IMT µSADA Miniaturized Solar Array Drive Assembly
IMT (Ingegneria Marketing Technologies)
ESA-funded miniaturized SADA for 6U/12U CubeSats with 6 triple-junction solar panels, 118W BOL output, ±0.3deg pointing, 250g drive unit mass, and CAN bus interface.
Technical specifications
- Compatible platforms
- ISIS/GomSpace 6U, 12U CubeSats
- Solar panels
- 6x triple-junction InGaP/GaAs/Ge, 100µm coverglass
- BOL wing power
- 118W at 25°C
- Bus voltage
- 31-54V (typ. 42V)
- Bus current
- 2.6-3.0A (typ. 2.8A)
- Pointing accuracy
- ±0.3 deg
- Pointing speed
- ±0.07 deg/s nominal, ±0.4 deg/s max
- Interface
- CAN Bus (I2C redundant), OMNETICS MICRO-D connectors
- Power input
- 5V
- Average power consumption
- 500 mW
- SADU mass
- 250 g
- SADU dimensions
- 88 x 101 x 15 mm
- SAWA mass (per wing)
- 1,190 g
- SAWA deployed size
- 710 x 324 x 11 mm
- Qualification
- 38,060 sweeps; >15 kRad(Si)
- Motor holding torque
- >150 mNm
- Max backlash
- 3 deg
About
The IMT µSADA is a miniaturized Solar Array Drive Assembly developed under ESA contract for 6U and 12U CubeSat platforms. Features six solar panels arranged in two wings of three panels each for sun-tracking power generation. Mechanically compatible with ISIS and GomSpace 6U/12U structures. The drive unit (SADU) has a mass of 250 g and dimensions of 88x101x15 mm; each solar wing (SAWA) weighs 1,190 g deployed at 710x324x11 mm. Power input is 5V for the main unit, with an average consumption of 500 mW. The solar wing delivers 118W BOL power at 31-54V bus voltage (typically 42V), drawing 2.6-3.0A. Triple-junction InGaP/GaAs/Ge cells with 100-micron coverglass. Pointing accuracy is ±0.3 deg with CAN bus interface and I2C redundant. Qualified to 38,060 deployment sweeps and >15 kRad radiation tolerance.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
