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POLY CELLS – 4BB

Features

High conversion efficiency with high reliability,
Uniform cell performance with stable process control,
Low mismatch of cell performance during encapsulation,
Excellent performance under low lighting,
Low hot spot effect,
Low degradation under light exposure.

Production and quality control

Proper inspection through incoming production, outgoing and packaging,
Efficiency tested within ±0,2% accuracy,
100% checked for reverse current and visual appearance,
Reference cell calibrated from Fraunhofer.

Dimensions:

156mm x 156mm ± 0,5mm

Thickness (SI):

200μm ± 400μm

Front:

Silicon nitride antireflection coatings. Solid/hollow alternative silver busbar

Back:

Full-surface aluminum back-surface field. 2,0mm ± 0,1mm (silver/aluminum) soldering pads

Efficiency Code	192	191	190	189	188	187	186	185	184	183	182	181	180	179	178
Efficiency Eff (%)	19.20	19.10	19.00	18.90	18.80	18.70	18.60	18.50	18.40	18.30	18.20	18.10	18.00	17.90	17.80
Power Ppm (W)	4.669	4.645	4.623	4.599	4.575	4.552	4.527	4.503	4.479	4.455	4.430	4.406	4.380	4.359	4.331
Short Circuit Current Isc (A)	9.067	9.049	9.029	9.004	8.975	8.947	8.923	8.900	8.881	8.870	8.859	8.842	8.832	8.820	8.809
Open Circuit Voltage Voc (V)	0.636	0.635	0.634	0.633	0.632	0.631	0.631	0.630	0.630	0.630	0.629	0.628	0.627	0.626	0.625
Max. Power Current Ipm (A)	8.622	8.594	8.570	8.547	8.521	8.482	8.455	8.423	8.397	8.385	8.368	8.341	8.323	8.310	8.302
Max. Power Voltage Vpm (V)	0.542	0.541	0.539	0.538	0.537	0.537	0.536	0.535	0.533	0.531	0.529	0.528	0.526	0.525	0.523
Current Temperature Coefficient α (Isc)								0.02%/K
Voltage Temperature Coefficient β (Voc)								-0.32 %/K
Power Temperature Coefficient γ (Pmax)								-0.40 %/K

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