340 W PERC solar panel with 120 cells. Voc 40.24 V · Isc 10.68 A · TcVoc -0.27%/°C.
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15 panels found · 4324 panels excluded
345 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.24 V | 40.49 V | 0.6% |
| Vmpp | 33.45 V | 33.76 V | 0.9% |
| Isc | 10.68 A | 10.73 A | 0.5% |
| Impp | 10.16 A | 10.22 A | 0.6% |
| TcVoc | -0.27 %/°C | -0.27 %/°C | ±0.000 %/°C |
| TcPmax | -0.36 %/°C | -0.36 %/°C | ±0.000 %/°C |
350 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.24 V | 40.73 V | 1.2% |
| Vmpp | 33.45 V | 34.07 V | 1.9% |
| Isc | 10.68 A | 10.79 A | 1.0% |
| Impp | 10.16 A | 10.27 A | 1.1% |
| TcVoc | -0.27 %/°C | -0.27 %/°C | ±0.000 %/°C |
| TcPmax | -0.36 %/°C | -0.36 %/°C | ±0.000 %/°C |
325 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.24 V | 40.37 V | 0.3% |
| Vmpp | 33.45 V | 33.45 V | 0.0% |
| Isc | 10.68 A | 10.18 A | 4.7% |
| Impp | 10.16 A | 9.73 A | 4.2% |
| TcVoc | -0.27 %/°C | -0.29 %/°C | ±0.020 %/°C |
| TcPmax | -0.36 %/°C | -0.39 %/°C | ±0.030 %/°C |
325 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.24 V | 40.4 V | 0.4% |
| Vmpp | 33.45 V | 33.5 V | 0.1% |
| Isc | 10.68 A | 10.28 A | 3.7% |
| Impp | 10.16 A | 9.71 A | 4.4% |
| TcVoc | -0.27 %/°C | -0.29 %/°C | ±0.020 %/°C |
| TcPmax | -0.36 %/°C | -0.39 %/°C | ±0.030 %/°C |
320 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.24 V | 40.25 V | 0.0% |
| Vmpp | 33.45 V | 33.21 V | 0.7% |
| Isc | 10.68 A | 10.11 A | 5.3% |
| Impp | 10.16 A | 9.64 A | 5.1% |
| TcVoc | -0.27 %/°C | -0.29 %/°C | ±0.020 %/°C |
| TcPmax | -0.36 %/°C | -0.39 %/°C | ±0.030 %/°C |
360 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.24 V | 40.6 V | 0.9% |
| Vmpp | 33.45 V | 33.8 V | 1.0% |
| Isc | 10.68 A | 11.24 A | 5.2% |
| Impp | 10.16 A | 10.66 A | 4.9% |
| TcVoc | -0.27 %/°C | -0.29 %/°C | ±0.020 %/°C |
| TcPmax | -0.36 %/°C | -0.36 %/°C | ±0.000 %/°C |
330 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.24 V | 40.49 V | 0.6% |
| Vmpp | 33.45 V | 33.74 V | 0.9% |
| Isc | 10.68 A | 10.25 A | 4.0% |
| Impp | 10.16 A | 9.79 A | 3.6% |
| TcVoc | -0.27 %/°C | -0.29 %/°C | ±0.020 %/°C |
| TcPmax | -0.36 %/°C | -0.39 %/°C | ±0.030 %/°C |
355 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.24 V | 40.98 V | 1.8% |
| Vmpp | 33.45 V | 34.38 V | 2.8% |
| Isc | 10.68 A | 10.84 A | 1.5% |
| Impp | 10.16 A | 10.33 A | 1.7% |
| TcVoc | -0.27 %/°C | -0.27 %/°C | ±0.000 %/°C |
| TcPmax | -0.36 %/°C | -0.36 %/°C | ±0.000 %/°C |
360 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.24 V | 40.6 V | 0.9% |
| Vmpp | 33.45 V | 33.8 V | 1.0% |
| Isc | 10.68 A | 11.24 A | 5.2% |
| Impp | 10.16 A | 10.66 A | 4.9% |
| TcVoc | -0.27 %/°C | -0.29 %/°C | ±0.020 %/°C |
| TcPmax | -0.36 %/°C | -0.36 %/°C | ±0.000 %/°C |
360 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.24 V | 40.6 V | 0.9% |
| Vmpp | 33.45 V | 33.8 V | 1.0% |
| Isc | 10.68 A | 11.24 A | 5.2% |
| Impp | 10.16 A | 10.66 A | 4.9% |
| TcVoc | -0.27 %/°C | -0.29 %/°C | ±0.020 %/°C |
| TcPmax | -0.36 %/°C | -0.36 %/°C | ±0.000 %/°C |
330 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.24 V | 40.6 V | 0.9% |
| Vmpp | 33.45 V | 33.7 V | 0.7% |
| Isc | 10.68 A | 10.35 A | 3.1% |
| Impp | 10.16 A | 9.8 A | 3.5% |
| TcVoc | -0.27 %/°C | -0.29 %/°C | ±0.020 %/°C |
| TcPmax | -0.36 %/°C | -0.39 %/°C | ±0.030 %/°C |
335 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.24 V | 40.65 V | 1.0% |
| Vmpp | 33.45 V | 33.98 V | 1.6% |
| Isc | 10.68 A | 10.31 A | 3.5% |
| Impp | 10.16 A | 9.87 A | 2.9% |
| TcVoc | -0.27 %/°C | -0.29 %/°C | ±0.020 %/°C |
| TcPmax | -0.36 %/°C | -0.39 %/°C | ±0.030 %/°C |
String Compatibility Calculator
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Panel Matcher
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How the Algorithm Works
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Voc
40.24 V
Vmpp
33.45 V
Isc
10.68 A
Impp
10.16 A
TcVoc
-0.27 %/°C
TcPmax
-0.36 %/°C
Pmax
340 W
Cells
120
Length
1740 mm
Width
1030 mm
Thickness
32 mm
Weight
19.9 kg
The Qcells Q.PEAK DUO-G6 340 is a 340 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 |
|---|---|---|---|
| Q.PEAK DUO-G6 345 | 345 W | 40.49 V | 10.73 A |
| Q.PEAK DUO-G6 350 | 350 W | 40.73 V | 10.79 A |
| Q.PEAK DUO-G6 355 | 355 W | 40.98 V | 10.84 A |
The most critical specs to match are: cell count (must be exactly 120), Voc close to 40.24 V (within ±5%), and temperature coefficient TcVoc close to -0.27%/°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 Qcells Q.PEAK DUO-G6 340.