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All replacements

Find replacement for Trina Solar TSM-NEG18RC.27-505

505 W TOPCon solar panel with 108 cells. Voc 40.3 V · Isc 15.89 A · TcVoc -0.24%/°C.

Select the panel you want to replace

Show only panels with matching cell technology

Compatible Replacements

216 panels found · 4123 panels excluded

Sonnex SNX-D54HND505M(R4)

505 W

TOPCon
92Good match
ParameterOriginalReplacementDeviation
Voc40.3 V40.4 V0.2%
Vmpp33.5 V33.5 V0.0%
Isc15.89 A15.89 A0.0%
Impp15.09 A15.08 A0.1%
TcVoc-0.24 %/°C-0.25 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Seraphim SRP-505-BTD-BG

505 W

TOPCon
92Good match
ParameterOriginalReplacementDeviation
Voc40.3 V40.23 V0.2%
Vmpp33.5 V33.51 V0.0%
Isc15.89 A15.93 A0.3%
Impp15.09 A15.07 A0.1%
TcVoc-0.24 %/°C-0.25 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Trina Solar TSM-NEG18RC.27-500

500 W

TOPCon
91Good match
ParameterOriginalReplacementDeviation
Voc40.3 V40.1 V0.5%
Vmpp33.5 V33.3 V0.6%
Isc15.89 A15.86 A0.2%
Impp15.09 A15.03 A0.4%
TcVoc-0.24 %/°C-0.24 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Luxor Solar LX-500M/182R-108+ GG BW ECOLINE

500 W

TOPCon
91Good match
ParameterOriginalReplacementDeviation
Voc40.3 V40.29 V0.0%
Vmpp33.5 V33.28 V0.7%
Isc15.89 A15.89 A0.0%
Impp15.09 A15.03 A0.4%
TcVoc-0.24 %/°C-0.25 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Horay Solar HS505TC-MHC-D

505 W

TOPCon
90Good match
ParameterOriginalReplacementDeviation
Voc40.3 V40.35 V0.1%
Vmpp33.5 V33.53 V0.1%
Isc15.89 A15.9 A0.1%
Impp15.09 A15.06 A0.2%
TcVoc-0.24 %/°C-0.23 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.28 %/°C±0.010 %/°C
Sunpro Power SPDG505-N108R12

505 W

TOPCon
89Good match
ParameterOriginalReplacementDeviation
Voc40.3 V40.24 V0.1%
Vmpp33.5 V33.6 V0.3%
Isc15.89 A15.88 A0.1%
Impp15.09 A15.03 A0.4%
TcVoc-0.24 %/°C-0.25 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.3 %/°C±0.010 %/°C
Perlight Solar PLM-505DH8NH-108 BLK Transparent

505 W

TOPCon
89Good match
ParameterOriginalReplacementDeviation
Voc40.3 V40.24 V0.1%
Vmpp33.5 V33.94 V1.3%
Isc15.89 A15.92 A0.2%
Impp15.09 A14.88 A1.4%
TcVoc-0.24 %/°C-0.24 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.28 %/°C±0.010 %/°C
Tongwei TWMNH-54HD505

505 W

TOPCon
89Good match
ParameterOriginalReplacementDeviation
Voc40.3 V40.24 V0.1%
Vmpp33.5 V33.94 V1.3%
Isc15.89 A15.92 A0.2%
Impp15.09 A14.88 A1.4%
TcVoc-0.24 %/°C-0.24 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.28 %/°C±0.010 %/°C
Luxor Solar LX-505M/182R-108+ GG BW ECOLINE

505 W

TOPCon
88Good match
ParameterOriginalReplacementDeviation
Voc40.3 V40.48 V0.4%
Vmpp33.5 V33.44 V0.2%
Isc15.89 A15.97 A0.5%
Impp15.09 A15.11 A0.1%
TcVoc-0.24 %/°C-0.25 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Risen RSM108-11-505BNDG

505 W

TOPCon
88Good match
ParameterOriginalReplacementDeviation
Voc40.3 V40.22 V0.2%
Vmpp33.5 V33.25 V0.7%
Isc15.89 A15.95 A0.4%
Impp15.09 A15.19 A0.7%
TcVoc-0.24 %/°C-0.25 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Risen RSM108-11-510BNDG

510 W

TOPCon
88Good match
ParameterOriginalReplacementDeviation
Voc40.3 V40.42 V0.3%
Vmpp33.5 V33.45 V0.1%
Isc15.89 A16.02 A0.8%
Impp15.09 A15.25 A1.1%
TcVoc-0.24 %/°C-0.25 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Seraphim SRP-510-BTD-BG

510 W

TOPCon
87Good match
ParameterOriginalReplacementDeviation
Voc40.3 V40.43 V0.3%
Vmpp33.5 V33.71 V0.6%
Isc15.89 A15.98 A0.6%
Impp15.09 A15.13 A0.3%
TcVoc-0.24 %/°C-0.25 %/°C±0.010 %/°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

40.3 V

Vmpp

33.5 V

Isc

15.89 A

Impp

15.09 A

TcVoc

-0.24 %/°C

TcPmax

-0.29 %/°C

Pmax

505 W

Cells

108

Bifaciality

80%

Length

1961 mm

Width

1134 mm

Thickness

30 mm

Weight

23.5 kg

The Trina Solar TSM-NEG18RC.27-505 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.

Other models in this series

ModelPowerVocIsc
TSM-NEG18RC.27-495495 W39.8 V15.83 A
TSM-NEG18RC.27-500500 W40.1 V15.86 A
TSM-NEG18RC.27-510510 W40.6 V15.93 A
TSM-NEG18RC.27-515515 W40.9 V15.96 A
TSM-NEG18RC.27-520520 W41.2 V15.99 A

Frequently Asked Questions

What specs must match when replacing the Trina Solar TSM-NEG18RC.27-505?

The most critical specs to match are: cell count (must be exactly 108), Voc close to 40.3 V (within ±5%), and temperature coefficient TcVoc close to -0.24%/°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 Trina Solar TSM-NEG18RC.27-505?

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 Trina Solar TSM-NEG18RC.27-505.