Space Solar Cell CIC 3GA-2
CIC GaAs Solar Cell – Space Solar Cell CIC 3GA-2
This Space Solar Cell product is an GaInP2/GaAs/Ge on Ge substrate triple junction solar cell assembly with 30% efficiency(28% and 32% also available). The space solar cell assembly is equipped with an discrete Si bypass diode, Interconnects and cover glass. We also offer bare cells version.
High-Efficiency Triple Junction CIC Space Solar Cell
The CIC GaAs Solar Cell 3GA-2 is a state-of-the-art triple junction space solar cell engineered with GaInP₂/GaAs/Ge layers on a Germanium substrate. With efficiency levels up to 30% (also available in 28% and 32%), this product is widely adopted in aerospace power systems, offering exceptional durability, efficiency, and radiation resistance.
As a core component of our Space Solar Cell lineup, this CIC Space Solar Cell integrates discrete silicon bypass diodes, silver-coated kovar interconnectors, and radiation-hardened cover glass, making it suitable for demanding orbital and deep-space missions.
Key Features of CIC GaAs Solar Cell 3GA-2
Triple Junction Structure: GaInP₂/GaAs/Ge for high conversion efficiency
Proven Radiation Resistance: Qualified under 1×10¹⁵e/cm² radiation fluence
Customizable Efficiency: Options for 28%, 30%, or 32% average efficiency
Shadow Protection: Discrete Si bypass diodes protect against reverse bias failures
Robust Build: KFB120 cover glass and durable interconnects for space environments
1. Design and Mechanical Data
Base Material
GaInP₂/GaAs/Ge on Ge substrate
AR-coating
TiOx/Al O₃
Dimensions
(60.65mm±0.1mm) × (40.15mm±0.1mm)
Cell Area
24.0cm²
Weight
(125±12)mg/cm²
Thickness
0.30mm±0.05mm
Coverglass
KFB 120
Coverglass thickness
120±20μm
Interconnectors
Kovar, silver coated
Interconnector thickness
35μm
2. Typical Electrical Parameters (SCA)
Average Open Circuit Voc (mV)
2740
Average Short Circuit Jsc (mA/cm²)
17.3
Voltage @ Max. Power Vm (mV)
2430
Current @ Max. Power Im (mA/cm²)
16.6
Average Efficiency ηave (1353W/m²)
30%
3. Radiation Degradation ( Fluence 1MeV )
Parameters
1×10¹⁴e/cm²
5×10¹⁴e/cm²
1×10¹⁵e/cm²
Im/Im₀
0.98
0.96
0.93
Vm/Vm₀
0.96
0.92
0.90
Pr/Pm₀
0.94
0.88
0.84
4. Acceptance Values (SCA )
Voltage Vₗ
2300mV
Min. average current Iₗmin @ Vₗ
500mA
Min. individual current Iₗave @ Vₗ
480mA
5. Shadow Protection(Discrete bypass diode)
Vforward (620mA)
≤1.0V
Ireverse (4.0V)
≤0.2mA
6. Temperature Coefficients (20℃～65℃)
Parameters
BOL
1 MeV, 5×10¹⁴e/cm²
1 MeV, 1×10¹⁵e/cm²
Jsc (µA/cm²/℃)
11.0
10.0
13.0
Voc (mV/℃)
-5.9
-6.1
-6.3
Im (µA/cm²/℃)
9.0
9.5
15.0
Vm (mV/℃)
-6.0
-6.2
-6.5
7. Threshold Values
Absorptivity
≤ 0.92
Pull Test (at 45°)
≥0.83N/mm²
Status
Qualified
IV Test Standard: AM0, 1sun, 1353W/m2, 25℃.
All of our space solar cells incorporate the latest triple-junction technology, featuring III-V layers grown on a Germanium substrate. Leveraging decades of expertise in the space market, our entire product range is designed to meet the highest standards of performance and reliability. Beyond our standard offerings, we also provides tailored solutions to meet specific customer requirements, ensuring flexibility and customization for unique project needs.
Qualified for Space: Reliability That Powers Missions
Our CIC Space Solar Cells are qualified for performance, environmental resistance, and mechanical strength. With threshold values such as ≤0.92 absorptivity and ≥0.83N/mm² pull strength, this product meets the strictest aerospace standards.
If you’re looking for a high-performance CIC GaAs Solar Cell with proven flight heritage and customizable parameters, 3GA-2 is your ideal solution.
Explore more Space Solar Cell Products for diverse sizes, configurations, and mission types.
For more information, please visit our website.
