• GEO and MEO platforms — radiation lifetime and efficiency per area over long missions
• Long-duration LEO, where silicon degradation would eat into the power margin
• Envelope-limited buses — more power from the same stowed volume and panel area

The GaAs Solar Wing is Soltrac's deployable wing fitted with triple-junction GaAs cells instead of silicon. One to five panels on the same yoke and hinges as the Si-Core Wing, or attached directly to the satellite structure, for missions that need more power per area or have to live with a harsher radiation environment — GEO and MEO platforms, long-duration LEO where silicon degradation would eat into the power margin, and envelope-limited buses that need more power from the same stowed volume.

Each panel carries ES-30TJSC-80 or ES-30TJSC-30 CICs (cover glass, interconnectors, bypass diode) welded into series strings on the aluminium honeycomb sandwich panel. Panels fold face-to-face into a flat launch stack and deploy in sequence. Substrate, hinges, hold-down and release, yoke, harness and strings are delivered as one unit. Triple-junction CICs at about 30 % BOL efficiency give roughly 1.7 × the power per area of silicon.

Number of panels, cell type and string layout, hinge and root interfaces, harness and connectors are defined together with you for your mission and bus; send us your bus and envelope, power budget per spacecraft, bus voltage, orbit, lifetime and number of spacecraft, and we come back with a proposal, budgetary pricing and lead time.

Talk to our sales team: www.soltrac-space.com/products/gaas-wing

• Number of panels per wing (1–5) and power per wing
• Mounting on a common yoke or directly to the satellite structure
• Cell type (ES-30TJSC-80 or -30) and string layout
• Hinge and root interfaces, bus voltage, harness and connectors

Built from flight-proven ES-30TJSC CICs (Everlight Space).

Cells welded into series strings on Soltrac's qualified stringing line in Berlin, each cell measured on the AM0 test bench, bypass diode per cell. Panels, hinges and hold-downs shared with the Si-Core Wing; tested inhouse: shaker, thermal vacuum and deployment on the anti-gravity rig.