385 W PERC solar panel with 120 cells. Voc 40.6 V · Isc 12.07 A · TcVoc -0.25%/°C.
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8 panels found · 3692 panels excluded
390 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.6 V | 40.69 V | 0.2% |
| Vmpp | 33.6 V | 33.88 V | 0.8% |
| Isc | 12.07 A | 12.21 A | 1.2% |
| Impp | 11.46 A | 11.52 A | 0.5% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.34 %/°C | -0.34 %/°C | ±0.000 %/°C |
380 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.6 V | 40.4 V | 0.5% |
| Vmpp | 33.6 V | 33.4 V | 0.6% |
| Isc | 12.07 A | 12 A | 0.6% |
| Impp | 11.46 A | 11.38 A | 0.7% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.34 %/°C | -0.34 %/°C | ±0.000 %/°C |
390 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.6 V | 40.8 V | 0.5% |
| Vmpp | 33.6 V | 33.8 V | 0.6% |
| Isc | 12.07 A | 12.14 A | 0.6% |
| Impp | 11.46 A | 11.54 A | 0.7% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.34 %/°C | -0.34 %/°C | ±0.000 %/°C |
395 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.6 V | 41 V | 1.0% |
| Vmpp | 33.6 V | 34 V | 1.2% |
| Isc | 12.07 A | 12.21 A | 1.2% |
| Impp | 11.46 A | 11.62 A | 1.4% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.34 %/°C | -0.34 %/°C | ±0.000 %/°C |
395 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.6 V | 41 V | 1.0% |
| Vmpp | 33.6 V | 34.14 V | 1.6% |
| Isc | 12.07 A | 12.27 A | 1.7% |
| Impp | 11.46 A | 11.58 A | 1.0% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.34 %/°C | -0.34 %/°C | ±0.000 %/°C |
400 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.6 V | 41.3 V | 1.7% |
| Vmpp | 33.6 V | 34.39 V | 2.4% |
| Isc | 12.07 A | 12.34 A | 2.2% |
| Impp | 11.46 A | 11.64 A | 1.6% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.34 %/°C | -0.34 %/°C | ±0.000 %/°C |
405 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.6 V | 41.6 V | 2.5% |
| Vmpp | 33.6 V | 34.64 V | 3.1% |
| Isc | 12.07 A | 12.4 A | 2.7% |
| Impp | 11.46 A | 11.7 A | 2.1% |
| TcVoc | -0.25 %/°C | -0.25 %/°C | ±0.000 %/°C |
| TcPmax | -0.34 %/°C | -0.34 %/°C | ±0.000 %/°C |
385 W
PERC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 40.6 V | 41.78 V | 2.9% |
| Vmpp | 33.6 V | 35.04 V | 4.3% |
| Isc | 12.07 A | 11.53 A | 4.5% |
| Impp | 11.46 A | 10.99 A | 4.1% |
| TcVoc | -0.25 %/°C | -0.27 %/°C | ±0.020 %/°C |
| TcPmax | -0.34 %/°C | -0.35 %/°C | ±0.010 %/°C |
String Compatibility Calculator
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Voc
40.6 V
Vmpp
33.6 V
Isc
12.07 A
Impp
11.46 A
TcVoc
-0.25 %/°C
TcPmax
-0.34 %/°C
Pmax
385 W
Cells
120
Length
1754 mm
Width
1096 mm
Thickness
30 mm
Weight
21 kg
The Trina Solar TSM-385 DE09.05 is a 385 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 |
|---|---|---|---|
| 380 W | 40.4 V | 12 A | |
| 390 W | 40.8 V | 12.14 A | |
| 395 W | 41 V | 12.21 A |
The most critical specs to match are: cell count (must be exactly 120), Voc close to 40.6 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 Trina Solar TSM-385 DE09.05.