XTE-LILT Solar Cell
Spectrolab
Spectrolab's triple-junction solar cell optimized for Low Intensity Low Temperature conditions, achieving 37% efficiency at Jupiter for deep space missions to outer planets.
Typed specifications10 values
Discloses 5 of 7 fields engineers filter by in this category (category median 2).
- Cell efficiency
- 31.6 % BOL 1 AU · datasheet p.1 37 % BOL 5.5 AU
- Array configuration
- other Space Qualified Triple Junction Solar Cell (bare cell product) · datasheet p.1
- Cell type
- triple-junction GaAs Space Qualified Triple Junction Solar Cell · datasheet p.1
- Cell part number
- Spectrolab XTE-LILT (Low Intensity Low Temperature) datasheet p.1
- Open-circuit voltage at the panel output (Voc)
- 2.76 V datasheet p.1
- Max-power voltage at the panel output (Vmp)
- 2.46 V datasheet p.1
- Flight heritage
- 20+ years of heritage 3J devices datasheet p.1
- Cell area
- 27 cm² cell size of the datasheet parameters · datasheet p.1
- Power temperature coefficient
- -5.7 %/°C datasheet p.2
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier7 lines, in the manufacturer's own wording
- BOL efficiency (1 AU)
- 32%
- Efficiency at jupiter lilt conditions
- 37%
- Cell technology
- GaInP/GaAs/Ge lattice matched triple-junction (3J)
- Qualification standard
- AIAA-S111-2014
- Target missions
- Deep space (Jupiter and beyond, LILT conditions)
- Flight heritage
- NASA New Horizons, Juno, Europa Clipper class missions
- Available forms
- Bare cells or CIC assemblies
About
The XTE-LILT (Low Intensity Low Temperature) is a GaInP/GaAs/Ge lattice-matched triple-junction solar cell specifically engineered for deep space missions where solar intensity is greatly reduced and operating temperatures are extremely cold, such as at Jupiter (0.037 AM0 solar intensity) and beyond.
Achieving 37% efficiency at Jupiter LILT conditions — significantly higher than its 32% BOL efficiency at 1 AU — it provides exceptional power generation far from the Sun. This counter-intuitive efficiency gain at LILT conditions is a key advantage for deep space mission planners. Fully qualified under AIAA-S111-2014. Spectrolab’s LILT cells have heritage on flagship NASA deep space missions including New Horizons, Juno, and the Europa Clipper. Available as bare cells or CIC assemblies.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.