495 W TOPCon solar panel with 108 cells. Voc 39.75 V · Isc 15.79 A · TcVoc -0.25%/°C.
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171 panels found · 4168 panels excluded
495 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.75 V | 39.8 V | 0.1% |
| Vmpp | 33.14 V | 33.1 V | 0.1% |
| Isc | 15.79 A | 15.83 A | 0.3% |
| Impp | 14.94 A | 14.97 A | 0.2% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
495 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.75 V | 39.83 V | 0.2% |
| Vmpp | 33.14 V | 33.11 V | 0.1% |
| Isc | 15.79 A | 15.83 A | 0.3% |
| Impp | 14.94 A | 14.96 A | 0.1% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
495 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.75 V | 39.67 V | 0.2% |
| Vmpp | 33.14 V | 33.02 V | 0.4% |
| Isc | 15.79 A | 15.9 A | 0.7% |
| Impp | 14.94 A | 14.99 A | 0.3% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
500 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.75 V | 39.83 V | 0.2% |
| Vmpp | 33.14 V | 33.17 V | 0.1% |
| Isc | 15.79 A | 15.96 A | 1.1% |
| Impp | 14.94 A | 15.08 A | 0.9% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
495 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.75 V | 39.81 V | 0.2% |
| Vmpp | 33.14 V | 32.85 V | 0.9% |
| Isc | 15.79 A | 15.81 A | 0.1% |
| Impp | 14.94 A | 15.07 A | 0.9% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
500 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.75 V | 39.7 V | 0.1% |
| Vmpp | 33.14 V | 33.1 V | 0.1% |
| Isc | 15.79 A | 16.08 A | 1.8% |
| Impp | 14.94 A | 15.11 A | 1.1% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
495 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.75 V | 39.8 V | 0.1% |
| Vmpp | 33.14 V | 33.1 V | 0.1% |
| Isc | 15.79 A | 15.83 A | 0.3% |
| Impp | 14.94 A | 14.97 A | 0.2% |
| TcVoc | -0.25 %/°C | -0.24 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
490 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.75 V | 39.9 V | 0.4% |
| Vmpp | 33.14 V | 32.96 V | 0.5% |
| Isc | 15.79 A | 15.73 A | 0.4% |
| Impp | 14.94 A | 14.88 A | 0.4% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
490 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.75 V | 39.49 V | 0.7% |
| Vmpp | 33.14 V | 32.91 V | 0.7% |
| Isc | 15.79 A | 15.75 A | 0.3% |
| Impp | 14.94 A | 14.89 A | 0.3% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.3 %/°C | ±0.000 %/°C |
500 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.75 V | 40.01 V | 0.7% |
| Vmpp | 33.14 V | 33.38 V | 0.7% |
| Isc | 15.79 A | 15.83 A | 0.3% |
| Impp | 14.94 A | 14.98 A | 0.3% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.3 %/°C | ±0.000 %/°C |
490 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.75 V | 39.61 V | 0.4% |
| Vmpp | 33.14 V | 32.65 V | 1.5% |
| Isc | 15.79 A | 15.74 A | 0.3% |
| Impp | 14.94 A | 15.01 A | 0.5% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
495 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.75 V | 39.7 V | 0.1% |
| Vmpp | 33.14 V | 33.7 V | 1.7% |
| Isc | 15.79 A | 15.64 A | 0.9% |
| Impp | 14.94 A | 14.69 A | 1.7% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
String Compatibility Calculator
Verify the replacement panel works with your inverter
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
39.75 V
Vmpp
33.14 V
Isc
15.79 A
Impp
14.94 A
TcVoc
-0.25 %/°C
TcPmax
-0.3 %/°C
Pmax
495 W
Cells
108
Bifaciality
80%
Length
1960 mm
Width
1134 mm
Thickness
30 mm
Weight
26.6 kg
The Sunpro Power SPDG495-N108R12 is a 495 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 |
|---|---|---|---|
| SPDG480-N108R12 | 480 W | 38.96 V | 15.66 A |
| SPDG485-N108R12 | 485 W | 39.24 V | 15.7 A |
| SPDG490-N108R12 | 490 W | 39.49 V | 15.75 A |
| SPDG500-N108R12 | 500 W | 40.01 V | 15.83 A |
| SPDG505-N108R12 | 505 W | 40.24 V | 15.88 A |
The most critical specs to match are: cell count (must be exactly 108), Voc close to 39.75 V (within ±5%), and temperature coefficient TcVoc close to -0.25%/°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 Sunpro Power SPDG495-N108R12.