Seraphim Solar System Co.Ltd. SRP-640-BTC-BG

Mono-c-Si Bifacial

640 W Pmax

50.12 V Voc

16.17 A Isc

41.91 V Vmp

15.27 A Imp

23.7 % eff.

0.7897 FF

66 cells

IV & PV Curves at STC (1000 W/m², 25 °C)

IV Curves at Multiple Conditions

Irradiance sweep at 25 °C

Temperature sweep at 1000 W/m²

Single-Diode Model Parameters

Source: California Energy Commission module list · retrieved via SAM library · energy.ca.gov · All data sources

Parameter	Symbol	Value	Unit
Nameplate (STC)
STC Power	STC	639.966	W
PTC Power	PTC	604.9	W
Open-circuit voltage	V_oc_ref	50.12	V
Short-circuit current	I_sc_ref	16.17	A
Max-power voltage	V_mp_ref	41.91	V
Max-power current	I_mp_ref	15.27	A
Fill factor	FF	0.7897	—
Efficiency (STC)	η	23.7	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.006791	A/°C
Voc temperature coefficient	beta_oc	-0.123646	V/°C
Pmax temperature coefficient	gamma_r	-0.2926	%/°C
NOCT	T_NOCT	45.8	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.73394	V
Light-generated current (ref)	I_L_ref	16.18609	A
Saturation current (ref)	I_o_ref	4.45e-12	A
Series resistance	R_s	0.17729	Ω
Shunt resistance (ref)	R_sh_ref	178.161	Ω
Cells in series	N_s	66	—
CEC Adjust factor	Adjust	-0.8899	%

Actions

Open in PV Explorer Generate PAN File Datasheet not on file CEC Source Data

Module Specifications

Technology Mono-c-Si

Bifacial Yes

BIPV No

Cells in series 66

Module area 2.7 m²

NOCT 45.8 °C

Temp. coefficient of Pmax -0.293 %/°C

Temp. coefficient of Voc -0.247 %/°C

Temp. coefficient of Isc 0.042 %/°C

CEC list On the 23 Jun 2026 list

Parameters from 23 Jun 2026 list

Measured Data

No measured data yet for this module.

Similar Modules

Other manufacturers, same technology and cell count, power within 3 %.