Find replacement for Astronergy CHSM54N-HC425

425 W TOPCon solar panel with 108 cells. Voc 38.2 V · Isc 13.98 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

146 panels found · 4193 panels excluded

Jolywood JW-HT108N-425

425 W

TOPCon

93Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.1 V	0.3%
Vmpp	32.1 V	32.1 V	0.0%
Isc	13.98 A	14.05 A	0.5%
Impp	13.24 A	13.24 A	0.0%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°C

Astronergy CHSM54N-HC430

430 W

TOPCon

89Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.4 V	0.5%
Vmpp	32.1 V	32.27 V	0.5%
Isc	13.98 A	14.09 A	0.8%
Impp	13.24 A	13.33 A	0.7%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Jolywood JW-HT108N-430

430 W

TOPCon

89Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.3 V	0.3%
Vmpp	32.1 V	32.3 V	0.6%
Isc	13.98 A	14.12 A	1.0%
Impp	13.24 A	13.32 A	0.6%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°C

JinkoSolar JKM425N-54HL4-(V)

425 W

TOPCon

88Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.3 V	0.3%
Vmpp	32.1 V	31.7 V	1.2%
Isc	13.98 A	14.15 A	1.2%
Impp	13.24 A	13.41 A	1.3%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

TommaTech TT425-108TN10

425 W

TOPCon

88Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.31 V	0.3%
Vmpp	32.1 V	32.14 V	0.1%
Isc	13.98 A	14.03 A	0.4%
Impp	13.24 A	13.23 A	0.1%
TcVoc	-0.25 %/°C	-0.26 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°C

TommaTech TT425-108TNFB10 Dark Series

425 W

TOPCon

88Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.11 V	0.2%
Vmpp	32.1 V	32.14 V	0.1%
Isc	13.98 A	14.03 A	0.4%
Impp	13.24 A	13.23 A	0.1%
TcVoc	-0.25 %/°C	-0.26 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°C

TommaTech TT425-108TNB10

425 W

TOPCon

88Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.31 V	0.3%
Vmpp	32.1 V	32.14 V	0.1%
Isc	13.98 A	14.03 A	0.4%
Impp	13.24 A	13.23 A	0.1%
TcVoc	-0.25 %/°C	-0.26 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°C

TommaTech TT425-108TNB10 G2G

425 W

TOPCon

88Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.31 V	0.3%
Vmpp	32.1 V	32.14 V	0.1%
Isc	13.98 A	14.03 A	0.4%
Impp	13.24 A	13.23 A	0.1%
TcVoc	-0.25 %/°C	-0.26 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°C

JinkoSolar JKM420N-54HL4-(V)

420 W

TOPCon

87Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.11 V	0.2%
Vmpp	32.1 V	31.51 V	1.8%
Isc	13.98 A	14.07 A	0.6%
Impp	13.24 A	13.33 A	0.7%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

TommaTech TT420-108TN10

420 W

TOPCon

87Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.11 V	0.2%
Vmpp	32.1 V	31.94 V	0.5%
Isc	13.98 A	13.95 A	0.2%
Impp	13.24 A	13.15 A	0.7%
TcVoc	-0.25 %/°C	-0.26 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°C

TommaTech TT420-108TNB10

420 W

TOPCon

87Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.11 V	0.2%
Vmpp	32.1 V	31.94 V	0.5%
Isc	13.98 A	13.95 A	0.2%
Impp	13.24 A	13.15 A	0.7%
TcVoc	-0.25 %/°C	-0.26 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°C

TommaTech TT420-108TNB10 G2G

420 W

TOPCon

87Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.11 V	0.2%
Vmpp	32.1 V	31.94 V	0.5%
Isc	13.98 A	13.95 A	0.2%
Impp	13.24 A	13.15 A	0.7%
TcVoc	-0.25 %/°C	-0.26 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°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

38.2 V

Vmpp

32.1 V

Isc

13.98 A

Impp

13.24 A

TcVoc

-0.25 %/°C

TcPmax

-0.29 %/°C

Pmax

425 W

Cells

108

Length

1722 mm

Width

1134 mm

Thickness

30 mm

Weight

21.3 kg

The Astronergy CHSM54N-HC425 is a 425 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
CHSM54N-HC430	430 W	38.4 V	14.09 A
CHSM54N-HC435	435 W	38.6 V	14.19 A
CHSM54N-HC440	440 W	38.8 V	14.3 A
CHSM54N-HC445	445 W	39 V	14.41 A

Frequently Asked Questions

What specs must match when replacing the Astronergy CHSM54N-HC425?

The most critical specs to match are: cell count (must be exactly 108), Voc close to 38.2 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 Astronergy CHSM54N-HC425?

