ACSS RH
Solar MEMS Technologies
Radiation-hardened Advanced Coarse Sun Sensor qualified to 200 krad for MEO and GEO missions.
Technical specifications
- Interface
- Analog
- Flight mode
- Yes
- Engineering mode
- Yes
- Field of View
- ±60°, customizable
- Supply voltage
- 15–30 V, 3 mA
- Operating temperature
- -45°C to +85°C
- Radiation test
- 200 krad (gamma), 8×10¹¹ 10 MeV protons
- Mechanical test
- Shock 2000 g; 18.3 g @ 20–2000 Hz random
- Endurance test
- 600 cycles -55 to +105°C; 2000 h at 125°C
- EMC/ESD
- ECSS-E-ST-20-07C, MIL-STD-461F
- Flight heritage
- Flight-proven since 2019, hundreds of units delivered
About
The ACSS RH (Advanced Coarse Sun Sensor, Radiation Hardened) is the radiation-hardened variant of Solar MEMS’s flight-proven ACSS coarse sun sensor. It offers the highest reliability and radiation hardness for the most demanding LEO, MEO and GEO missions, tested to 200 krad (gamma) and 8×10¹¹ 10 MeV protons. The CSS technology has flight heritage since 2019 with hundreds of flight units delivered. The ACSS RH operates from a higher voltage supply (15–30 V) for compatibility with spacecraft power buses, and meets ECSS and MIL-STD-461F EMC standards. Endurance testing covers 600 thermal cycles (-55 to +105°C) and 2000 hours at 125°C.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.
