Solderable Polyurethane Enameled Copper & Aluminum Wire
Direct-tinning magnet wire that solders through the enamel — removing the wire-stripping step from qualified coil-termination processes.
- Thermal class
- 155 · 180
- Conductors
- Copper · Aluminum
- Diameter
- 0.100 – 0.800 mm
- Key feature
- Direct solderability
What Is Solderable Magnet Wire?
Solderable magnet wire is an enameled winding wire that can be tinned directly through the enamel under defined soldering conditions, removing a separate wire-stripping step from qualified coil-termination processes. Jingda supplies it with copper or aluminum conductors in thermal classes 155 and 180.
Why direct soldering matters
Every joint on a conventional enameled wire needs the film stripped — mechanically or chemically — before termination. A solderable polyurethane film tins in the solder bath itself, so qualified processes skip that step entirely: fewer operations, fewer damaged conductors at the joint, and a termination that is set by bath temperature and time rather than operator skill.
What you get
- Excellent direct solderability under the conditions defined for the selected product
- Insulation that is non-corrosive to the conductor
- Copper and aluminum conductor options across classes 155 and 180
- Tight pinhole control — Grade 2 insulation continuity of 5 pinholes or fewer, tested lot by lot in Jingda’s CNAS-accredited laboratories
Jingda Solderable Wire Options
Select on the conductor material and the thermal class of your winding. All four options tin directly through the enamel under the conditions defined in the selected product specification.
| Product | Conductor | Thermal class | IEC | NEMA | JIS | Direct soldering |
|---|---|---|---|---|---|---|
| Class 155 Solderable Enameled Copper Wire | Copper | 155 | IEC 60317-20 | MW-79C | UEW | Yes |
| Class 180 Solderable Enameled Copper Wire | Copper | 180 | IEC 60317-51 | MW-82C | UEW | Yes |
| Class 155 Solderable Enameled Aluminum Wire | Aluminum | 155 | IEC 60317-20 | MW-79A | UEW | Yes |
| Class 180 Solderable Enameled Aluminum Wire | Aluminum | 180 | IEC 60317-51 | MW-82A | UEW | Yes |
Not a soldering process? See the 200-class enameled copper wire and 220-class enameled aluminum wire for dual-coat, high-temperature windings. For flat and other profiles, see shaped magnet wire.
Solderable Magnet Wire Specifications
| Parameter | Value |
|---|---|
| Standards | IEC 60317-20 (Class 155) · IEC 60317-51 (Class 180) |
| ANSI types | MW-79C · MW-82C (copper) | MW-79A · MW-82A (aluminum) |
| Jingda type designations | QA-*/155 · QA-*/180 (copper) | QA-*/155A · QA-*/180A (aluminum) | JIS UEW |
| Diameter range | 0.100 – 0.800 mm |
| Insulation | Solderable polyurethane-based enamel; non-corrosive to the conductor |
| Insulation build | Grade 1 (Single) · Grade 2 (Heavy) |
| Insulation continuity | Grade 1: ≤ 10 pinholes · Grade 2: ≤ 5 pinholes |
| Certifications & compliance | UL Recognized (Files E174580 · E248026) · RoHS and REACH reports available above |
| Nominal Ø (mm) | Max overall Ø (mm) | Min breakdown voltage (V) | Resistance at 20 °C (Ω/m) |
|---|---|---|---|
| 0.100 | 0.125 | 950 | 2.034 – 2.333 |
| 0.200 | 0.239 | 3500 | 0.5237 – 0.5657 |
| 0.400 | 0.459 | 4400 | 0.1316 – 0.1407 |
| 0.800 | 0.884 | 4900 | 0.03305 – 0.03500 |
Performance and Applications
Solder-bath parameters are matched to conductor size and film build during qualification, with copper and aluminum configurations selected by the coil design.
Typical Applications
Quality and Compliance
Every production lot is tested in Jingda’s CNAS-accredited laboratories against the applicable product specification and agreed requirements, including direct-solderability, pinhole and breakdown-voltage checks.
Product Datasheet
Complete dimensional, electrical and thermal tables for every published size and build.
View DatasheetQuality Certificates
Substance Compliance
Tongling Jingda Special Magnet Wire Co., Ltd.
We are one of the world’s leading magnet wire manufacturers, based in Tongling City — one of China’s principal copper production bases. Listed on the Shanghai Stock Exchange since 2002 (600577), the group runs a national-level enterprise technology centre, a national-level postdoctoral research station and the Jingda Magnet Wire Research Institute.
Jingda magnet wire is wound into products across new-energy vehicles, photovoltaics, robotics, aerospace, home appliances, specialty motors, 5G communications and electronics.
Ordering, Packaging and Delivery
| Commercial term | Detail |
|---|---|
| Minimum order quantity | 600 kg per type and conductor diameter. Sample and pilot-order quantities are agreed case by case. |
| Lead time | Stock available: dispatch from the next working day. Scheduled production: normally within 30 days, confirmed per order. |
| Incoterms | FOB by default; other Incoterms on request. |
| Quotation response | Within 1 business day. |
Spool types and packaging — copper and aluminum systems
Copper and aluminum spool families are supplied according to conductor type — copper on the PT-25 / PT-45 / PT-60 / PT-90 system, aluminum on the PT-25 / PT-60 / PT-200 / PT-270 system. Single spools for samples are packed in a wooden case or paper drum; volume shipments use fumigation-free wooden pallets with cartons or fibreboard collars and stretch film. Exact spool weight and pallet build are confirmed per order.
Frequently Asked Questions
What soldering temperature and time should be used?
Copper or aluminum — how do I choose for a solderable coil?
What is the difference between Grade 1 and Grade 2 for solderable wire?
Should I choose class 155 or class 180?
Can Jingda supply non-standard diameters or film builds?
Can we become a Jingda distributor or agent?
How does Jingda support customers after the order?
Request a Quote or Sample
Tell us your specification — a Jingda sales engineer will respond within 1 business day with a quotation or technical feedback.
