 1 (Single coating) — minimal insulation increment |
| Supply Ability | 10 Tons/Month |
| Place of Origin | Jiangsu, Zhejiang |
| Certification | RoHS |
| Brand Name | CHINGCUNG |
| Model Number | QA-1/155 |
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Product Specification
| Solderability | 390 ± 5 ℃ | Standard Compliance | IEC 60317-20, GB/T 6109.10, NEMA MW 75-C |
| Packaging Details | Spools, Cartons, Pallets, Wooden Boxes | Payment Terms | T/T |
| Delivery Time | 1-2 Weeks | Conductor Diameter | 0.04 mm – 0.40 mm (custom sizes available) |
| Heat Shock | 175℃ | Insulation Material | Polyurethane (PU) |
| Thermal Class | 155 (Class F) | Application Focus | Small transformers, relays, micro motors, solenoids, voice coils, automotive electronics |
| Conductor Material | Electrolytic Copper (Oxygen-free high purity) | Cut-through Temperature | ≥200℃ |
| Film Grade | Grade 1 (Single coating) — minimal insulation increment | Supply Ability | 10 Tons/Month |
| Place of Origin | Jiangsu, Zhejiang | Certification | RoHS |
| Brand Name | CHINGCUNG | Model Number | QA-1/155 |
CHINGCUNG® Special Enameled Wire Expert
Premium Grade 1 – Polyurethane Enameled Copper Wire
Ideal for high-frequency coils, transformers, motors & precision windings — optimized insulation thickness for compact designs
Why QA-1/155 Grade 1?
Grade 1 provides minimum insulation film thickness, allowing smaller outer diameters and higher winding density. Perfect for applications where space factor is critical. Combines excellent solderability (direct solder without stripping) and thermal endurance up to 155°C.
Technical Specifications (Grade 1 Focus)
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|
Dimensional Characteristics — Grade 1 (Minimum Film Increase)
Compared to Grade 2, QA-1/155 offers thinner insulation build, maximizing copper fill factor. Below table shows typical conductor diameters with min. film thickness & max. outer diameter for Grade 1 (Grade 2 shown for reference only).
|
Conductor Dia. (mm) |
Tolerance (±mm) |
Min Film Thick. Grade 1 (mm) |
Max O.D. Grade 1 (mm) |
Min Film Thick. Grade 2 (mm) |
Max O.D. Grade 2 (mm) |
|
0.10 |
±0.003 |
0.008 |
0.117 |
0.016 |
0.125 |
|
0.20 |
±0.003 |
0.014 |
0.226 |
0.027 |
0.239 |
|
0.30 |
±0.004 |
0.019 |
0.334 |
0.035 |
0.352 |
|
0.40 |
±0.005 |
0.021 |
0.439 |
0.040 |
0.459 |
Note: Grade 1 provides approx. 20-30% thinner outer diameter vs Grade 2, enabling compact coil designs and reduced copper loss. Data based on IEC 60317-20 standard. For ultra-fine sizes (0.02-0.04mm) contact our engineers.
Product Overview & Core Features
CHINGCUNG QA-1/155 enameled copper wire is manufactured under strict process control, combining high-purity copper conductor with a uniform polyurethane insulating film. The Grade 1 build is specifically designed for engineers who prioritize compact winding windows, high slot fill factor, and efficient heat dissipation. Unlike conventional Grade 2 wires, our QA-1/155 minimizes insulation build-up while maintaining excellent dielectric strength and thermal stability.
✦ Key engineering advantages: Direct solderability eliminates pre-stripping, reducing assembly costs. The polyurethane varnish provides outstanding moisture resistance and chemical stability. QA-1/155 also exhibits superior adherence and flexibility, passing mandatory mandrel wrap tests without insulation cracking. From small solenoids to intricate automotive sensors, this wire ensures consistent performance.
✦ Quality commitment: Each production lot undergoes pin-hole testing, continuity checking, and breakdown voltage verification. Our lab is equipped with automated testers ensuring every spool matches IEC/NEMA standards. And as a specialized enameled wire supplier, we provide full traceability from raw copper rod to finished wire.
Electrical & General Information
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|
Performance Parameters (Typical Values)
|
Property |
Test Method |
QA-1/155 Value |
|
Temperature Index |
IEC 60172 |
155°C |
|
Heat Shock (1d winding) |
IEC 60851-6 |
175°C / 30min, no cracks |
|
Cut-through Temperature |
IEC 60851-6 |
≥200°C |
|
Breakdown Voltage (Room temp, Grade 1) |
IEC 60851-5 |
Min 2.0KV (depends on diameter) |
|
Resistance to Solvents |
IEC 60851-4 |
Class 1 (standard) |
|
Solderability |
IEC 60851-11 |
≤2 sec at 390°C |
Why Choose CHINGCUNG for QA Series?
|
Precision Manufacturing Fully automated enameling lines with laser diameter control, ensuring uniform Grade 1 film thickness. |
Flexible Supply 10 tons/month capacity for special wires, MOQ as low as 1 spool for samples. |
Global Logistics Located in Shanghai with strategic freight partners — fast air/sea delivery worldwide. |
R&D Support Over 10y experience in self-bonding & special enameled wires, technical consultation available. |
✅ With dedicated factory base in Jiangsu & Zhejiang, CHINGCUNG has been supplying reliable enameled wires to transformer manufacturers, motor rewinding workshops, and electronics OEMs globally. Our quality system ensures zero defect policy and on-time delivery. Choose QA-1/155 for projects that demand tight winding space without compromising electrical safety.
Product Resources
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Product Demonstration Video Request video: "QA-1/155 Enameled Wire – Solderability & Flexibility Test". Contact our sales team to get production line footage and QA process video. |
Technical Data Sheet Full dimensional table, chemical resistance and thermal endurance curves available as PDF upon request. |
Frequently Asked Questions (QA-1/155)
Shanghai Husu M&E Technology Co., Ltd
CHINGCUNG Brand – Professional Enameled Wire Manufacturer
Address: 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-1/155 Grade 1 wire now
*All data based on standard test methods, continuous improvement policy applies. Contact our engineers for custom diameters, thermal class or bonding requirements.
CHINGCUNG® QA-1/155 Polyurethane Enameled Copper Wire | Grade 1 Focused | Low space factor | Reliable for global OEMs
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2015
Total Annual:
1,000,000-10,000,000
Employee Number:
100~110
Ecer Certification：
Verified Supplier
Shanghai Husu M&E Technology Co., Ltd has been a reliable supplier of high-performance enameled wires since 2015. Under our brand CHINGCUNG, we serve global manufacturers with quality products and professional service. EVMagnetWire.com is our dedicated platform for regular enameled ... Shanghai Husu M&E Technology Co., Ltd has been a reliable supplier of high-performance enameled wires since 2015. Under our brand CHINGCUNG, we serve global manufacturers with quality products and professional service. EVMagnetWire.com is our dedicated platform for regular enameled ...
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