SADM-200
Comat
The SADM-200 is a compact Solar Array Drive Mechanism (SADM) developed by COMAT for small satellites, capable of handling up to 200W per solar array wing with integrated slip rings and plug & play electronics.
Key figurescomparable across the catalogue
- Mass
- 6.65 kg
- Power
- 200 W
- Design life
- 5 years
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
- Power (qualified)
- 200 W at 28 V
- Power (transfer capability)
- 400 W at 50 V
- Torque
- 350 mNm
- Pointing accuracy
- 3°
- Communication interface
- RS 485
- Design life
- 5 years LEO
- Qsl
- 25 g
- Random vibration
- 20.8 g
- Shock
- 1,000 g/2,000 Hz
- Communication protocol
- NSP
- Voltage range
- 14 V [10 V;18 V]
- Supply voltage (max)
- up to 28 V
- Power (under 14V)
- 100 W
- Power (under 28V)
- 200 W
- Power (under 50V)
- 400 W
- Power lines
- 14 independent (+2 data and 1 ground)
- Radiation tolerance
- 20Krad
- Tests
- Vibration, Thermal cycling
About
The SADM-200 (Solar Array Drive Mechanism) is a compact mechanism developed by COMAT specifically for small satellites. It is designed to accommodate solar array wings with a power output of up to 200W, and it features an integrated slip ring. The equipment is delivered with embedded plug & play electronics, simplifying integration. While qualified for 200W at 28V, it can transfer up to 400W at 50V. This SADM is presented as the only European off-the-shelf solution for satellite platforms requiring higher power. A second version, SADM 1500, is currently under development, aiming to handle 1500W per solar array wing, with qualification expected for S1 2025. The SADM-200 optimizes the exposure of solar panels, particularly benefiting Earth observation platforms. Its development leverages existing ‘bricks’ developed by COMAT. Key features include a torque of 350 mNm, a pointing accuracy of 3 degrees, RS 485 communication, and a design life of 5 years in LEO. It is qualified for various environmental conditions including QSL (25g), Random vibration (20.8g), and Shock (1,000g/2,000Hz). It uses the NSP communication protocol and supports 14 independent power lines (+2 data and 1 ground). Radiation tolerance is 20Krad. The product has undergone vibration and thermal cycling tests.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.