520 W TOPCon solar panel with 108 cells. Voc 40.82 V · Isc 16.16 A · TcVoc -0.22%/°C.
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60 panels found · 3645 panels excluded
515 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.82 V | 40.62 V | 0.5% |
| Vmpp | 33.85 V | 33.65 V | 0.6% |
| Isc | 16.16 A | 16.09 A | 0.4% |
| Impp | 15.36 A | 15.31 A | 0.3% |
| TcVoc | -0.22 %/°C | -0.22 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
525 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.82 V | 41.02 V | 0.5% |
| Vmpp | 33.85 V | 34.05 V | 0.6% |
| Isc | 16.16 A | 16.23 A | 0.4% |
| Impp | 15.36 A | 15.42 A | 0.4% |
| TcVoc | -0.22 %/°C | -0.22 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
510 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.82 V | 40.42 V | 1.0% |
| Vmpp | 33.85 V | 33.45 V | 1.2% |
| Isc | 16.16 A | 16.02 A | 0.9% |
| Impp | 15.36 A | 15.25 A | 0.7% |
| TcVoc | -0.22 %/°C | -0.22 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
530 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.82 V | 41.22 V | 1.0% |
| Vmpp | 33.85 V | 34.25 V | 1.2% |
| Isc | 16.16 A | 16.3 A | 0.9% |
| Impp | 15.36 A | 15.48 A | 0.8% |
| TcVoc | -0.22 %/°C | -0.22 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
505 W
IBC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.82 V | 40.85 V | 0.1% |
| Vmpp | 33.85 V | 33.84 V | 0.0% |
| Isc | 16.16 A | 15.62 A | 3.3% |
| Impp | 15.36 A | 14.93 A | 2.8% |
| TcVoc | -0.22 %/°C | -0.2 %/°C | ±0.020 %/°C |
| TcPmax | -0.24 %/°C | -0.26 %/°C | ±0.020 %/°C |
505 W
HPBC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.82 V | 40.85 V | 0.1% |
| Vmpp | 33.85 V | 33.84 V | 0.0% |
| Isc | 16.16 A | 15.62 A | 3.3% |
| Impp | 15.36 A | 14.93 A | 2.8% |
| TcVoc | -0.22 %/°C | -0.2 %/°C | ±0.020 %/°C |
| TcPmax | -0.24 %/°C | -0.26 %/°C | ±0.020 %/°C |
500 W
ABC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.82 V | 40.81 V | 0.0% |
| Vmpp | 33.85 V | 34.37 V | 1.5% |
| Isc | 16.16 A | 15.39 A | 4.8% |
| Impp | 15.36 A | 14.55 A | 5.3% |
| TcVoc | -0.22 %/°C | -0.22 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.26 %/°C | ±0.020 %/°C |
500 W
ABC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.82 V | 40.81 V | 0.0% |
| Vmpp | 33.85 V | 34.37 V | 1.5% |
| Isc | 16.16 A | 15.39 A | 4.8% |
| Impp | 15.36 A | 14.55 A | 5.3% |
| TcVoc | -0.22 %/°C | -0.22 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.26 %/°C | ±0.020 %/°C |
500 W
ABC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.82 V | 40.81 V | 0.0% |
| Vmpp | 33.85 V | 34.37 V | 1.5% |
| Isc | 16.16 A | 15.39 A | 4.8% |
| Impp | 15.36 A | 14.55 A | 5.3% |
| TcVoc | -0.22 %/°C | -0.22 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.26 %/°C | ±0.020 %/°C |
515 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.82 V | 40.9 V | 0.2% |
| Vmpp | 33.85 V | 33.9 V | 0.1% |
| Isc | 16.16 A | 15.96 A | 1.2% |
| Impp | 15.36 A | 15.2 A | 1.0% |
| TcVoc | -0.22 %/°C | -0.24 %/°C | ±0.020 %/°C |
| TcPmax | -0.24 %/°C | -0.29 %/°C | ±0.050 %/°C |
515 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.82 V | 40.9 V | 0.2% |
| Vmpp | 33.85 V | 33.9 V | 0.1% |
| Isc | 16.16 A | 15.96 A | 1.2% |
| Impp | 15.36 A | 15.2 A | 1.0% |
| TcVoc | -0.22 %/°C | -0.24 %/°C | ±0.020 %/°C |
| TcPmax | -0.24 %/°C | -0.29 %/°C | ±0.050 %/°C |
500 W
IBC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.82 V | 40.75 V | 0.2% |
| Vmpp | 33.85 V | 33.73 V | 0.4% |
| Isc | 16.16 A | 15.53 A | 3.9% |
| Impp | 15.36 A | 14.83 A | 3.5% |
| TcVoc | -0.22 %/°C | -0.2 %/°C | ±0.020 %/°C |
| TcPmax | -0.24 %/°C | -0.26 %/°C | ±0.020 %/°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
40.82 V
Vmpp
33.85 V
Isc
16.16 A
Impp
15.36 A
TcVoc
-0.22 %/°C
TcPmax
-0.24 %/°C
Pmax
520 W
Cells
108
Length
1960 mm
Width
1134 mm
Thickness
30 mm
Weight
28 kg
The Maysun Solar MS520MTDG-54HR is a 520 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 |
|---|---|---|---|
| MS490MTDG-54HR | 490 W | 39.61 V | 15.74 A |
| MS495MTDG-54HR | 495 W | 39.81 V | 15.81 A |
| MS500MTDG-54HR | 500 W | 40.02 V | 15.88 A |
| MS505MTDG-54HR | 505 W | 40.22 V | 15.95 A |
| MS510MTDG-54HR | 510 W | 40.42 V | 16.02 A |
| MS515MTDG-54HR | 515 W | 40.62 V | 16.09 A |
| MS525MTDG-54HR | 525 W | 41.02 V | 16.23 A |
| MS530MTDG-54HR | 530 W | 41.22 V | 16.3 A |
The most critical specs to match are: cell count (must be exactly 108), Voc close to 40.82 V (within ±5%), and temperature coefficient TcVoc close to -0.22%/°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 Maysun Solar MS520MTDG-54HR.