445 W IBC solar panel with 112 cells. Voc 83 V · Isc 6.6 A · TcVoc -0.236%/°C.
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2 panels found · 3509 panels excluded
440 W
IBC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 83 V | 83 V | 0.0% |
| Vmpp | 71.4 V | 71 V | 0.6% |
| Isc | 6.6 A | 6.59 A | 0.2% |
| Impp | 6.23 A | 6.2 A | 0.5% |
| TcVoc | -0.236 %/°C | -0.236 %/°C | ±0.000 %/°C |
| TcPmax | -0.27 %/°C | -0.27 %/°C | ±0.000 %/°C |
435 W
IBC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 83 V | 82.9 V | 0.1% |
| Vmpp | 71.4 V | 70.6 V | 1.1% |
| Isc | 6.6 A | 6.58 A | 0.3% |
| Impp | 6.23 A | 6.16 A | 1.1% |
| TcVoc | -0.236 %/°C | -0.236 %/°C | ±0.000 %/°C |
| TcPmax | -0.27 %/°C | -0.27 %/°C | ±0.000 %/°C |
String Compatibility Calculator
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Voc
83 V
Vmpp
71.4 V
Isc
6.6 A
Impp
6.23 A
TcVoc
-0.236 %/°C
TcPmax
-0.27 %/°C
Pmax
445 W
Cells
112
Length
1787 mm
Width
1035 mm
Thickness
40 mm
Weight
20.7 kg
The Maxeon SPR-MAX7-445-PT is a 445 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 |
|---|---|---|---|
| 435 W | 82.9 V | 6.58 A | |
| 440 W | 83 V | 6.59 A |
The most critical specs to match are: cell count (must be exactly 112), Voc close to 83 V (within ±5%), and temperature coefficient TcVoc close to -0.236%/°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 Maxeon SPR-MAX7-445-PT.