1.Dimension of transformer can be smaller by using our FIW wire of diverse thickness of enamel while product quality is the same good.
2.Save cost due to smaller dimension of transformer
3.Flexible enough to resist mechanical stress and good for winding
4.Class 180C temperature rating and less loss during soldering
5.30-60 times of evenly enameling, 3-5um thick enamel in liquid coating and 1-3um thick after curing
1. FIW has better insulation property and smaller overall diameter and is fit for sophisticated processing
2. FIW has better elongation and is suitable for high-speed winding without breakage 3. FIW is better in heat resistance with cut-through temperature up to 250℃
4. FIW can be soldered at a lower temperature
This FIW wire can be applied to small transformers, switching power supplies, etc., and it’ s the best new substitute material for three-layer insulated wire.
| Test Item | Standard Value | Test Result |
| Conductor Diameter | 0.130±0.002mm | 0.130mm |
| Thickness of insulation | Min. 0.082mm | 0.086mm |
| Overall diameter | Max. 0.220mm | 0.216mm |
| Continuity of covering
(50V/30m) |
Max. 60 pcs | Max. 0 pcs |
| Breakdown voltage | Min. 12,000V | Min. 13,980V |
| Resistance to softening | Continue 2 times pass | 250℃/Good |
| Solder test(380℃±5℃) | Max. 2s | Max. 1.5s |
| D.C Electrical resistance(20℃) | Max. 1348 Ω/km | 1290 Ω/km |
| Elongation | Min. 35% | 51% |
Customer Oriented,Innovation brings more Value
RUIYUAN is a solution provider, which requires us to be more professional on wires, insulation material and your applications.
Ruiyuan has a heritage of innovation, along with advancements in enameled copper wire, our company has grown through an unwavering commitment to integrity, service and responsiveness to our customers.
We look forward to continuing to grow on the basis of quality, innovation and service.
7-10 days Average delivery time.
90% European and North American customers. Such as PTR,ELSIT, STS etc.
95% Repurchase rate
99.3% Satisfaction rate. Class A supplier verified by German customer.
Our Team
Ruiyuan attracts many outstanding technical and management talents, and our founders have built the best team in the industry with our long-term vision. We respects the values of each employee and provides them with a platform to make Ruiyuan a great place to grow a career.