Number:
MT-W-003
Brand:
Standard
Introduction:
Tinned copper wire is made of 99.99% red copper as the core wire, and is made of hot-dip tin-based alloy; the product has the characteristics of bright appearance, uniform color, strong adhesion of tin layer, high oxidation resistance, etc., and meets the "SJ2422-83 Tinned copper wire for electronic components" standard; it is now widely used in wires and cables, electronic pins (leads) of electronic components and PCB board connection jumpers (jumpers).
Product performance:
| Serial number | Items | Features |
|
1 |
Appearance | Surface is bright and uniform in color, without tin stripping, black spots, cracks, burrs, yellowing, tin nodules and other abnormalities. |
| 2 | Wire diameter | Allowable deviation ±0.01mm. |
| 3 | Tin plating thickness | Thin plating: 1.5-2.5mm; medium plating: 2.5-4.0mm; thick plating: 4 mm or more |
| 4 | Elongation | ≥15% (or as required by customers) |
|
5 |
Repeated bending | ≥4 times |
| 6 | Tensile strength |
≥245KG/mm2 |
| 7 | Solderability | 250±2℃ lead-free tin immersion for 2±0.5s, new tin can adhere to more than 95%. |
|
8 |
Aging test |
200±5℃ baking for 1 hour, no yellowing or blackening. |
|
9 |
Continuity | After three cycles of hydrochloric acid and sodium polysulfide solution testing, there is no copper exposure or black spots. |
| 10 | Binding Strength | After winding more than 6 times and immersing in saturated sodium polysulfide, there is no crack or blackening. |
