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All replacements

Find replacement for JA Solar JAM66D42-580/MB

580 W TOPCon solar panel with 132 cells. Voc 48.18 V · Isc 15.21 A · TcVoc -0.25%/°C.

Select the panel you want to replace

Show only panels with matching cell technology

Compatible Replacements

41 panels found · 4298 panels excluded

Leapton Energy LP182*199-M-66-NB-580W

580 W

TOPCon
95Exact match
ParameterOriginalReplacementDeviation
Voc48.18 V48.22 V0.1%
Vmpp40.42 V40.31 V0.3%
Isc15.21 A15.22 A0.1%
Impp14.35 A14.39 A0.3%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.3 %/°C±0.010 %/°C
JA Solar JAM66D42-585/MB

585 W

TOPCon
92Good match
ParameterOriginalReplacementDeviation
Voc48.18 V48.38 V0.4%
Vmpp40.42 V40.63 V0.5%
Isc15.21 A15.26 A0.3%
Impp14.35 A14.4 A0.3%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Leapton Energy LP182*199-M-66-NB-585W

585 W

TOPCon
89Good match
ParameterOriginalReplacementDeviation
Voc48.18 V48.42 V0.5%
Vmpp40.42 V40.51 V0.2%
Isc15.21 A15.27 A0.4%
Impp14.35 A14.44 A0.6%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.3 %/°C±0.010 %/°C
JinkoSolar JKM600N-66HL4M-BDV

600 W

TOPCon
84Good match
ParameterOriginalReplacementDeviation
Voc48.18 V48.28 V0.2%
Vmpp40.42 V40.16 V0.6%
Isc15.21 A15.84 A4.1%
Impp14.35 A14.94 A4.1%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
JA Solar JAM66D42-590/MB

590 W

TOPCon
83Good match
ParameterOriginalReplacementDeviation
Voc48.18 V48.58 V0.8%
Vmpp40.42 V40.84 V1.0%
Isc15.21 A15.31 A0.7%
Impp14.35 A14.45 A0.7%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Leapton Energy LP182*199-M-66-NB-590W

590 W

TOPCon
81Good match
ParameterOriginalReplacementDeviation
Voc48.18 V48.62 V0.9%
Vmpp40.42 V40.72 V0.7%
Isc15.21 A15.32 A0.7%
Impp14.35 A14.49 A1.0%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.3 %/°C±0.010 %/°C
DAH Solar DHN-66Z20/DG(BW)-600W

600 W

TOPCon
80Good match
ParameterOriginalReplacementDeviation
Voc48.18 V47.8 V0.8%
Vmpp40.42 V40.5 V0.2%
Isc15.21 A15.76 A3.6%
Impp14.35 A14.81 A3.2%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Horay Solar HS585TC-MHD-D

585 W

TOPCon
80Good match
ParameterOriginalReplacementDeviation
Voc48.18 V48.05 V0.3%
Vmpp40.42 V40.76 V0.8%
Isc15.21 A15.29 A0.5%
Impp14.35 A14.35 A0.0%
TcVoc-0.25 %/°C-0.23 %/°C±0.020 %/°C
TcPmax-0.29 %/°C-0.28 %/°C±0.010 %/°C
DAH Solar DHN-66Z20/DG-600W

600 W

TOPCon
80Good match
ParameterOriginalReplacementDeviation
Voc48.18 V47.8 V0.8%
Vmpp40.42 V40.5 V0.2%
Isc15.21 A15.76 A3.6%
Impp14.35 A14.81 A3.2%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
DAH Solar DHN-66Z20/DG-FS(BB)-600W

600 W

TOPCon
80Good match
ParameterOriginalReplacementDeviation
Voc48.18 V47.8 V0.8%
Vmpp40.42 V40.5 V0.2%
Isc15.21 A15.76 A3.6%
Impp14.35 A14.81 A3.2%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
DAH Solar DHN-66Z20/DG-FS(BW)-600W

600 W

TOPCon
80Good match
ParameterOriginalReplacementDeviation
Voc48.18 V47.8 V0.8%
Vmpp40.42 V40.5 V0.2%
Isc15.21 A15.76 A3.6%
Impp14.35 A14.81 A3.2%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
DAH Solar DHN-66Z20/DG(BB)-600W

600 W

TOPCon
80Good match
ParameterOriginalReplacementDeviation
Voc48.18 V47.8 V0.8%
Vmpp40.42 V40.5 V0.2%
Isc15.21 A15.76 A3.6%
Impp14.35 A14.81 A3.2%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C

String Compatibility Calculator

Verify the replacement panel works with your inverter

Panel Matcher

Find all compatible panels for a specific inverter

Already have panels?

Find an inverter that fits your panel array with the right MPPT range and DC/AC ratio.

How the Algorithm Works

Learn how panels are scored and matched

Original Panel Specs

Voc

48.18 V

Vmpp

40.42 V

Isc

15.21 A

Impp

14.35 A

TcVoc

-0.25 %/°C

TcPmax

-0.29 %/°C

Pmax

580 W

Cells

132

Bifaciality

80%

Length

2278 mm

Width

1134 mm

Thickness

30 mm

Weight

31.8 kg

The JA Solar JAM66D42-580/MB is a 580 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.

Other models in this series

ModelPowerVocIsc
JAM66D42-585/MB585 W48.38 V15.26 A
JAM66D42-590/MB590 W48.58 V15.31 A
JAM66D42-595/MB595 W48.78 V15.36 A
JAM66D42-600/MB600 W48.98 V15.41 A
JAM66D42-605/MB605 W49.19 V15.46 A

Frequently Asked Questions

What specs must match when replacing the JA Solar JAM66D42-580/MB?

The most critical specs to match are: cell count (must be exactly 132), Voc close to 48.18 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.

Can I use a higher wattage replacement for the JA Solar JAM66D42-580/MB?

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.

What happens if the replacement panel has different voltage specs?

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 JAM66D42-580/MB.