470 W TOPCon solar panel with 108 cells. Voc 40.4 V · Isc 14.66 A · TcVoc -0.25%/°C.
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120 panels found · 4219 panels excluded
465 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.4 V | 40.2 V | 0.5% |
| Vmpp | 33.84 V | 33.5 V | 1.0% |
| Isc | 14.66 A | 14.65 A | 0.1% |
| Impp | 13.89 A | 13.88 A | 0.1% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
460 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.4 V | 40.6 V | 0.5% |
| Vmpp | 33.84 V | 33.68 V | 0.5% |
| Isc | 14.66 A | 14.43 A | 1.6% |
| Impp | 13.89 A | 13.66 A | 1.7% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
455 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.4 V | 40.5 V | 0.2% |
| Vmpp | 33.84 V | 33.33 V | 1.5% |
| Isc | 14.66 A | 14.42 A | 1.6% |
| Impp | 13.89 A | 13.65 A | 1.7% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
485 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.4 V | 40.4 V | 0.0% |
| Vmpp | 33.84 V | 33.4 V | 1.3% |
| Isc | 14.66 A | 15.23 A | 3.9% |
| Impp | 13.89 A | 14.53 A | 4.6% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
465 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.4 V | 40.7 V | 0.7% |
| Vmpp | 33.84 V | 34.02 V | 0.5% |
| Isc | 14.66 A | 14.44 A | 1.5% |
| Impp | 13.89 A | 13.67 A | 1.6% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
460 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.4 V | 40.17 V | 0.6% |
| Vmpp | 33.84 V | 33.6 V | 0.7% |
| Isc | 14.66 A | 14.14 A | 3.5% |
| Impp | 13.89 A | 13.69 A | 1.4% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
465 W
HPBC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.4 V | 40.23 V | 0.4% |
| Vmpp | 33.84 V | 33.74 V | 0.3% |
| Isc | 14.66 A | 14.61 A | 0.3% |
| Impp | 13.89 A | 13.8 A | 0.6% |
| TcVoc | -0.25 %/°C | -0.23 %/°C | ±0.020 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
450 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.4 V | 40.3 V | 0.2% |
| Vmpp | 33.84 V | 32.99 V | 2.5% |
| Isc | 14.66 A | 14.41 A | 1.7% |
| Impp | 13.89 A | 13.64 A | 1.8% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
480 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.4 V | 40.29 V | 0.3% |
| Vmpp | 33.84 V | 33.28 V | 1.7% |
| Isc | 14.66 A | 15.13 A | 3.2% |
| Impp | 13.89 A | 14.43 A | 3.9% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.4 V | 40.04 V | 0.9% |
| Vmpp | 33.84 V | 33.43 V | 1.2% |
| Isc | 14.66 A | 14.87 A | 1.4% |
| Impp | 13.89 A | 14.07 A | 1.3% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
490 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.4 V | 40.52 V | 0.3% |
| Vmpp | 33.84 V | 33.51 V | 1.0% |
| Isc | 14.66 A | 15.33 A | 4.6% |
| Impp | 13.89 A | 14.63 A | 5.3% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.29 %/°C | -0.29 %/°C | ±0.000 %/°C |
455 W
HPBC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.4 V | 40.13 V | 0.7% |
| Vmpp | 33.84 V | 33.84 V | 0.0% |
| Isc | 14.66 A | 14.52 A | 1.0% |
| Impp | 13.89 A | 13.45 A | 3.2% |
| TcVoc | -0.25 %/°C | -0.23 %/°C | ±0.020 %/°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
40.4 V
Vmpp
33.84 V
Isc
14.66 A
Impp
13.89 A
TcVoc
-0.25 %/°C
TcPmax
-0.29 %/°C
Pmax
470 W
Cells
108
Length
1762 mm
Width
1134 mm
Thickness
30 mm
Weight
22 kg
The JA Solar JAM54D40-470/LR is a 470 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 |
|---|---|---|---|
| JAM54D40-445/LR | 445 W | 39.1 V | 14.4 A |
| JAM54D40-450/LR | 450 W | 39.3 V | 14.48 A |
| JAM54D40-455/LR | 455 W | 39.5 V | 14.56 A |
| JAM54D40-460/LR | 460 W | 39.7 V | 14.64 A |
| JAM54D40-465/LR | 465 W | 40.2 V | 14.65 A |
The most critical specs to match are: cell count (must be exactly 108), Voc close to 40.4 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 JAM54D40-470/LR.