3U CubeSat Bus
C3S LLC
Highly dependable 3U CubeSat platform with flight heritage (RadCube, 2021), featuring exceptional thermal design, 58 Wh battery, 20 W peak power, and 5-year LEO lifetime.
Technical specifications
- Dimensions
- 100 x 100 x 340.5 mm (366 mm for 3U Plus)
- Mass (bus only)
- 3.3 kg
- Battery Capacity
- 58 Wh (90% SOC)
- Platform Avg Power
- 4.5 W
- Platform Peak Power
- 20 W
- Payload Volume
- 1.25-1.4 U
- Payload Avg Power
- up to 20 W
- Communications
- 399-401 MHz, OOK/FSK/GFSK, up to 150 kbps
- Pointing Accuracy
- 2 deg
- Design Lifetime
- 5 years (LEO)
- OBC
- ARM Cortex-M7, 300 MHz
About
The C3S 3U CubeSat Bus is a highly dependable platform with unique radiator design and exceptional thermal performance. Flight-proven on RadCube (2021). Features 58 Wh battery capacity, 3 regulated power buses (3.3 V, 5 V, 9.9-12.6 V), 2 CAN command buses, 4 M-LVDS data buses, 399-401 MHz communications, and 2 degree attitude pointing accuracy. ECSS-based subsystems throughout. 32% higher payload power availability vs. market average. 5-year LEO design lifetime.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
