JA Solar JAM66D50-645/GB

645 WTOPConDeepBlue 5.0Glass BackBifacial 85%198 cells

The JA Solar JAM66D50-645/GB is a 645 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): : 645 W
Open-Circuit Voltage (Voc): : 49.96 V
Max Power Voltage (Vmpp): : 40.98 V
Short-Circuit Current (Isc): : 16.53 A
Max Power Current (Impp): : 15.74 A
Number of Cells: : 198

Temperature

Temp. Coefficient Voc: : -0.22 %/°C
Temp. Coefficient Isc: : 0.041 %/°C
Temp. Coefficient Pmax: : -0.26 %/°C
Max System Voltage: : 1,500 V
Nominal Cell Temperature (NOCT): : 45 °C
Cell Technology: : TOPCon
Bifaciality Factor: : 85%
Max Series Fuse: : 35 A
Power Tolerance: : +3%

Physical

Length: : 2,382 mm
Width: : 1,134 mm
Thickness: : 30 mm
Weight: : 32.8 kg

Datasheet

Download PDF1.2 MB

Other Models in This Series

Model	Power	Voc	Isc
JAM66D50-645/GBCurrent	645 W	49.96 V	16.53 A
JAM66D50-650/GB	650 W	50.05 V	16.58 A
JAM66D50-655/GB	655 W	50.14 V	16.63 A
JAM66D50-660/GB	660 W	50.23 V	16.68 A
JAM66D50-665/GB	665 W	50.32 V	16.73 A
JAM66D50-670/GB	670 W	50.41 V	16.78 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