| Bus-bar for big power solar panel: |
| Copper base | T2 copper tabe slitting |
| Copper substrate resistivity | ¦Ñ ¡Ü 0.0172¦¸mm2 / m |
| Solder composition | 62% Sn36% Pb2% Ag; 60% Sn40% Pb; 96.5% Sn3.5% Ag (Bi optional) |
| The thickness of the tin layer | 10¦Ìm-40¦Ìm, sided uniform |
| Thickness deviation | ¡Ü 0.008 |
| Width deviation | ¡Ü 0.005mm |
| Elongation | the soft state ¡Ý 20%; semi-soft state ¡Ý 15% |
| Product specifications | width 4mm, 5 mm, 6mm; thickness 0.15mm-0.3mm |
| Package | cardboard, I shape wheel, box |
