Our Interconnect Wire is rolled from round wire in a proprietary process, then solder coated on all four sides. This combination of processes results in superior coatings and a completely burr free product. Our PV Ribbon products are produced from the highest quality material with each order engineered to your dimensional and physical property specifications.
Photovoltaic ribbon, also known as PV Ribbon or Solar Ribbon, is a hot-dipped tinned copper flat conductor that collects the current from the photovoltaic cells. It connects the individual solar cells and carries the generated current to the distribution system.
| PV Interconnect Ribbon & PV Busbar Range | |||
|---|---|---|---|
| Interconnect Ribbon | Busbar | ||
| Available Sizes | Width(mm) | 0.8 ≈ 2.5 | 3.0 ≈ 8.0 |
| Thickness(mm) | 0.1 ≈ 0.3 | 0.1 ≈ 0.4 | |
| Standard Coating Thickness | ≥20μm (Single Side) | ||
| Lead Coating | |||
| Sn60Pb40 | Sn62Pb36Ag2 | - | |
| Coating Type | RoHS Complianced (Lead Free) Coating | ||
| Sn100 | Sn96Ag35 (Tin96.5% , Silver 3.5%) | SnAgCu | |
| Softness | Elongation | Yield Strength | - |
| Flexible | ≥25% | ≤70 | |
| Supper Flexible | ≥30% | ≤60 | |
| Extream Flexible | ≥35% | ≤55 | |
| Quality | Confirms To | Semi PV-19 0811, Semi PV-18 0811 | |
| An ISO 9001-2008 Certified COmpany | |||
| Base Metal Specification | ||
|---|---|---|
| Specification Of the CORE Base Metal (Copper) | ||
| Interconnect Ribbon | Busbar | |
| Copper Grades | Cu-Etp | |
| Cu-OF | ||
| Resistivity | ≤ 1.707 x10-8 ῼmm2 @20° c | |
| Density | 8.89 gm/cm3 | |
| Conductivity (100% min) | ≥ 101 % | |
| Tolerance Value | ||
| Thickness Tolerance | ± 0.008 mm | |
| Width Tolerance | ± 0.080 mm | |
| Specifications Of The Solder COating | ||
|---|---|---|
| Interconnect Ribbon | Busbar | |
| Tin Coating Thickness | ≥20μm (**Other Thickness is available on request) | ≥20μm (**Other Thickness is available on request) |
| Tin Thickenss Coating Error | ±0.005 mm | ±0.009 mm |
| Type Of Coating And Composition | Curing Temperature (°c) | Liquefaction Temperature(°c) |
| Leaded (Non-RoHS) 60Sn40Pb | 183 °c | 190 °c |
| Leaded (Non RoHS) 62Sn36Pb2Ag | 179 °c | 189 °c |
| RoHS Complianced Lead Free 96.5Sn3.5Ag / Sn100 / SnAgCu | 221 °c | 221 °c |
| Observed Value Of BKT PV Interconnect Ribbon & Busbar | ||
|---|---|---|
| Testing Name | Interconnect Ribbon | Busbar |
| Dimensions Tolerance | ±0.008 mm X ±0.08mm | ±0.016 mm X ±0.010mm |
| Straightness | ≤4mm / 1000mm | ≤3mm / 1000mm |
| Solder Coating Thickness Tolerance | ±0.005mm | ±0.009mm |
| Tensile Strength | 135 Mpa ≤ Ts ≤ 250 Mpa | 135 Mpa ≤ Ts ≤ 250 Mpa |
| Yield Strength (Rp0.02%) | 50 MPa ≤ Ys ≤ 70 Mpa | ≤ 130 Mpa |
| Elongation | ≥ 25 % | ≥ 25 % |
| Electrical Resistivity | ≤ 2.2 X 10-8 ῼm@20 °c | ≤ 2.2 X 10-8 ῼm@20 °c |
| Salt Atmosphere Test | 168h | 168h |
| Bending Radius | ≥ 7 Times | ≥ 7 Times |
| High Temprature and High Humidity | 1000h | 1000h |
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