475 W TOPCon solar panel with 144 cells. Voc 36.42 V · Isc 16.48 A · TcVoc -0.22%/°C.
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11 of the 4,444 panels in the catalogue can replace JA Solar JAM48D51-475/LR. Before you buy, check your pick in the string calculator with your inverter.
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Small differences within tolerance — safe once verified in the calculator with your inverter.
Match 80–94 % · 11 models
String Compatibility Calculator
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Panel Matcher
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How the Algorithm Works
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Voc
36.42 V
Vmpp
30.26 V
Isc
16.48 A
Impp
15.7 A
TcVoc
-0.22 %/°C
TcPmax
-0.26 %/°C
Pmax
475 W
Cells
144
Length
1762 mm
Width
1134 mm
Thickness
30 mm
Weight
21.5 kg
The JA Solar JAM48D51-475/LR is a 475 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 |
|---|---|---|---|
| JAM48D51-460/LR | 460 W | 36.21 V | 16.33 A |
| JAM48D51-465/LR | 465 W | 36.28 V | 16.38 A |
| JAM48D51-470/LR | 470 W | 36.35 V | 16.43 A |
| JAM48D51-480/LR | 480 W | 36.48 V | 16.53 A |
| JAM48D51-485/LR | 485 W | 36.55 V | 16.58 A |
The most critical specs to match are: cell count (must be exactly 144), Voc close to 36.42 V (within ±5%), and temperature coefficient TcVoc close to -0.22%/°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 JAM48D51-475/LR.