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All replacements

Find replacement for Ulica Solar UL-635M-144CDGN

635 W TOPCon solar panel with 144 cells. Voc 52.59 V · Isc 15.18 A · TcVoc -0.25%/°C.

Select the panel you want to replace

Show only panels with matching cell technology

Compatible Replacements

28 panels found · 4311 panels excluded

Ulica Solar UL-640M-144CDGN

640 W

TOPCon
95Exact match
ParameterOriginalReplacementDeviation
Voc52.59 V52.69 V0.2%
Vmpp44.48 V44.58 V0.2%
Isc15.18 A15.27 A0.6%
Impp14.28 A14.36 A0.6%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
JA Solar JAM72D42-635/LB

635 W

TOPCon
93Good match
ParameterOriginalReplacementDeviation
Voc52.59 V52.67 V0.2%
Vmpp44.48 V44.1 V0.9%
Isc15.18 A15.26 A0.5%
Impp14.28 A14.4 A0.8%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
JA Solar JAM72D42-630/LB

630 W

TOPCon
91Good match
ParameterOriginalReplacementDeviation
Voc52.59 V52.47 V0.2%
Vmpp44.48 V43.9 V1.3%
Isc15.18 A15.21 A0.2%
Impp14.28 A14.35 A0.5%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Sunpro Power SPDG635-N144RX10

635 W

TOPCon
91Good match
ParameterOriginalReplacementDeviation
Voc52.59 V52.65 V0.1%
Vmpp44.48 V44.07 V0.9%
Isc15.18 A15.23 A0.3%
Impp14.28 A14.41 A0.9%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.3 %/°C±0.010 %/°C
Ulica Solar UL-645M-144CDGN

645 W

TOPCon
90Good match
ParameterOriginalReplacementDeviation
Voc52.59 V52.79 V0.4%
Vmpp44.48 V44.68 V0.4%
Isc15.18 A15.35 A1.1%
Impp14.28 A14.44 A1.1%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
JA Solar JAM72D42-640/LB

640 W

TOPCon
89Good match
ParameterOriginalReplacementDeviation
Voc52.59 V52.87 V0.5%
Vmpp44.48 V44.29 V0.4%
Isc15.18 A15.31 A0.9%
Impp14.28 A14.45 A1.2%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Sunpro Power SPDG630-N144RX10

630 W

TOPCon
88Good match
ParameterOriginalReplacementDeviation
Voc52.59 V52.45 V0.3%
Vmpp44.48 V43.88 V1.3%
Isc15.18 A15.18 A0.0%
Impp14.28 A14.36 A0.6%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.3 %/°C±0.010 %/°C
Sunpro Power SPDG640-N144RX10

640 W

TOPCon
87Good match
ParameterOriginalReplacementDeviation
Voc52.59 V52.85 V0.5%
Vmpp44.48 V44.26 V0.5%
Isc15.18 A15.28 A0.7%
Impp14.28 A14.46 A1.3%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.3 %/°C±0.010 %/°C
Canadian Solar CS6.1-72TB-615

615 W

TOPCon
86Good match
ParameterOriginalReplacementDeviation
Voc52.59 V52.4 V0.4%
Vmpp44.48 V44.6 V0.3%
Isc15.18 A14.72 A3.0%
Impp14.28 A13.79 A3.4%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Ulica Solar UL-650M-144CDGN

650 W

TOPCon
85Good match
ParameterOriginalReplacementDeviation
Voc52.59 V52.9 V0.6%
Vmpp44.48 V44.77 V0.7%
Isc15.18 A15.43 A1.6%
Impp14.28 A14.52 A1.7%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
JA Solar JAM72D42-645/LB

645 W

TOPCon
85Good match
ParameterOriginalReplacementDeviation
Voc52.59 V53.07 V0.9%
Vmpp44.48 V44.49 V0.0%
Isc15.18 A15.36 A1.2%
Impp14.28 A14.5 A1.5%
TcVoc-0.25 %/°C-0.25 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
JA Solar JAM72D42-625/LB

625 W

TOPCon
84Good match
ParameterOriginalReplacementDeviation
Voc52.59 V52.27 V0.6%
Vmpp44.48 V43.71 V1.7%
Isc15.18 A15.16 A0.1%
Impp14.28 A14.3 A0.1%
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

52.59 V

Vmpp

44.48 V

Isc

15.18 A

Impp

14.28 A

TcVoc

-0.25 %/°C

TcPmax

-0.29 %/°C

Pmax

635 W

Cells

144

Bifaciality

80%

Length

2382 mm

Width

1134 mm

Thickness

30 mm

Weight

33 kg

The Ulica Solar UL-635M-144CDGN is a 635 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
UL-640M-144CDGN640 W52.69 V15.27 A
UL-645M-144CDGN645 W52.79 V15.35 A
UL-650M-144CDGN650 W52.9 V15.43 A

Frequently Asked Questions

What specs must match when replacing the Ulica Solar UL-635M-144CDGN?

The most critical specs to match are: cell count (must be exactly 144), Voc close to 52.59 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 Ulica Solar UL-635M-144CDGN?

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 Ulica Solar UL-635M-144CDGN.