6V 100mA Mini Solar Panel 120x38mm

6V 100mA Mini Solar Panel 120x38mm is a compact, weather-resistant polycrystalline silicon epoxy-encapsulated photovoltaic module that converts sunlight directly into 6.0V DC electrical power at up to 100mA (0.60W peak). Built on a rigid fiberglass backing board and sealed under a crystal-clear, UV-stabilized epoxy resin dome, it delivers 2 to 3 times the power density of amorphous thin-film cells and is ideal for rectangular solar robot chassis, 3.7V Li-Ion / 4V Lead-Acid solar chargers, and outdoor wireless sensor enclosures.

Key Features:

• High-Efficiency Polycrystalline Cells: Laser-cut polycrystalline silicon solar cells arranged in series deliver a rated working voltage of 6.0V and 100mA current under standard sunlight.
• Weatherproof Epoxy Encapsulation: Sealed in hard, transparent UV- and moisture-resistant epoxy resin that protects the fragile silicon wafers from rain, dust, and mechanical scratches without requiring an external frame.
• Rigid FR-4 / ABS Backing Substrate: Warp-resistant backing plate with clearly marked positive (+) and negative (-) terminals (rear tinned positive (+) & negative (-) copper tape pads).
• Series & Parallel Array Ready: Multiple panels can be wired in series to increase voltage or in parallel to multiply charging current (use a Schottky blocking diode such as 1N5819 when charging batteries).
• Compact & Lightweight Footprint: Measures 120 mm × 38 mm × 3.0 mm and weighs just 22 g, making it effortless to mount on small robot chassis, IoT enclosures, or handheld projects.

Technical Specifications:

• Cell Technology: Polycrystalline Silicon Epoxy-Encapsulated
• Rated Working Voltage (Vmp): 6.0V DC
• Rated Working Current (Imp): 100mA
• Peak Output Power (Pmax): 0.60W
• Open-Circuit Voltage (Voc): ~15%–20% above Vmp in direct midday sun
• Standard Test Conditions (STC): 1000 W/m² Irradiance (~38,000–100,000 Lux), AM1.5, 25°C Cell Temperature
• Operating Temperature Range: -20°C to +65°C

Mechanical Specifications:

• Surface Coating: High-Transmittance UV-Resistant Epoxy Resin
• Substrate Material: Rigid Fiberglass / Composite PCB Backing
• Electrical Termination: Rear Tinned Positive (+) & Negative (-) Copper Tape Pads

Dimensions:

• Length: 120 mm
• Width: 38 mm
• Thickness: 3.0 mm
• Weight: ~22 g

Pinout and Wiring:

• Positive Terminal (+): Connects to solar charger VIN+ or battery positive via a 1N5819 Schottky reverse-blocking diode.
• Negative Terminal (-): Connects to common system ground (GND / VIN-).
• Soldering Note: When soldering wires to rear copper pads, use a pre-tinned iron at 320°C–350°C for less than 2 seconds to avoid delaminating the backing foil.

Datasheet Reference:

• Photovoltaic Architecture: Series-Connected Polycrystalline Silicon p-n Junction Array
• Design Note: Indoor room lighting provides less than 1%–5% of outdoor solar irradiance; always test voltage and current under direct outdoor sunlight or a halogen lamp.

Commonly Used in:

• Solar-Powered IoT Sensor Nodes and Environmental Loggers
• Automatic Dusk-to-Dawn Solar Garden & Pathway Lights
• STEM Solar Cars, Boats, and Educational Science Fair Kits
• Trickle Chargers for NiMH, LiFePO4, and Li-Ion Batteries

Applications:

• Specifically suited for rectangular solar robot chassis, 3.7V Li-Ion / 4V Lead-Acid solar chargers, and outdoor wireless sensor enclosures.
• Pairs seamlessly with solar charge controllers (such as CN3065, CN3791, TP4056, or YX8018) to build self-sustaining off-grid electronics.
• Demonstrates photovoltaic energy conversion, maximum power point loading, and series/parallel solar array wiring in physics and engineering labs.

Equivalent Models:

• 5V 110mA 0.55W Mini Solar Panel 70x70mm: Square-format 5V polycrystalline epoxy solar panel.
• 5.5V 180mA 0.99W Mini Solar Panel 90x90mm: Higher-current ~1W square polycrystalline solar cell for faster USB/Li-Ion charging.

Package Includes:

• 1 × 6V 100mA Mini Solar Panel 120x38mm