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RayMing 16 Layer Photovoltaic Backsheet PCB

Original price was: $2,960.00.Current price is: $2,890.00.

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Product Type: Backsheet
Material: FR4 S1000-2
Application: Photovoltaic
Layer: 16 layers PCB
Thickness: 5.0mm
Surface Finished: Immersion gold
Line width/spacing: 5/5mil
Minimum hole diameter: 0.3mm
Technical features: oversized backsheet, back-drilling technology, blind-embedded hole technology, high thickness-to-diameter ratio, stepped groove

What is Photovoltaic Backsheet PCB ?

A photovoltaic backsheet PCB, also known as a solar backsheet or PV backsheet, is a specialized printed circuit board (PCB) used in the construction of photovoltaic (PV) solar panels or modules.

The backsheet serves as the outermost rear layer of a solar panel, providing electrical insulation, mechanical protection, and environmental barrier properties. It plays a crucial role in ensuring the long-term durability and performance of the solar module.

Here are some key characteristics and functions of a photovoltaic backsheet PCB:

  1. Electrical insulation: The backsheet acts as an insulating layer, preventing electrical contact between the solar cells and the external environment, such as the mounting structure or frame.
  2. Environmental protection: The backsheet protects the solar cells and internal components of the module from environmental factors like moisture, ultraviolet (UV) radiation, temperature extremes, and mechanical stress.
  3. Structural support: The backsheet provides structural support and rigidity to the solar panel, helping to maintain the integrity of the module during installation and operation.
  4. Electrical routing: In some cases, the backsheet PCB may incorporate conductive traces or circuitry for routing electrical connections or integrating bypass diodes or other components.
  5. Material composition: Photovoltaic backsheets are typically multilayer constructions made of various materials, such as polyvinyl fluoride (PVF), polyethylene terephthalate (PET), or other polymer films, combined with layers of insulating materials and adhesives.
  6. Durability: Backsheets are designed to withstand harsh outdoor conditions, including temperature cycling, humidity, and UV exposure, over the expected 25-30 year lifespan of a solar panel.
  7. Appearance: The backsheet can also contribute to the aesthetic appearance of the solar module, as it is visible from the rear side.

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