640 W TOPCon solar panel with 156 cells. Voc 57.33 V · Isc 14.05 A · TcVoc -0.26%/°C.
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78 panels found · 4261 panels excluded
635 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 57.33 V | 57.18 V | 0.3% |
| Vmpp | 48.01 V | 47.89 V | 0.2% |
| Isc | 14.05 A | 13.99 A | 0.4% |
| Impp | 13.33 A | 13.26 A | 0.5% |
| TcVoc | -0.26 %/°C | -0.26 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.3 %/°C | ±0.000 %/°C |
645 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 57.33 V | 57.49 V | 0.3% |
| Vmpp | 48.01 V | 48.17 V | 0.3% |
| Isc | 14.05 A | 14.11 A | 0.4% |
| Impp | 13.33 A | 13.39 A | 0.5% |
| TcVoc | -0.26 %/°C | -0.26 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.3 %/°C | ±0.000 %/°C |
640 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 57.33 V | 57.34 V | 0.0% |
| Vmpp | 48.01 V | 48.02 V | 0.0% |
| Isc | 14.05 A | 13.98 A | 0.5% |
| Impp | 13.33 A | 13.33 A | 0.0% |
| TcVoc | -0.26 %/°C | -0.25 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
640 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 57.33 V | 57.4 V | 0.1% |
| Vmpp | 48.01 V | 48.22 V | 0.4% |
| Isc | 14.05 A | 13.86 A | 1.4% |
| Impp | 13.33 A | 13.28 A | 0.4% |
| TcVoc | -0.26 %/°C | -0.25 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.3 %/°C | ±0.000 %/°C |
630 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 57.33 V | 57.02 V | 0.5% |
| Vmpp | 48.01 V | 47.73 V | 0.6% |
| Isc | 14.05 A | 13.94 A | 0.8% |
| Impp | 13.33 A | 13.2 A | 1.0% |
| TcVoc | -0.26 %/°C | -0.26 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.3 %/°C | ±0.000 %/°C |
645 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 57.33 V | 57.47 V | 0.2% |
| Vmpp | 48.01 V | 48.17 V | 0.3% |
| Isc | 14.05 A | 14.04 A | 0.1% |
| Impp | 13.33 A | 13.39 A | 0.5% |
| TcVoc | -0.26 %/°C | -0.25 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
635 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 57.33 V | 57.2 V | 0.2% |
| Vmpp | 48.01 V | 48.05 V | 0.1% |
| Isc | 14.05 A | 13.82 A | 1.6% |
| Impp | 13.33 A | 13.22 A | 0.8% |
| TcVoc | -0.26 %/°C | -0.25 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.3 %/°C | ±0.000 %/°C |
635 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 57.33 V | 57.21 V | 0.2% |
| Vmpp | 48.01 V | 47.86 V | 0.3% |
| Isc | 14.05 A | 13.92 A | 0.9% |
| Impp | 13.33 A | 13.27 A | 0.5% |
| TcVoc | -0.26 %/°C | -0.25 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
630 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 57.33 V | 57.3 V | 0.1% |
| Vmpp | 48.01 V | 47.48 V | 1.1% |
| Isc | 14.05 A | 14.04 A | 0.1% |
| Impp | 13.33 A | 13.29 A | 0.3% |
| TcVoc | -0.26 %/°C | -0.25 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
650 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 57.33 V | 57.24 V | 0.2% |
| Vmpp | 48.01 V | 47.87 V | 0.3% |
| Isc | 14.05 A | 14.31 A | 1.9% |
| Impp | 13.33 A | 13.58 A | 1.9% |
| TcVoc | -0.26 %/°C | -0.25 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
635 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 57.33 V | 57.5 V | 0.3% |
| Vmpp | 48.01 V | 47.67 V | 0.7% |
| Isc | 14.05 A | 14.09 A | 0.3% |
| Impp | 13.33 A | 13.34 A | 0.1% |
| TcVoc | -0.26 %/°C | -0.25 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
635 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 57.33 V | 57.51 V | 0.3% |
| Vmpp | 48.01 V | 48.09 V | 0.2% |
| Isc | 14.05 A | 13.93 A | 0.9% |
| Impp | 13.33 A | 13.21 A | 0.9% |
| TcVoc | -0.26 %/°C | -0.24 %/°C | ±0.020 %/°C |
| TcPmax | -0.3 %/°C | -0.3 %/°C | ±0.000 %/°C |
String Compatibility Calculator
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Panel Matcher
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Find an inverter that fits your panel array with the right MPPT range and DC/AC ratio.
How the Algorithm Works
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Voc
57.33 V
Vmpp
48.01 V
Isc
14.05 A
Impp
13.33 A
TcVoc
-0.26 %/°C
TcPmax
-0.3 %/°C
Pmax
640 W
Cells
156
Bifaciality
80%
Length
2465 mm
Width
1134 mm
Thickness
30 mm
Weight
32.5 kg
The Waaree Energies BiN-17-640 is a 640 W solar panel. Finding a compatible replacement requires matching the original electrical characteristics — particularly Voc, Vmpp, Isc, and temperature coefficients — to ensure safe operation within the same string.
Use the form above to find panels that match these specifications. Then verify the replacement in the String Compatibility Calculator with your inverter.
| Model | Power | Voc | Isc |
|---|---|---|---|
| BiN-08-600 | 600 W | 53.3 V | 14.17 A |
| BiN-17-615 | 615 W | 56.55 V | 13.78 A |
| BiN-17-620 | 620 W | 56.71 V | 13.83 A |
| BiN-17-625 | 625 W | 56.88 V | 13.88 A |
| BiN-17-630 | 630 W | 57.02 V | 13.94 A |
| BiN-17-635 | 635 W | 57.18 V | 13.99 A |
| BiN-17-645 | 645 W | 57.49 V | 14.11 A |
The most critical specs to match are: cell count (must be exactly 156), Voc close to 57.33 V (within ±5%), and temperature coefficient TcVoc close to -0.26%/°C. If Voc differs significantly, the string voltage at extreme temperatures may shift outside the inverter's MPPT range. The replacement finder above pre-screens all candidates by these criteria.
A higher wattage panel usually has a higher Vmpp or Isc, which can affect string voltage and current. Small increases (up to 10–15%) are typically safe if the other electrical specs align. The replacement finder shows a compatibility score — 'Exact match' means the specs align closely. Always verify the replacement in the String Compatibility Calculator with your inverter before installation.
If the replacement has a significantly different Voc or Vmpp, the string voltage may shift outside the inverter's MPPT range, reducing energy production or causing faults. This effect is amplified at temperature extremes: at low temperatures, voltage rises by the TcVoc coefficient. The replacement finder automatically accounts for this — it scores candidates by how closely the electrical specs match the original Waaree Energies BiN-17-640.