585 W TOPCon solar panel with 144 cells. Voc 52.16 V · Isc 13.89 A · TcVoc -0.25%/°C.
Select the panel you want to replace
Voc
52.16 V
Vmpp
44.22 V
Isc
13.89 A
Impp
13.23 A
TcVoc
-0.25 %/°C
TcPmax
-0.29 %/°C
Pmax
585 W
Cells
144
Bifaciality
80%
The JA Solar JAM72D40-585/MB is a 585 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 |
|---|---|---|---|
| JAM72D40-580/MB | 580 W | 51.95 V | 13.84 A |
| JAM72D40-590/MB | 590 W | 52.37 V | 13.94 A |
| JAM72D40-595/MB | 595 W | 52.58 V | 13.99 A |
| JAM72D40-600/MB | 600 W | 52.79 V | 14.04 A |
| JAM72D40-605/MB | 605 W | 53 V | 14.09 A |
The most critical specs to match are: cell count (must be exactly 144), Voc close to 52.16 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 JA Solar JAM72D40-585/MB.