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 Astronergy CHSM54N-HC425.

All replacements

Find replacement for Astronergy CHSM54N-HC425

425 W TOPCon solar panel with 108 cells. Voc 38.2 V · Isc 13.98 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

146 panels found · 4193 panels excluded

Jolywood JW-HT108N-425

425 W

TOPCon

93Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.1 V	0.3%
Vmpp	32.1 V	32.1 V	0.0%
Isc	13.98 A	14.05 A	0.5%
Impp	13.24 A	13.24 A	0.0%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°C

Astronergy CHSM54N-HC430

430 W

TOPCon

89Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.4 V	0.5%
Vmpp	32.1 V	32.27 V	0.5%
Isc	13.98 A	14.09 A	0.8%
Impp	13.24 A	13.33 A	0.7%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Jolywood JW-HT108N-430

430 W

TOPCon

89Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.3 V	0.3%
Vmpp	32.1 V	32.3 V	0.6%
Isc	13.98 A	14.12 A	1.0%
Impp	13.24 A	13.32 A	0.6%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°C

JinkoSolar JKM425N-54HL4-(V)

425 W

TOPCon

88Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.3 V	0.3%
Vmpp	32.1 V	31.7 V	1.2%
Isc	13.98 A	14.15 A	1.2%
Impp	13.24 A	13.41 A	1.3%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

TommaTech TT425-108TN10

425 W

TOPCon

88Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.31 V	0.3%
Vmpp	32.1 V	32.14 V	0.1%
Isc	13.98 A	14.03 A	0.4%
Impp	13.24 A	13.23 A	0.1%
TcVoc	-0.25 %/°C	-0.26 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°C

TommaTech TT425-108TNFB10 Dark Series

425 W

TOPCon

88Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.11 V	0.2%
Vmpp	32.1 V	32.14 V	0.1%
Isc	13.98 A	14.03 A	0.4%
Impp	13.24 A	13.23 A	0.1%
TcVoc	-0.25 %/°C	-0.26 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°C

TommaTech TT425-108TNB10

425 W

TOPCon

88Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.31 V	0.3%
Vmpp	32.1 V	32.14 V	0.1%
Isc	13.98 A	14.03 A	0.4%
Impp	13.24 A	13.23 A	0.1%
TcVoc	-0.25 %/°C	-0.26 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°C

TommaTech TT425-108TNB10 G2G

425 W

TOPCon

88Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.31 V	0.3%
Vmpp	32.1 V	32.14 V	0.1%
Isc	13.98 A	14.03 A	0.4%
Impp	13.24 A	13.23 A	0.1%
TcVoc	-0.25 %/°C	-0.26 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°C

JinkoSolar JKM420N-54HL4-(V)

420 W

TOPCon

87Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.11 V	0.2%
Vmpp	32.1 V	31.51 V	1.8%
Isc	13.98 A	14.07 A	0.6%
Impp	13.24 A	13.33 A	0.7%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

TommaTech TT420-108TN10

420 W

TOPCon

87Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.11 V	0.2%
Vmpp	32.1 V	31.94 V	0.5%
Isc	13.98 A	13.95 A	0.2%
Impp	13.24 A	13.15 A	0.7%
TcVoc	-0.25 %/°C	-0.26 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°C

TommaTech TT420-108TNB10

420 W

TOPCon

87Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.11 V	0.2%
Vmpp	32.1 V	31.94 V	0.5%
Isc	13.98 A	13.95 A	0.2%
Impp	13.24 A	13.15 A	0.7%
TcVoc	-0.25 %/°C	-0.26 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°C

TommaTech TT420-108TNB10 G2G

420 W

TOPCon

87Good match

Parameter	Original	Replacement	Deviation
Voc	38.2 V	38.11 V	0.2%
Vmpp	32.1 V	31.94 V	0.5%
Isc	13.98 A	13.95 A	0.2%
Impp	13.24 A	13.15 A	0.7%
TcVoc	-0.25 %/°C	-0.26 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.3 %/°C	±0.010 %/°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

38.2 V

Vmpp

32.1 V

Isc

13.98 A

Impp

13.24 A

TcVoc

-0.25 %/°C

TcPmax

-0.29 %/°C

Pmax

425 W

Cells

108

Length

1722 mm

Width

1134 mm

Thickness

30 mm

Weight

21.3 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
CHSM54N-HC430	430 W	38.4 V	14.09 A
CHSM54N-HC435	435 W	38.6 V	14.19 A
CHSM54N-HC440	440 W	38.8 V	14.3 A
CHSM54N-HC445	445 W	39 V	14.41 A