1. Tin coated copper ribbon
1.1 Resistivity: ≤0.023Ωm㎡ / m.
1.2 Dimensions: Thickness tolerance ± 0.01mm, width tolerance ± 0.1mm.
1.3 sickle bending: ≤5mm / 1000mm.
1.4 Yield Strength: soft state ≤100Mpa, super-soft state ≤70Mpa.
1.5 Tensile strength: ≤250 Mpa.
1.6 Elongation: ≥25%.
1.7 Reliability Test: neutral salt spray test≥168 hours, double test ≥2000 85 hours.
2. Copper base
2.1 Material: TU0 / CU-OF≥99.99%, TU1 / CU-OF≥99.97%, T2 / CU-ETP≥99.9%, conductivity ≥100% IACS.
2.2 Resistivity: TU / CU-OF≤0.0165Ωm㎡ / m, T2 / CU-ETP≤0.0172Ωm㎡ / m.
2.3 Hardness: ≤47HV.
2.4 Status: Soft-state or super soft state.
2.5 Elongation: ≥30%.
2.6 Thickness tolerance: ± 0.003mm, width tolerance: ± 0.05mm.
3. Solder
3.1 leaded type
(1) 63% Sn37% Pb mp 183 ℃
(2) 60% Sn40% Pb mp 191 ℃
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