5.5V 180mA 0.99W Mini Solar Panel 90x90mm

5.5V 180mA 0.99W Mini Solar Panel 90x90mm provides a dependable and efficient portable power source for small-scale electronics projects and custom DIY solar chargers. This compact photovoltaic module captures ambient sunlight to generate clean electrical energy with impressive conversion efficiency. Consequently, it serves as an exceptional power supply for low-power microcontrollers, rechargeable battery packs, and portable sensor nodes. Furthermore, the durable epoxy-encapsulated surface protects internal solar cells against moisture, dust, and physical wear in outdoor environments. Therefore, makers and engineers can deploy this reliable mini panel across various remote installations without frequent maintenance concerns.

Key Features:

• High Conversion Efficiency: Utilizes advanced photovoltaic materials to maximize electrical output under direct sunlight conditions.
• Epoxy Resin Surface: Features a weather-resistant coating that shields the solar matrix from scratches, rain, and environmental debris.
• Optimal Output Voltage: Delivers a steady 5.5V output, making it compatible with 5V USB charging circuits and 3.7V lithium battery management modules.
• Compact Square Form Factor: The 90x90mm footprint fits seamlessly into small enclosures and portable device casings.
• Pre-Soldered Connections: Includes secure solder points for rapid wire attachment and circuit integration.

Technical Specifications:

• Maximum Power (Pmp): 0.99W
• Operating Voltage (Vmp): 5.5VDC
• Operating Current (Imp): 180mA
• Open Circuit Voltage (Voc): ≈ 6.5VDC
• Short Circuit Current (Isc): ≈ 200mA
• Cell Technology: High-efficiency polycrystalline silicon

Mechanical Specifications:

• Encapsulation: Clear epoxy resin with a robust PCB backing board
• Output Terminals: Dual solder pads for positive and negative lead connections
• Weatherproofing: Water-resistant design suitable for outdoor deployment
• Rigidity: Solid structural layout resistant to bending and warping

Dimensions:

• Panel Length: 90.0 mm
• Panel Width: 90.0 mm
• Panel Thickness: ≈ 3.0 mm
• Weight: ≈ 25.0 g

Pinout and Wiring:

• Positive Terminal (+): Connects to the positive rail of your charging circuit or load via a blocking diode.
• Negative Terminal (-): Connects to the common ground or negative return path of the power system.
• Note: However, always integrate a Schottky blocking diode in series with the positive wire to prevent reverse current discharge through the panel at night.

Datasheet Reference:

• Download Adafruit Small Solar Panel Technical Reference

Commonly Used in:

• DIY Power Banks: Building pocket-sized solar chargers for smartphones and small electronic gadgets.
• Solar Garden Lights: Powering decorative LED fixtures and pathway illumination circuits.
• Remote Sensor Nodes: Maintaining autonomous charge levels on unattended environmental monitors.

Applications:

• Battery Trickle Charging: Keeping 3.7V LiPo or NiMH rechargeable battery cells topped off outdoors.
• Educational Science Kits: Demonstrating renewable energy conversion principles in school laboratories.
• Wearable Electronics: Supplying auxiliary green energy to outdoor hiking gear and backpacks.

Equivalent Models:

• 5V 100mA Mini Solar Panel: A smaller alternative output variant, although generating lower total current.
• 12V 1W Solar Panel Module: A higher voltage alternative designed for 12V battery charging systems.
• 5V 500mA USB Solar Panel: A larger high-capacity panel option, whereas this 90x90mm version prioritizes ultra-compact dimensions.

Package Includes:

• 1 × 5.5V 180mA 0.99W Mini Solar Panel 90x90mm