HARDWARE / PRODUCTAdded 25 Aug 2026

77cm 2 Class (SuperCell) Triple Junction Solar Cell

Spectrolab
77cm 2 Class (SuperCell) Triple Junction Solar Cell

Spectrolab's heritage 3J product, the XTJ Prime, offers 30.7% average BOL efficiency and is qualified under AIAA-S111 & AIAA-S112 standards.

Key figurescomparable across the catalogue

Largest dimension
840 mm

Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.

As published by the supplier

Average BOL efficiency
30.7%
EOL efficiency (1E15 1MeV electron)
26.7%
Sizes available
26-84 cm2

About

Spectrolab offers a range of GaInP/GaAs/Ge lattice matched 3J solar cells with efficiencies reaching 33%. All 3J technologies are fully AIAA S111 and S112 qualified. Spectrolab’s space solar cells can be purchased as bare cells or assemblies complete with space-qualified coverglass, bypass diode, and interconnects for welded connections between solar cells (CICs). The XTJ Prime is Spectrolab’s Heritage 3J Product, featuring 30.7% Average BOL efficiency and qualified under AIAA-S111 & AIAA-S112 standards. It utilizes a heritage upright lattice matched XTJ structure and offers 26.7% EOL efficiency at 1E15 1MeV electron. Multiple sizes are available, ranging from 26-84 cm2.

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: www.spectrolab.com ↗

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