620 W TOPCon solar panel with 156 cells. Voc 55.6 V · Isc 14.08 A · TcVoc -0.25%/°C.
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65 panels found · 4274 panels excluded
620 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 55.6 V | 55.6 V | 0.0% |
| Vmpp | 46.8 V | 46.8 V | 0.0% |
| Isc | 14.08 A | 14.08 A | 0.0% |
| Impp | 13.25 A | 13.25 A | 0.0% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
620 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 55.6 V | 55.6 V | 0.0% |
| Vmpp | 46.8 V | 46.8 V | 0.0% |
| Isc | 14.08 A | 14.08 A | 0.0% |
| Impp | 13.25 A | 13.25 A | 0.0% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
625 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 55.6 V | 55.8 V | 0.4% |
| Vmpp | 46.8 V | 47 V | 0.4% |
| Isc | 14.08 A | 14.14 A | 0.4% |
| Impp | 13.25 A | 13.3 A | 0.4% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
620 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 55.6 V | 55.83 V | 0.4% |
| Vmpp | 46.8 V | 46.67 V | 0.3% |
| Isc | 14.08 A | 14.16 A | 0.6% |
| Impp | 13.25 A | 13.3 A | 0.4% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
625 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 55.6 V | 56.01 V | 0.7% |
| Vmpp | 46.8 V | 46.82 V | 0.0% |
| Isc | 14.08 A | 14.22 A | 1.0% |
| Impp | 13.25 A | 13.36 A | 0.8% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
625 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 55.6 V | 55.7 V | 0.2% |
| Vmpp | 46.8 V | 46.3 V | 1.1% |
| Isc | 14.08 A | 14.26 A | 1.3% |
| Impp | 13.25 A | 13.5 A | 1.9% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.3 %/°C | ±0.010 %/°C |
620 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 55.6 V | 55.5 V | 0.2% |
| Vmpp | 46.8 V | 46.1 V | 1.5% |
| Isc | 14.08 A | 14.21 A | 0.9% |
| Impp | 13.25 A | 13.45 A | 1.5% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.3 %/°C | ±0.010 %/°C |
630 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 55.6 V | 56 V | 0.7% |
| Vmpp | 46.8 V | 47.2 V | 0.9% |
| Isc | 14.08 A | 14.2 A | 0.9% |
| Impp | 13.25 A | 13.35 A | 0.8% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
625 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 55.6 V | 56.24 V | 1.2% |
| Vmpp | 46.8 V | 46.93 V | 0.3% |
| Isc | 14.08 A | 14.01 A | 0.5% |
| Impp | 13.25 A | 13.32 A | 0.5% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
630 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 55.6 V | 55.9 V | 0.5% |
| Vmpp | 46.8 V | 46.5 V | 0.6% |
| Isc | 14.08 A | 14.31 A | 1.6% |
| Impp | 13.25 A | 13.55 A | 2.3% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.3 %/°C | ±0.010 %/°C |
625 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 55.6 V | 55.74 V | 0.3% |
| Vmpp | 46.8 V | 46.09 V | 1.5% |
| Isc | 14.08 A | 14.27 A | 1.3% |
| Impp | 13.25 A | 13.56 A | 2.3% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.3 %/°C | ±0.010 %/°C |
625 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 55.6 V | 56.22 V | 1.1% |
| Vmpp | 46.8 V | 47.04 V | 0.5% |
| Isc | 14.08 A | 14.01 A | 0.5% |
| Impp | 13.25 A | 13.29 A | 0.3% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
String Compatibility Calculator
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Panel Matcher
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How the Algorithm Works
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Voc
55.6 V
Vmpp
46.8 V
Isc
14.08 A
Impp
13.25 A
TcVoc
-0.25 %/°C
TcPmax
-0.29 %/°C
Pmax
620 W
Cells
156
Bifaciality
80%
Length
2465 mm
Width
1134 mm
Thickness
35 mm
Weight
29.5 kg
The DAH Solar DHN-78X16-620W is a 620 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.
The most critical specs to match are: cell count (must be exactly 156), Voc close to 55.6 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 DAH Solar DHN-78X16-620W.