505 W HPBC solar panel with 108 cells. Voc 41.55 V · Isc 15.37 A · TcVoc -0.21%/°C.
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91 panels found · 4248 panels excluded
510 W
HIBC (HJT)| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 41.55 V | 41.55 V | 0.0% |
| Vmpp | 34.37 V | 34.37 V | 0.0% |
| Isc | 15.37 A | 15.52 A | 1.0% |
| Impp | 14.69 A | 14.84 A | 1.0% |
| TcVoc | -0.21 %/°C | -0.21 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
505 W
HIBC (HJT)| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 41.55 V | 41.45 V | 0.2% |
| Vmpp | 34.37 V | 34.27 V | 0.3% |
| Isc | 15.37 A | 15.41 A | 0.3% |
| Impp | 14.69 A | 14.74 A | 0.3% |
| TcVoc | -0.21 %/°C | -0.21 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
500 W
HPBC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 41.55 V | 41.45 V | 0.2% |
| Vmpp | 34.37 V | 34.27 V | 0.3% |
| Isc | 15.37 A | 15.26 A | 0.7% |
| Impp | 14.69 A | 14.59 A | 0.7% |
| TcVoc | -0.21 %/°C | -0.21 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
500 W
HIBC (HJT)| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 41.55 V | 41.35 V | 0.5% |
| Vmpp | 34.37 V | 34.17 V | 0.6% |
| Isc | 15.37 A | 15.3 A | 0.5% |
| Impp | 14.69 A | 14.63 A | 0.4% |
| TcVoc | -0.21 %/°C | -0.21 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
495 W
HPBC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 41.55 V | 41.35 V | 0.5% |
| Vmpp | 34.37 V | 34.17 V | 0.6% |
| Isc | 15.37 A | 15.15 A | 1.4% |
| Impp | 14.69 A | 14.49 A | 1.4% |
| TcVoc | -0.21 %/°C | -0.21 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
495 W
HIBC (HJT)| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 41.55 V | 41.25 V | 0.7% |
| Vmpp | 34.37 V | 34.07 V | 0.9% |
| Isc | 15.37 A | 15.19 A | 1.2% |
| Impp | 14.69 A | 14.53 A | 1.1% |
| TcVoc | -0.21 %/°C | -0.21 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
490 W
HPBC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 41.55 V | 41.25 V | 0.7% |
| Vmpp | 34.37 V | 34.07 V | 0.9% |
| Isc | 15.37 A | 15.04 A | 2.1% |
| Impp | 14.69 A | 14.38 A | 2.1% |
| TcVoc | -0.21 %/°C | -0.21 %/°C | ±0.000 %/°C |
| TcPmax | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
510 W
ABC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 41.55 V | 41.11 V | 1.1% |
| Vmpp | 34.37 V | 34.57 V | 0.6% |
| Isc | 15.37 A | 15.52 A | 1.0% |
| Impp | 14.69 A | 14.76 A | 0.5% |
| TcVoc | -0.21 %/°C | -0.22 %/°C | ±0.010 %/°C |
| TcPmax | -0.24 %/°C | -0.26 %/°C | ±0.020 %/°C |
505 W
ABC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 41.55 V | 40.96 V | 1.4% |
| Vmpp | 34.37 V | 34.47 V | 0.3% |
| Isc | 15.37 A | 15.45 A | 0.5% |
| Impp | 14.69 A | 14.66 A | 0.2% |
| TcVoc | -0.21 %/°C | -0.22 %/°C | ±0.010 %/°C |
| TcPmax | -0.24 %/°C | -0.26 %/°C | ±0.020 %/°C |
505 W
ABC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 41.55 V | 40.96 V | 1.4% |
| Vmpp | 34.37 V | 34.47 V | 0.3% |
| Isc | 15.37 A | 15.45 A | 0.5% |
| Impp | 14.69 A | 14.66 A | 0.2% |
| TcVoc | -0.21 %/°C | -0.22 %/°C | ±0.010 %/°C |
| TcPmax | -0.24 %/°C | -0.26 %/°C | ±0.020 %/°C |
500 W
ABC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 41.55 V | 41.3 V | 0.6% |
| Vmpp | 34.37 V | 34.9 V | 1.5% |
| Isc | 15.37 A | 14.96 A | 2.7% |
| Impp | 14.69 A | 14.33 A | 2.5% |
| TcVoc | -0.21 %/°C | -0.22 %/°C | ±0.010 %/°C |
| TcPmax | -0.24 %/°C | -0.26 %/°C | ±0.020 %/°C |
495 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 41.55 V | 41.52 V | 0.1% |
| Vmpp | 34.37 V | 34.23 V | 0.4% |
| Isc | 15.37 A | 15.37 A | 0.0% |
| Impp | 14.69 A | 14.47 A | 1.5% |
| TcVoc | -0.21 %/°C | -0.25 %/°C | ±0.040 %/°C |
| TcPmax | -0.24 %/°C | -0.3 %/°C | ±0.060 %/°C |
String Compatibility Calculator
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How the Algorithm Works
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Voc
41.55 V
Vmpp
34.37 V
Isc
15.37 A
Impp
14.69 A
TcVoc
-0.21 %/°C
TcPmax
-0.24 %/°C
Pmax
505 W
Cells
108
Length
1800 mm
Width
1134 mm
Thickness
30 mm
Weight
23.5 kg
The LONGi LR7-54HJBB-505M is a 505 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 |
|---|---|---|---|
| LR7-54HJBB-490M | 490 W | 41.25 V | 15.04 A |
| LR7-54HJBB-495M | 495 W | 41.35 V | 15.15 A |
| LR7-54HJBB-500M | 500 W | 41.45 V | 15.26 A |
The most critical specs to match are: cell count (must be exactly 108), Voc close to 41.55 V (within ±5%), and temperature coefficient TcVoc close to -0.21%/°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 LONGi LR7-54HJBB-505M.