Find replacement for JA Solar JAM66D45-635/LB

635 W TOPCon solar panel with 132 cells. Voc 49.1 V · Isc 16.21 A · TcVoc -0.25%/°C.

Original Panel

Select the panel you want to replace

Same technology onlyShow only panels with matching cell technology

Compatible Replacements

193 panels found · 4146 panels excluded

DMEGC DM620G12RT-B66HSW

620 W

TOPCon

96Exact match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.09 V	0.0%
Vmpp	40.94 V	40.85 V	0.2%
Isc	16.21 A	16.11 A	0.6%
Impp	15.51 A	15.2 A	2.0%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DMEGC GH620G12RT-B66HST

620 W

TOPCon

96Exact match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.09 V	0.0%
Vmpp	40.94 V	40.85 V	0.2%
Isc	16.21 A	16.11 A	0.6%
Impp	15.51 A	15.2 A	2.0%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Ulica Solar UL-640M-132DDGB

640 W

IBC

95Exact match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.11 V	0.0%
Vmpp	40.94 V	41.18 V	0.6%
Isc	16.21 A	16.41 A	1.2%
Impp	15.51 A	15.54 A	0.2%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Risen RSM132-11-620BNDG

620 W

TOPCon

95Exact match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.08 V	0.0%
Vmpp	40.94 V	40.81 V	0.3%
Isc	16.21 A	16.04 A	1.0%
Impp	15.51 A	15.2 A	2.0%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

JinkoSolar JKM620N-66HL4M-BDV

620 W

TOPCon

94Good match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.08 V	0.0%
Vmpp	40.94 V	40.74 V	0.5%
Isc	16.21 A	16.08 A	0.8%
Impp	15.51 A	15.22 A	1.9%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Seraphim SRP-615-BTC-BG

615 W

TOPCon

94Good match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.12 V	0.0%
Vmpp	40.94 V	40.91 V	0.1%
Isc	16.21 A	15.92 A	1.8%
Impp	15.51 A	15.04 A	3.0%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

JinkoSolar JKM625N-66HL4M-BDV

625 W

TOPCon

93Good match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.28 V	0.4%
Vmpp	40.94 V	40.88 V	0.1%
Isc	16.21 A	16.14 A	0.4%
Impp	15.51 A	15.29 A	1.4%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

JinkoSolar JKM625N-66HL4M-BDV-Z4

625 W

TOPCon

93Good match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.28 V	0.4%
Vmpp	40.94 V	40.88 V	0.1%
Isc	16.21 A	16.14 A	0.4%
Impp	15.51 A	15.29 A	1.4%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Luxor Solar LX-630M/182R-132+ GG SW PRO

630 W

TOPCon

93Good match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.15 V	0.1%
Vmpp	40.94 V	40.6 V	0.8%
Isc	16.21 A	16.41 A	1.2%
Impp	15.51 A	15.52 A	0.1%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Risen RSM132-11-625BNDG

625 W

TOPCon

93Good match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.27 V	0.3%
Vmpp	40.94 V	40.98 V	0.1%
Isc	16.21 A	16.1 A	0.7%
Impp	15.51 A	15.26 A	1.6%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

JinkoSolar JKM625N-66HL4M-BDX

625 W

TOPCon

93Good match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.28 V	0.4%
Vmpp	40.94 V	40.88 V	0.1%
Isc	16.21 A	16.14 A	0.4%
Impp	15.51 A	15.29 A	1.4%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DMEGC DM625G12RT-B66HSW

625 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.29 V	0.4%
Vmpp	40.94 V	41.05 V	0.3%
Isc	16.21 A	16.17 A	0.2%
Impp	15.51 A	15.25 A	1.7%
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

49.1 V

Vmpp

40.94 V

Isc

16.21 A

Impp

15.51 A

TcVoc

-0.25 %/°C

TcPmax

-0.29 %/°C

Pmax

635 W

Cells

132

Bifaciality

80%

Length

2382 mm

Width

1134 mm

Thickness

30 mm

Weight

33.1 kg

The JA Solar JAM66D45-635/LB 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

Model	Power	Voc	Isc
JAM66D45-615/LB	615 W	48.3 V	16.1 A
JAM66D45-620/LB	620 W	48.5 V	16.13 A
JAM66D45-625/LB	625 W	48.7 V	16.15 A
JAM66D45-630/LB	630 W	48.9 V	16.18 A
JAM66D45-640/LB	640 W	49.39 V	16.24 A

Frequently Asked Questions

What specs must match when replacing the JA Solar JAM66D45-635/LB?

