XTJ Prime Solar Cell
Spectrolab
Spectrolab's proven heritage triple-junction solar cell with 30.7% average BOL efficiency, dual-qualified under AIAA-S111 and AIAA-S112, available in sizes from 26 to 84 cm².
Technical specifications
- BOL efficiency (average)
- 30.7%
- EOL efficiency at 1e15 fluence
- 26.7%
- Cell technology
- Heritage upright lattice matched XTJ triple-junction
- Qualification standards
- AIAA-S111 and AIAA-S112 (dual qualified)
- Available sizes
- 26–84 cm²
- Flight heritage
- Hundreds of satellites and spacecraft
- Available forms
- Bare cells or CIC assemblies
About
The XTJ Prime is Spectrolab’s proven heritage triple-junction solar cell delivering 30.7% average beginning-of-life efficiency and 26.7% EOL performance at 1e15 1 MeV electron fluence. Based on the upright lattice-matched XTJ structure, it offers decades of accumulated flight heritage across commercial, civil, and defense satellite programs worldwide.
Dual-qualified under both AIAA-S111 and AIAA-S112 standards, the XTJ Prime provides flexible sizing options from 26 to 84 cm² to accommodate a wide variety of spacecraft panel designs. The dual qualification enables broader application across different program requirements. Available as bare cells or complete CIC assemblies with space-qualified coverglass, bypass diode, and interconnects. With over 500 spacecraft powered by Spectrolab cells, the XTJ Prime is a trusted choice for missions requiring proven, reliable solar power generation.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.