Find replacement for Sun Earth DXM10-66HBG 640W

640 W TOPCon solar panel with 132 cells. Voc 50.1 V · Isc 15.87 A · TcVoc -0.23%/°C.

Original Panel

Select the panel you want to replace

Same technology onlyShow only panels with matching cell technology

Compatible Replacements

195 panels found · 4144 panels excluded

Sun Earth DXM10-66HBG 630W

630 W

TOPCon

85Good match

Parameter	Original	Replacement	Deviation
Voc	50.1 V	49.7 V	0.8%
Vmpp	42.7 V	42.3 V	0.9%
Isc	15.87 A	15.81 A	0.4%
Impp	14.99 A	14.9 A	0.6%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Sun Earth DXM10-66HBG 650W

650 W

TOPCon

85Good match

Parameter	Original	Replacement	Deviation
Voc	50.1 V	50.5 V	0.8%
Vmpp	42.7 V	43.1 V	0.9%
Isc	15.87 A	15.93 A	0.4%
Impp	14.99 A	15.09 A	0.7%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

AE Solar CMER-132BDS-630

630 W

TOPCon

83Good match

Parameter	Original	Replacement	Deviation
Voc	50.1 V	50.2 V	0.2%
Vmpp	42.7 V	42 V	1.6%
Isc	15.87 A	16.09 A	1.4%
Impp	14.99 A	15 A	0.1%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Horay Solar HS635TC-MHC-D

635 W

TOPCon

83Good match

Parameter	Original	Replacement	Deviation
Voc	50.1 V	50.11 V	0.0%
Vmpp	42.7 V	41.65 V	2.5%
Isc	15.87 A	16.1 A	1.4%
Impp	14.99 A	15.25 A	1.7%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Phono Solar PS630L8GF-22/WNH

630 W

TOPCon

80Good match

Parameter	Original	Replacement	Deviation
Voc	50.1 V	50.04 V	0.1%
Vmpp	42.7 V	42.12 V	1.4%
Isc	15.87 A	15.64 A	1.4%
Impp	14.99 A	14.96 A	0.2%
TcVoc	-0.23 %/°C	-0.25 %/°C	±0.020 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

AE Solar CMER-132BDS-625

625 W

TOPCon

78Acceptable

Parameter	Original	Replacement	Deviation
Voc	50.1 V	49.9 V	0.4%
Vmpp	42.7 V	41.7 V	2.3%
Isc	15.87 A	16.06 A	1.2%
Impp	14.99 A	14.99 A	0.0%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Horay Solar HS640TC-MHC-D

640 W

TOPCon

78Acceptable

Parameter	Original	Replacement	Deviation
Voc	50.1 V	50.35 V	0.5%
Vmpp	42.7 V	41.84 V	2.0%
Isc	15.87 A	16.15 A	1.8%
Impp	14.99 A	15.29 A	2.0%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Yingli Solar YL645CF66 i/2

645 W

TOPCon

76Acceptable

Parameter	Original	Replacement	Deviation
Voc	50.1 V	49.98 V	0.2%
Vmpp	42.7 V	41.96 V	1.7%
Isc	15.87 A	16.39 A	3.3%
Impp	14.99 A	15.37 A	2.5%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Horay Solar HS630TC-MHC-D

630 W

TOPCon

76Acceptable

Parameter	Original	Replacement	Deviation
Voc	50.1 V	49.87 V	0.5%
Vmpp	42.7 V	41.45 V	2.9%
Isc	15.87 A	16.05 A	1.1%
Impp	14.99 A	15.2 A	1.4%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Tongwei TWMNH-66HD655

655 W

TOPCon

71Acceptable

Parameter	Original	Replacement	Deviation
Voc	50.1 V	50.15 V	0.1%
Vmpp	42.7 V	41.78 V	2.2%
Isc	15.87 A	16.52 A	4.1%
Impp	14.99 A	15.68 A	4.6%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Yingli Solar YL640CF66 i/2

640 W

TOPCon

71Acceptable

Parameter	Original	Replacement	Deviation
Voc	50.1 V	49.8 V	0.6%
Vmpp	42.7 V	41.8 V	2.1%
Isc	15.87 A	16.32 A	2.8%
Impp	14.99 A	15.31 A	2.1%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Suntech STP645S-H66-Nsh+

645 W

TOPCon

71Acceptable

Parameter	Original	Replacement	Deviation
Voc	50.1 V	50.1 V	0.0%
Vmpp	42.7 V	41.64 V	2.5%
Isc	15.87 A	16.37 A	3.2%
Impp	14.99 A	15.49 A	3.3%
TcVoc	-0.23 %/°C	-0.25 %/°C	±0.020 %/°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

50.1 V

Vmpp

42.7 V

Isc

15.87 A

Impp

14.99 A

TcVoc

-0.23 %/°C

TcPmax

-0.29 %/°C

Pmax

640 W

Cells

132

Bifaciality

80%

Length

2382 mm

Width

1134 mm

Thickness

30 mm

Weight

33 kg

The Sun Earth DXM10-66HBG 640W is a 640 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

Model	Power	Voc	Isc
DXM10-66HBG 600W	600 W	48.5 V	15.64 A
DXM10-66HBG 610W	610 W	48.9 V	15.7 A
DXM10-66HBG 620W	620 W	49.3 V	15.76 A
DXM10-66HBG 630W	630 W	49.7 V	15.81 A
DXM10-66HBG 650W	650 W	50.5 V	15.93 A

Frequently Asked Questions

What specs must match when replacing the Sun Earth DXM10-66HBG 640W?