The most critical specs to match are: cell count (must be exactly 132), Voc close to 49.1 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 JAM66D45-635/LB?

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 JAM66D45-635/LB.

All replacements

Find replacement for JA Solar JAM66D45-635/LB

635 W TOPCon solar panel with 132 cells. Voc 49.1 V · Isc 16.21 A · TcVoc -0.25%/°C.

Original Panel

Select the panel you want to replace

Same technology onlyShow only panels with matching cell technology

Compatible Replacements

193 panels found · 4146 panels excluded

DMEGC DM620G12RT-B66HSW

620 W

TOPCon

96Exact match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.09 V	0.0%
Vmpp	40.94 V	40.85 V	0.2%
Isc	16.21 A	16.11 A	0.6%
Impp	15.51 A	15.2 A	2.0%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DMEGC GH620G12RT-B66HST

620 W

TOPCon

96Exact match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.09 V	0.0%
Vmpp	40.94 V	40.85 V	0.2%
Isc	16.21 A	16.11 A	0.6%
Impp	15.51 A	15.2 A	2.0%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Ulica Solar UL-640M-132DDGB

640 W

IBC

95Exact match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.11 V	0.0%
Vmpp	40.94 V	41.18 V	0.6%
Isc	16.21 A	16.41 A	1.2%
Impp	15.51 A	15.54 A	0.2%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Risen RSM132-11-620BNDG

620 W

TOPCon

95Exact match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.08 V	0.0%
Vmpp	40.94 V	40.81 V	0.3%
Isc	16.21 A	16.04 A	1.0%
Impp	15.51 A	15.2 A	2.0%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

JinkoSolar JKM620N-66HL4M-BDV

620 W

TOPCon

94Good match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.08 V	0.0%
Vmpp	40.94 V	40.74 V	0.5%
Isc	16.21 A	16.08 A	0.8%
Impp	15.51 A	15.22 A	1.9%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Seraphim SRP-615-BTC-BG

615 W

TOPCon

94Good match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.12 V	0.0%
Vmpp	40.94 V	40.91 V	0.1%
Isc	16.21 A	15.92 A	1.8%
Impp	15.51 A	15.04 A	3.0%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

JinkoSolar JKM625N-66HL4M-BDV

625 W

TOPCon

93Good match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.28 V	0.4%
Vmpp	40.94 V	40.88 V	0.1%
Isc	16.21 A	16.14 A	0.4%
Impp	15.51 A	15.29 A	1.4%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

JinkoSolar JKM625N-66HL4M-BDV-Z4

625 W

TOPCon

93Good match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.28 V	0.4%
Vmpp	40.94 V	40.88 V	0.1%
Isc	16.21 A	16.14 A	0.4%
Impp	15.51 A	15.29 A	1.4%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Luxor Solar LX-630M/182R-132+ GG SW PRO

630 W

TOPCon

93Good match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.15 V	0.1%
Vmpp	40.94 V	40.6 V	0.8%
Isc	16.21 A	16.41 A	1.2%
Impp	15.51 A	15.52 A	0.1%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Risen RSM132-11-625BNDG

625 W

TOPCon

93Good match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.27 V	0.3%
Vmpp	40.94 V	40.98 V	0.1%
Isc	16.21 A	16.1 A	0.7%
Impp	15.51 A	15.26 A	1.6%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

JinkoSolar JKM625N-66HL4M-BDX

625 W

TOPCon

93Good match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.28 V	0.4%
Vmpp	40.94 V	40.88 V	0.1%
Isc	16.21 A	16.14 A	0.4%
Impp	15.51 A	15.29 A	1.4%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DMEGC DM625G12RT-B66HSW

625 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	49.1 V	49.29 V	0.4%
Vmpp	40.94 V	41.05 V	0.3%
Isc	16.21 A	16.17 A	0.2%
Impp	15.51 A	15.25 A	1.7%
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

49.1 V

Vmpp

40.94 V

Isc

16.21 A

Impp

15.51 A

TcVoc

-0.25 %/°C

TcPmax

-0.29 %/°C

Pmax

635 W

Cells

132

Bifaciality

80%

Length

2382 mm

Width

1134 mm

Thickness

30 mm

Weight

33.1 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
JAM66D45-615/LB	615 W	48.3 V	16.1 A
JAM66D45-620/LB	620 W	48.5 V	16.13 A
JAM66D45-625/LB	625 W	48.7 V	16.15 A
JAM66D45-630/LB	630 W	48.9 V	16.18 A
JAM66D45-640/LB	640 W	49.39 V	16.24 A