Suntech STP640S-C78/Nsh+

640 WTOPConUltra VProMBBHalf-CellBifacial 80%156 cells

The Suntech STP640S-C78/Nsh+ is a 640 W solar panel featuring TOPCon cell technology. Below are the verified electrical and thermal specifications extracted from the manufacturer datasheet.

Technical Specifications

Electrical Characteristics (STC)

Peak Power (Pmax): : 640 W
Open-Circuit Voltage (Voc): : 56.18 V
Max Power Voltage (Vmpp): : 46.16 V
Short-Circuit Current (Isc): : 14.54 A
Max Power Current (Impp): : 13.86 A
Number of Cells: : 156

Temperature

Temp. Coefficient Voc: : -0.25 %/°C
Temp. Coefficient Isc: : 0.046 %/°C
Temp. Coefficient Pmax: : -0.29 %/°C
Max System Voltage: : 1,500 V
Nominal Cell Temperature (NOCT): : 45 °C
Cell Technology: : TOPCon
Bifaciality Factor: : 80%
Max Series Fuse: : 25 A
Power Tolerance: : +3%

Physical

Length: : 2,465 mm
Width: : 1,134 mm
Thickness: : 30 mm
Weight: : 34.7 kg

Datasheet

Download PDF0.9 MB

Find on AmazonCheck current price and availability

As an Amazon Associate, Solar Stack earns from qualifying purchases.

Other Models in This Series

Model	Power	Voc	Isc
STP630S-C78/Nsh+	630 W	55.88 V	14.4 A
STP635S-C78/Nsh+	635 W	56.03 V	14.47 A
STP640S-C78/Nsh+Current	640 W	56.18 V	14.54 A
STP645S-C78/Nsh+	645 W	56.33 V	14.61 A
STP650S-C78/Nsh+	650 W	56.48 V	14.68 A

Check in calculator

Verify string compatibility with your inverter

Find replacement

Find electrically compatible alternatives

Find compatible inverter

See which inverters work with this panel