The most critical specs to match are: cell count (must be exactly 132), Voc close to 50.1 V (within ±5%), and temperature coefficient TcVoc close to -0.23%/°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 Sun Earth DXM10-66HBG 640W?

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 Sun Earth DXM10-66HBG 640W.

All replacements

Find replacement for Sun Earth DXM10-66HBG 640W

640 W TOPCon solar panel with 132 cells. Voc 50.1 V · Isc 15.87 A · TcVoc -0.23%/°C.

Original Panel

Select the panel you want to replace

Same technology onlyShow only panels with matching cell technology

Compatible Replacements

195 panels found · 4144 panels excluded

Sun Earth DXM10-66HBG 630W

630 W

TOPCon

85Good match

Parameter	Original	Replacement	Deviation
Voc	50.1 V	49.7 V	0.8%
Vmpp	42.7 V	42.3 V	0.9%
Isc	15.87 A	15.81 A	0.4%
Impp	14.99 A	14.9 A	0.6%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Sun Earth DXM10-66HBG 650W

650 W

TOPCon

85Good match

Parameter	Original	Replacement	Deviation
Voc	50.1 V	50.5 V	0.8%
Vmpp	42.7 V	43.1 V	0.9%
Isc	15.87 A	15.93 A	0.4%
Impp	14.99 A	15.09 A	0.7%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

AE Solar CMER-132BDS-630

630 W

TOPCon

83Good match

Parameter	Original	Replacement	Deviation
Voc	50.1 V	50.2 V	0.2%
Vmpp	42.7 V	42 V	1.6%
Isc	15.87 A	16.09 A	1.4%
Impp	14.99 A	15 A	0.1%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Horay Solar HS635TC-MHC-D

635 W

TOPCon

83Good match

Parameter	Original	Replacement	Deviation
Voc	50.1 V	50.11 V	0.0%
Vmpp	42.7 V	41.65 V	2.5%
Isc	15.87 A	16.1 A	1.4%
Impp	14.99 A	15.25 A	1.7%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Phono Solar PS630L8GF-22/WNH

630 W

TOPCon

80Good match

Parameter	Original	Replacement	Deviation
Voc	50.1 V	50.04 V	0.1%
Vmpp	42.7 V	42.12 V	1.4%
Isc	15.87 A	15.64 A	1.4%
Impp	14.99 A	14.96 A	0.2%
TcVoc	-0.23 %/°C	-0.25 %/°C	±0.020 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

AE Solar CMER-132BDS-625

625 W

TOPCon

78Acceptable

Parameter	Original	Replacement	Deviation
Voc	50.1 V	49.9 V	0.4%
Vmpp	42.7 V	41.7 V	2.3%
Isc	15.87 A	16.06 A	1.2%
Impp	14.99 A	14.99 A	0.0%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Horay Solar HS640TC-MHC-D

640 W

TOPCon

78Acceptable

Parameter	Original	Replacement	Deviation
Voc	50.1 V	50.35 V	0.5%
Vmpp	42.7 V	41.84 V	2.0%
Isc	15.87 A	16.15 A	1.8%
Impp	14.99 A	15.29 A	2.0%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Yingli Solar YL645CF66 i/2

645 W

TOPCon

76Acceptable

Parameter	Original	Replacement	Deviation
Voc	50.1 V	49.98 V	0.2%
Vmpp	42.7 V	41.96 V	1.7%
Isc	15.87 A	16.39 A	3.3%
Impp	14.99 A	15.37 A	2.5%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Horay Solar HS630TC-MHC-D

630 W

TOPCon

76Acceptable

Parameter	Original	Replacement	Deviation
Voc	50.1 V	49.87 V	0.5%
Vmpp	42.7 V	41.45 V	2.9%
Isc	15.87 A	16.05 A	1.1%
Impp	14.99 A	15.2 A	1.4%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Tongwei TWMNH-66HD655

655 W

TOPCon

71Acceptable

Parameter	Original	Replacement	Deviation
Voc	50.1 V	50.15 V	0.1%
Vmpp	42.7 V	41.78 V	2.2%
Isc	15.87 A	16.52 A	4.1%
Impp	14.99 A	15.68 A	4.6%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Yingli Solar YL640CF66 i/2

640 W

TOPCon

71Acceptable

Parameter	Original	Replacement	Deviation
Voc	50.1 V	49.8 V	0.6%
Vmpp	42.7 V	41.8 V	2.1%
Isc	15.87 A	16.32 A	2.8%
Impp	14.99 A	15.31 A	2.1%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Suntech STP645S-H66-Nsh+

645 W

TOPCon

71Acceptable

Parameter	Original	Replacement	Deviation
Voc	50.1 V	50.1 V	0.0%
Vmpp	42.7 V	41.64 V	2.5%
Isc	15.87 A	16.37 A	3.2%
Impp	14.99 A	15.49 A	3.3%
TcVoc	-0.23 %/°C	-0.25 %/°C	±0.020 %/°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

50.1 V

Vmpp

42.7 V

Isc

15.87 A

Impp

14.99 A

TcVoc

-0.23 %/°C

TcPmax

-0.29 %/°C

Pmax

640 W

Cells

132

Bifaciality

80%

Length

2382 mm

Width

1134 mm

Thickness

30 mm

Weight

33 kg

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

Model	Power	Voc	Isc
DXM10-66HBG 600W	600 W	48.5 V	15.64 A
DXM10-66HBG 610W	610 W	48.9 V	15.7 A
DXM10-66HBG 620W	620 W	49.3 V	15.76 A
DXM10-66HBG 630W	630 W	49.7 V	15.81 A
DXM10-66HBG 650W	650 W	50.5 V	15.93 A