S SOLARSPECS
Technical specifications for the First Solar FS-6435A-P-B: maximum power 435W, efficiency 17.26%, Vmp 183.6V, Voc 219.6V, Isc 2.55A. This Thin-Film module carries a 25-year warranty.
🏭View all 218 First Solar models Brand range: 67.5W–550W
Thin-Film

First Solar FS-6435A-P-B

Max Power
435W
Efficiency
17.26%
Operating V
183.6V
Warranty
25Y
First Solar FS-6435A-P-B logo
Technical Specifications
Open Circuit Voltage (Voc)219.6V
Short Circuit Current (Isc)2.55A
Voltage at Pmax (Vmp)183.6V
Current at Pmax (Imp)2.37A
Temp. Coefficient of Pmax-0.296%/°C
Dimensions2039 x 1236 x 35 mm
Weight31.5kg
NOCT50.1°C
PTC Rating410.4W
📋 Data verified: June 2026 📄 Specs based on STC (1000 W/m², 25°C, AM 1.5) 🏷️ 218 First Solar models in database

FAQ

What is the max power output of the First Solar FS-6435A-P-B?

The First Solar FS-6435A-P-B is rated at 435W under STC (1000 W/m², 25°C, AM 1.5).

How efficient is the First Solar FS-6435A-P-B?

This panel has 17.26% efficiency, which is standard for commercial solar panels.

What are the dimensions and weight of the First Solar FS-6435A-P-B?

It measures 2039 x 1236 x 35 mm and weighs 31.5kg.

How does temperature affect the First Solar FS-6435A-P-B?

With a temp coefficient of -0.296%/°C, it outperforms the industry average of -0.35 to -0.40%/°C.

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First Solar offers 218 solar panel models from 67.5W to 550W.

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