PV INTERCONNECT RIBBON

Reflecting Reliability

The cells are electrically connected using tinned copper ribbon known as PV Interconnect Ribbon, Tabbing Strip, Tabbing Ribbon, Stringing Ribbon. Tabbing ribbons are commonly applied as parallel strips that weave from the top of one cell to the bottom of the next to connect the positive and negative sides of the cells in series. The ribbon is soldered onto the paste that was applied to the TCO. The tabbing application creates a cluster of solar cells. The tabbing ribbon collects electric current within its cluster of solar cells and delivers it to the bus ribbon.

Other commonly used names for the PV Interconnect Ribbon are

Flat wire, Ribbon, String Wire, Photovoltaic Wire, PV Wire, Interconnecting tab, PV Copper Ribbon, Solar cell interconnect tabbing, Flattened copper wire, Solder plated copper ribbon, Tabbing Strip, Tabbing Ribbon , Stringing Ribbon.

SPECIFICATIONS

PARAMETERSVALUETOLERANCE
Width1.00 mm to 4.00 mm± 0.1 mm
Thickness0.10 mm to 0.25mm± 10 %
Resistivity1.7241-1.70µΩ/ cmIACS * — International Annealed Copper Standard
Yield Strength< 100 N/mm2 
Tensile Strength< 250 N/mm2 
ElongationBetween 20% and 37 %Semi Soft< 25 % Soft < 32 % Supper Soft < 38 %
Camber< 6 mm / 1000 mm 
Coating TypeVarious Solder Types as per customer requirement TypeThickness of coating can vary from .010mm to 0.050 mm
Packing typePulp Reel, Plastic Spools, Cut To LengthPacking Options and Sizes
ApplicationSolar Cells / Module , Contacts , Electronic Repair Kits
LEAD BASED SOLDERS
ALLOY COMPOSITIONSOLIDUSLIQUIDUS
SnPbAg°C°C
6040183191
62362179179
ALLOY COMPOSITIONSOLIDUSLIQUIDUS
SnPbAbBiCu°C°C
95.53.80.7MP217
962.510.5MP222
96.53.5221221
99.30.7227227
100MP232

Other variants available on request

PACKING OPTIONS

S.NOTYPED1D2L1L2D3
1Plastic152901109022,36
2Plastic16010016012822
3Plastic20012520016022,36
4Plastic5522420016036
5Pulp356101.4125.222

Cut to length option is also available for busbar for direct use.

PARAMETERS

Resistivity

Electrical Resistivity (Resistivity, specific electrical resistance, or volume Resistivity) is a measure of how strongly a material opposes the flow of electric current. A low resistivity indicates a material that readily allows the movement of electric charge.

BASE MATERIAL

Copper is one of the most useful metals known to man, and it was one of the first to be utilized. It has the second best electrical c onductivity of the metals, second only to silver compared to which it has a conductivity of 97%

  1. UNS C11000 ETP 99.90% (Electrolytic tough pitch copper) is available in regular practice and is the standard supplied base material in our Interconnect ribbon and Busbar.
  2. UNS C10200 OFHC 99.95% (Oxygen Free High Thermal Conductivity copper) is available on special request.

COATING COMPOSITION OR SOLDER TYPE

Solder is a fusible metal alloy used to join together metal

LEAD BASED SOLDERS
ALLOY COMPOSITIONSOLIDUSLIQUIDUS
SnPbAg°C°C
6040183191
62362179179
LEAD FREE SOLDERS
ALLOY COMPOSITIONSOLIDUSLIQUIDUS
SnPbAbBiCu°C°C
95.53.80.7MP217
962.510.5MP222
96.53.5221221
99.30.7227227
100MP232

The solders are available on customer request.

All solder coating come with a spectrometer test certificate ensuring the correct proportions and uniform coating quality.

AUTOMATED LASER CONTROLLED TOLERANCE LEVELED WINDING

The Spools and Reels are wound using state of the art automated systems giving a level and uniform winding to the finished ribbon for easy and hassle free unwinding.

 

TENSILE STRENGTH  / YIELD STRENGTH

Computerized System are used to measure the mechanical properties of the Interconnect ribbon and Photovoltaic Busbar material supplied has properties as follows

Tensile Strenght  < 250 N/mm2
Yield Strenght < 140 N N/mm2