440 W TOPCon solar panel with 108 cells. Voc 39.45 V · Isc 13.77 A · TcVoc -0.25%/°C.
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192 panels found · 4147 panels excluded
435 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.45 V | 39.3 V | 0.4% |
| Vmpp | 33.6 V | 33.43 V | 0.5% |
| Isc | 13.77 A | 13.72 A | 0.4% |
| Impp | 13.1 A | 13.01 A | 0.7% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.3 %/°C | ±0.000 %/°C |
435 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.45 V | 39.41 V | 0.1% |
| Vmpp | 33.6 V | 33.38 V | 0.7% |
| Isc | 13.77 A | 13.71 A | 0.4% |
| Impp | 13.1 A | 13.03 A | 0.5% |
| TcVoc | -0.25 %/°C | -0.24 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.31 %/°C | ±0.010 %/°C |
440 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.45 V | 39.6 V | 0.4% |
| Vmpp | 33.6 V | 33.56 V | 0.1% |
| Isc | 13.77 A | 13.79 A | 0.1% |
| Impp | 13.1 A | 13.11 A | 0.1% |
| TcVoc | -0.25 %/°C | -0.24 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.31 %/°C | ±0.010 %/°C |
430 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.45 V | 39.15 V | 0.8% |
| Vmpp | 33.6 V | 33.26 V | 1.0% |
| Isc | 13.77 A | 13.67 A | 0.7% |
| Impp | 13.1 A | 12.92 A | 1.4% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.3 %/°C | ±0.000 %/°C |
440 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.45 V | 39.38 V | 0.2% |
| Vmpp | 33.6 V | 32.81 V | 2.4% |
| Isc | 13.77 A | 13.86 A | 0.7% |
| Impp | 13.1 A | 13.41 A | 2.4% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
445 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.45 V | 39.59 V | 0.4% |
| Vmpp | 33.6 V | 33.02 V | 1.7% |
| Isc | 13.77 A | 13.93 A | 1.2% |
| Impp | 13.1 A | 13.48 A | 2.9% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
435 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.45 V | 39.6 V | 0.4% |
| Vmpp | 33.6 V | 33.14 V | 1.4% |
| Isc | 13.77 A | 13.82 A | 0.4% |
| Impp | 13.1 A | 13.13 A | 0.2% |
| TcVoc | -0.25 %/°C | -0.24 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
445 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.45 V | 39.6 V | 0.4% |
| Vmpp | 33.6 V | 33 V | 1.8% |
| Isc | 13.77 A | 14 A | 1.7% |
| Impp | 13.1 A | 13.5 A | 3.1% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
445 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.45 V | 39.6 V | 0.4% |
| Vmpp | 33.6 V | 33 V | 1.8% |
| Isc | 13.77 A | 14 A | 1.7% |
| Impp | 13.1 A | 13.5 A | 3.1% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
445 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.45 V | 39.6 V | 0.4% |
| Vmpp | 33.6 V | 33 V | 1.8% |
| Isc | 13.77 A | 14 A | 1.7% |
| Impp | 13.1 A | 13.5 A | 3.1% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
425 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.45 V | 39.38 V | 0.2% |
| Vmpp | 33.6 V | 33.71 V | 0.3% |
| Isc | 13.77 A | 13.27 A | 3.6% |
| Impp | 13.1 A | 12.61 A | 3.7% |
| TcVoc | -0.25 %/°C | -0.24 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.31 %/°C | ±0.010 %/°C |
425 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 39.45 V | 39.38 V | 0.2% |
| Vmpp | 33.6 V | 33.71 V | 0.3% |
| Isc | 13.77 A | 13.27 A | 3.6% |
| Impp | 13.1 A | 12.61 A | 3.7% |
| TcVoc | -0.25 %/°C | -0.24 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.31 %/°C | ±0.010 %/°C |
String Compatibility Calculator
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How the Algorithm Works
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Voc
39.45 V
Vmpp
33.6 V
Isc
13.77 A
Impp
13.1 A
TcVoc
-0.25 %/°C
TcPmax
-0.3 %/°C
Pmax
440 W
Cells
108
Length
1722 mm
Width
1134 mm
Thickness
30 mm
Weight
20.5 kg
The Perlight Solar PLM-440H8NB-108 is a 440 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 |
|---|---|---|---|
| PLM-425H8NB-108 | 425 W | 39 V | 13.62 A |
| PLM-430H8NB-108 | 430 W | 39.15 V | 13.67 A |
| PLM-435H8NB-108 | 435 W | 39.3 V | 13.72 A |
The most critical specs to match are: cell count (must be exactly 108), Voc close to 39.45 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 Perlight Solar PLM-440H8NB-108.