Tinned Copper Interconnect
Tinned copper interconnects also known as Tabbing Ribbon, Solar Wire, Cell Connector, String Connector, PV Ribbon, PV Connect etc. are conductive components made from copper that has been coated with a thin layer of solderable alloys made from various metals such as silver, tin , lead, indium , etc.
These interconnects are used to connect solar cells / strings of solar cells within a solar module, forming electrical pathways for the flow of electricity generated by the cells.
Applications
Tinned copper interconnects are a crucial component in the manufacturing of solar modules. They provide reliable electrical connections between individual solar cells, enabling the modules to efficiently capture and transmit solar energy.
Key Characteristics
Conductivity
Copper is chosen for its high electrical conductivity, allowing for efficient transmission of electricity generated by the solar cells.
Corrosion Resistance
The tin coating on the copper wire provides corrosion resistance, protecting the interconnects from environmental factors such as moisture and humidity, which are common in outdoor solar installations.
Solderability
The tin coating facilitates soldering of the interconnects to the solar cells and other components, ensuring secure and durable connections.
Flexibility
Tinned copper interconnects are designed to be flexible, allowing them to conform to the shape of the solar cells and withstand mechanical stress during the manufacturing process and throughout the lifespan of the solar module.
Temperature Resistance
The interconnects must be able to withstand the temperature fluctuations experienced in solar module operation without compromising their electrical conductivity or structural integrity.
Compatibility
Tinned copper interconnects are compatible with various solar cell technologies and module designs, making them a versatile choice for solar module manufacturers.
Range of Products Manufactured for Poly / Monoperc /Topcon Modules
1. Cell Interconnects
Width: 0.35 mm to 2.0 mm, Thickness: 0.15 to 0.30mm Round: 0.23mm to 0.36 mm
2. Bussing
Width 3mm to 10 mm, Thickness 0.25 mm to 0.5mm
3. LOW TEMPERATURE ALLOYS
Packing Type Cylindrical and Bi Conical 2 Kg to 25 Kgs
4. ALLOY TYPES
Leaded (Sn/Pb)
Lead Free (Sn/Ag), (Sn/Ag/Cu)
Low temperature alloys (Sn/Bi/Pb),(Sn/Bi/Ag),(Sn/Bi)
5. LEADED
6. LEAD FREE
Packing Type
Spool | Type | d1(mm) | d2(mm) | d3(mm) | L1(mm) | L2(mm) | Weight / Spool | Figure Reference |
Cylindrical | P10S | 152 | 100 | 20 | 121.5 | 101 | 5 | A |
Cylindrical | P10S | 152 | 90 | 16 | 122 | 101 | 5 | A |
Ashton Cox | Din 200 | 200 | 125 | 20 | 200 | 160 | 15 | A |
Cylindrical | Din 250 | 250 | 125 | 20 | 250 | 200 | 20 | A |
Cylindrical | HKV 160 (IEC) | 160 | 80 | 20 | 160 | 90 | 8 | B |
Bi-Conical | HKV 160 (CN) | 160 | 90 | 16 | 160 | 90 | 8 | B |
Bi-Conical | PCK160 A (16) | 160 | 90 | 16 | 122 | 90 | 8 | C |
Bi-Conical | PCK 160 A(20) | 160 | 90 | 20 | 122 | 90 | 8 | C |
Bi-Conical | PCK 160 B(16) | 160 | 85 | 16 | 140 | 100 | 10 | C |
Bi-Conical | VCK 160 C(20) | 160 | 85 | 20 | 160 | 120 | 12 | C |