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Suntech STP435S-H48-Nfb
Suntech Brand review

STP435S-H48-Nfb

435 Wp TOPCon
ComparePV verdict

Solid all-round for its segment

Rank 7,563 of 14,005
Compare panels Datasheet PDF
Power (Wp)
435
Typical for its class
Efficiency (%)
21.80
Typical · median 22.00%
Density (Wp/m²)
217.7
Typical · median 220.2
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
21.5
Typical · median 22.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Suntech Ultra V Pro Mini series in the Half-cell N-Type TOPCon version is designed for maximum energy production from limited rooftop surfaces, without compromising on aesthetics. The use of N-Type TOPCon cells ensures highly stable performance over time and minimizes typical light degradation-related losses, translating to predictable yields over years. The half-cell design improves module performance during partial shading and thermal stress, while simultaneously supporting higher connection reliability within the panel.

The full-black variant is the choice for investors seeking a discreet installation that visually harmonizes with modern architecture. At the same time, it is a single glass monofacial module - practical where low weight, simpler installation, and compatibility with popular roofing systems matter.

The Ultra V Pro Mini excels particularly in residential and commercial installations on pitched and flat roofs - ideal for homeowners seeking high efficiency in a smaller footprint, reliable performance in low-light conditions, and TOPCon technology in the premium segment.

Ranking

1,218 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.80% 22.00% Typical 7,022
Power density 217.7 220.2 Typical 7,066
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 49.4 51.4 Typical 2,936
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 0 caution
Best for

Residential, commercial and shaded-installations.

Notes from the database
  • At 21.8% efficiency, this panel is on par with typical TOPCon 400-450W modules
  • At 217.7 W/m² power density, roof space requirements are typical for TOPCon 400-450W panels
  • At -0.29%/°C, hot weather performance is typical for TOPCon 400-450W panels
  • #7022 for efficiency, #2165 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 435 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.80 % Typical Segment median 22.00%
Vmpp · Impp 28.79 V · 15.11 A Operating point at max power
Voc · Isc 35.08 V · 15.77 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1762×1134×30 mm · 2.00 m² of roof
Weight 21.5 kg Typical Typical · median 22.0 kg
Cells 96 · TOPCon Monocrystalline
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.046 %/°C
NOCT 42 °C At 800 W/m², 20 °C ambient
Product warranty 25 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 380 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Suntech in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 435 Wp appear here. The rest cover the whole series.

Current-Voltage & Power-Voltage Curves Current-Voltage & Power-Voltage Curves Whole series

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.290 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Suntech STP435S-H48-Nfb 435 W 21.80% -0.290 21.5 kg You are here
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg +50 W, cooler, +2.5 pp
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg +50 W, cooler, +2.5 pp
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg +50 W, cooler, +2.5 pp
GK-5-54HG-485M 485 W 24.30% -0.260 21.0 kg +50 W, cooler, +2.5 pp
ZEUS 3.0+ 108 485WP 485 W 24.30% -0.260 24.2 kg +50 W, cooler, +2.5 pp
STP430S-H48-Nfb 430 W 21.50% -0.290 21.5 kg -0.3 pp
STP440S-H48-Nfb 440 W 22.00% -0.290 21.5 kg Very close match
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +75 W, cooler, +3.2 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +60 W, cooler, +3.0 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +70 W, cooler, +2.9 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +55 W, cooler, +2.7 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +65 W, cooler, +2.7 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +65 W, cooler, +2.7 pp

Found 1395 panels of the same or similar size to this one, within ±10 mm. See them here Found 1425 panels of the same or similar size to this one, within ±25 mm. See them here Found 3614 panels of the same or similar size to this one, within ±50 mm. See them here Found 3962 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is the maximum power output of the Suntech Ultra V Pro mini panel?
Modules from the Ultra V Pro mini series reach a maximum power of up to 450 Wp. This is an excellent result for a smaller-format module, achieved through N-Type TOPCon half-cell cell technology, which reduces energy losses and improves conversion efficiency compared to older PERC technology.
How does TOPCon technology differ from PERC in Suntech panels?
N-Type TOPCon cells have a lower degradation rate over time and are less susceptible to LID (light-induced degradation) compared to conventional P-Type PERC cells. As a result, the Ultra V Pro mini panel maintains higher and more stable energy output throughout its service life, translating into genuinely higher yields over the long term.
What warranty comes with the Suntech Ultra V Pro mini panels?
The manufacturer provides a 25-year product warranty along with a 30-year power performance warranty. This means Suntech commits to maintaining an adequate level of energy output over three decades, making it one of the longer warranty periods currently available among premium-class photovoltaic panels.
Is the full-black Ultra V Pro mini panel suitable for a pitched roof?
Yes, the full-black variant in a single glass monofacial construction is lighter than dual-glass bifacial modules, making installation easier on typical pitched roof trusses. The uniform black appearance blends well with dark roofing materials, giving the installation a discreet look that doesn't stand out visually on the building facade.
Do Ultra V Pro mini panels perform well under partial shading?
The half-cell design splits cells into smaller segments, so shading part of the panel, for instance from a chimney or antenna, causes a smaller drop in overall module power compared to full-cell panels. Reduced current and thermal losses also contribute to longer service life of the panel's internal connections.
Is Suntech a tier 1 manufacturer, and where are Ultra V Pro mini panels made?
Yes, Suntech is classified as a tier 1 manufacturer, meaning it has a solid financial standing and years of experience producing photovoltaic panels at an industrial scale. Manufacturing facilities are located in China, and the brand has long featured in Bloomberg NEF rankings among the most bankable PV module suppliers worldwide.
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