Special Chemical Materials

Number: W-001

Tin plated copper wire is made of 99.99% copper as the core wire, which is hot-dip tinned with a base alloy; The product has the characteristics of bright appearance, uniform color, strong adhesion of tin layer, and high oxidation resistance, and meets the standard of “SJ2422-83 Tin Plated Copper Wire for Electronic Components”; It is widely used for connecting wires, cables, electronic components’ electronic pins (leads), and PCB board jumper wires (jumpers).

There are three types of packaging methods: rubber shaft, rubber drum, and paper tube

1. Rubber shaft installation: Small rubber shaft: 3-5kg; Medium rubber shaft: 12-18kg; Large rubber shaft: 25-30kg;

2. Rubber drum packaging: 15-25kg;

3. Paper tube packaging: 18-25kg;

Appearance: The surface is bright, the color is uniform, and there are no abnormalities such as desoldering, black spots, cracks, burrs, yellowing, tin nodules, etc.

Wire diameter: allowable deviation ± 0.01mm

Tin plating thickness: Thin plating: 1.5-2.5mm; Medium plating: 2.5-4.0mm; Thick plating: above 4mm

Elongation rate: ≥ 15% (or according to customer requirements)

Conductivity: Low Conductivity: 16-18%; Medium conductivity: 18-22%; High conductivity: over 24%

Repeated bending: ≥ 4 times

Tensile strength: ≥ 245KG/mm2

Solderability: After immersion in lead-free tin at 250 ± 2 ℃ for 2 ± 0.5s, new tin can adhere to over 95%.

Aging test: Bake at 200 ± 5 ℃ for 1 hour without yellowing or blackening.

Continuity: After three cycles of testing with hydrochloric acid and sodium polysulfide solution, there was no exposed copper or black spots.

Bonding force: After being wrapped more than 6 times and immersed in saturated sodium polysulfide for testing, there are no cracks or blackening.

If you're ready to take the next step, Leave your message below and we’ll reply soon. 20+ years of chemical manufacturing & export experience, a partner you can trust.