5BB Poly Cells DWS

Tongwei Solar Co., Ltd.
Price:
From $0.210 / Wp
Cell Type: Polycrystalline
Power Range: 4.45~4.67 Wp
Region: China China
Note: Your Enquiry will be sent directly to Tongwei Solar Co., Ltd..

Description:

1. High efficiency 18.7%
2. 100% checked for reverse current and visual appearance
3. Good PID/LID resistance
4. Outstanding electrical stability
5. Great solder-ability

Product Characteristics

Model No.
4.45 4.47 4.5 4.52 4.55 4.57 4.59 4.62 4.64 4.67
Product Characteristics  
Cell Technology Polycrystalline
Dimensions 156.75×156.75 mm
Cell Thickness 210 ± 30 µm
Front Surface (-)  
No. of Busbars 5
Busbar Width 0.7 mm
Busbar Material Silver
Anti Reflection Coating Silicon nitride
Back Surface (+)  
No. of Soldering Pads 5
Soldering Pad Width 1.8 mm
Soldering Pad Material Silver
Back Surface Field (BSF) Aluminium
Electrical Data at STC  
Maximum Power (Pmax)
4.45 W 4.47 W 4.5 W 4.52 W 4.55 W 4.57 W 4.59 W 4.62 W 4.64 W 4.67 W
Voltage at Maximum Power Point (Vmpp)
0.534 V 0.535 V 0.538 V 0.539 V 0.541 V 0.543 V 0.544 V 0.546 V 0.547 V 0.548 V
Current at Maximum Power Point (Impp)
8.333 A 8.351 A 8.362 A 8.382 A 8.406 A 8.424 A 8.44 A 8.461 A 8.489 A 8.513 A
Open Circuit Voltage (Voc)
0.633 V 0.634 V 0.636 V 0.637 V 0.638 V 0.64 V 0.641 V 0.643 V 0.644 V 0.645 V
Short Circuit Current (Isc)
8.88 A 8.892 A 8.907 A 8.92 A 8.936 A 8.958 A 8.977 A 8.991 A 9.003 A 9.024 A
Cell Efficiency
18.1 % 18.2 % 18.3 % 18.4 % 18.5 % 18.6 % 18.7 % 18.8 % 18.9 % 19 %
Fill Factor (FF)
79.16 % 79.25 % 79.42 % 79.51 % 79.77 % 79.79 % 79.79 % 79.91 % 80.09 % 80.15 %
Thermal Ratings  
Temperature Coefficient of Pmax -0.36 %/˚C
Temperature Coefficient of Voc -0.36 %/˚C
Temperature Coefficient of Isc 0.06 %/˚C
Intensity Dependence
Intensity
Voc
Vmpp
1000 W/m2
1
--
900 W/m2
0.99
--
800 W/m2
0.99
--
600 W/m2
0.98
--
400 W/m2
0.96
--
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Tongwei Solar Co., Ltd.

No. 888 Changning Ave., High-Tech Zone, Hefei, Anhui
No. Staff: 3,500
Parent Company: Tongwei Group
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Useful Contacts

Contact Face
Mr.Fang International Marketing Manager

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