Find replacement for Maysun Solar MS445BC-54H

445 W IBC solar panel with 108 cells. Voc 39.73 V · Isc 14.37 A · TcVoc -0.23%/°C.

Original Panel

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Same technology onlyShow only panels with matching cell technology

Compatible Replacements

146 panels found · 3554 panels excluded

LONGi LR5-54HTH-445M

445 W

HPBC

100Exact match

Parameter	Original	Replacement	Deviation
Voc	39.73 V	39.73 V	0.0%
Vmpp	33.44 V	33.44 V	0.0%
Isc	14.37 A	14.37 A	0.0%
Impp	13.31 A	13.31 A	0.0%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Horay Solar HS440TC-MHO

440 W

TOPCon

93Good match

Parameter	Original	Replacement	Deviation
Voc	39.73 V	39.7 V	0.1%
Vmpp	33.44 V	33.24 V	0.6%
Isc	14.37 A	14.3 A	0.5%
Impp	13.31 A	13.24 A	0.5%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Horay Solar HS445TC-MHO

445 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	39.73 V	39.9 V	0.4%
Vmpp	33.44 V	33.44 V	0.0%
Isc	14.37 A	14.37 A	0.0%
Impp	13.31 A	13.31 A	0.0%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

LONGi LR7-54HGBB-450M

450 W

HPBC

92Good match

Parameter	Original	Replacement	Deviation
Voc	39.73 V	39.7 V	0.1%
Vmpp	33.44 V	33.22 V	0.7%
Isc	14.37 A	14.37 A	0.0%
Impp	13.31 A	13.55 A	1.8%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

LONGi LR5-54HTB-440M

440 W

HPBC

91Good match

Parameter	Original	Replacement	Deviation
Voc	39.73 V	39.83 V	0.3%
Vmpp	33.44 V	33.56 V	0.4%
Isc	14.37 A	14.15 A	1.5%
Impp	13.31 A	13.12 A	1.4%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Maysun Solar MS435BC-54HB

435 W

IBC

91Good match

Parameter	Original	Replacement	Deviation
Voc	39.73 V	39.63 V	0.3%
Vmpp	33.44 V	33.36 V	0.2%
Isc	14.37 A	14.08 A	2.0%
Impp	13.31 A	13.05 A	2.0%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Maysun Solar MS440BC-54HB

440 W

IBC

91Good match

Parameter	Original	Replacement	Deviation
Voc	39.73 V	39.83 V	0.3%
Vmpp	33.44 V	33.56 V	0.4%
Isc	14.37 A	14.15 A	1.5%
Impp	13.31 A	13.12 A	1.4%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

LONGi LR5-54HTB-435M

435 W

HPBC

91Good match

Parameter	Original	Replacement	Deviation
Voc	39.73 V	39.63 V	0.3%
Vmpp	33.44 V	33.36 V	0.2%
Isc	14.37 A	14.08 A	2.0%
Impp	13.31 A	13.05 A	2.0%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

LONGi LR5-54HTH-450M

450 W

HPBC

90Good match

Parameter	Original	Replacement	Deviation
Voc	39.73 V	39.93 V	0.5%
Vmpp	33.44 V	33.64 V	0.6%
Isc	14.37 A	14.45 A	0.6%
Impp	13.31 A	13.38 A	0.5%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

LONGi LR5-54HTH-440M

440 W

HPBC

90Good match

Parameter	Original	Replacement	Deviation
Voc	39.73 V	39.53 V	0.5%
Vmpp	33.44 V	33.24 V	0.6%
Isc	14.37 A	14.3 A	0.5%
Impp	13.31 A	13.24 A	0.5%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Maysun Solar MS440BC-54H

440 W

IBC

90Good match

Parameter	Original	Replacement	Deviation
Voc	39.73 V	39.53 V	0.5%
Vmpp	33.44 V	33.24 V	0.6%
Isc	14.37 A	14.29 A	0.6%
Impp	13.31 A	13.25 A	0.5%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Maysun Solar MS450BC-54H

450 W

IBC

90Good match

Parameter	Original	Replacement	Deviation
Voc	39.73 V	39.93 V	0.5%
Vmpp	33.44 V	33.64 V	0.6%
Isc	14.37 A	14.45 A	0.6%
Impp	13.31 A	13.38 A	0.5%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

String Compatibility Calculator

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Original Panel Specs

Voc

39.73 V

Vmpp

33.44 V

Isc

14.37 A

Impp

13.31 A

TcVoc

-0.23 %/°C

TcPmax

-0.29 %/°C

Pmax

445 W

Cells

108

Length

1722 mm

Width

1134 mm

Thickness

30 mm

Weight

20.8 kg

The Maysun Solar MS445BC-54H is a 445 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

Power	Voc	Isc
425 W	38.93 V	14.07 A
430 W	39.13 V	14.15 A
435 W	39.33 V	14.22 A
440 W	39.53 V	14.29 A
450 W	39.93 V	14.45 A

Frequently Asked Questions

What specs must match when replacing the Maysun Solar MS445BC-54H?

The most critical specs to match are: cell count (must be exactly 108), Voc close to 39.73 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 Maysun Solar MS445BC-54H?

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 Maysun Solar MS445BC-54H.