PSR 100V MKII
Airbus Defence and Space
A fully qualified, fault-tolerant power supply regulator developed by Airbus Defence and Space for telecom satellites under an ESA initiative, handling up to 23kW at 100V.
Typed specifications60 values
Discloses 9 of 14 fields engineers filter by in this category (category median 7).
- Mass
- 2 500 g datasheet p.2
- Total output power
- 1 500 W distributed power @ 38V (40A) · datasheet p.2 1 500 W max · Distributed Power
- Conversion efficiency
- 98 % energy transfer efficiency, > 98% · datasheet p.2 98 % min · Energy transfer efficiency
- Envelope (L×W×H)
- 395 x 125 x 65mm3 datasheet p.2
- Outputs (as printed)
- 22V-38V nominal voltage range datasheet p.1
- Supply voltage
- 22–38 V Bus Voltage (Battery follower) · datasheet p.2 22–75 V Input Solar Array Voltage
- Power consumption
- 1 500 W Distributed Power @ 38V (40A) · datasheet p.2 760 W Solar Array Power (20A charge) | 20 W max · Power dissipation | 20 W max · power dissipation, < 20W
- Data interface
- CAN Redundant CAN serial bus · datasheet p.1 CAN TM/TC interface (N&R) | CAN TM/TC interface CANBUS (N&R), redundant CAN serial bus
- Operating temperature
- -30–60 °C datasheet p.2
- Radiation tolerance (TID)
- compatible with typical 10 years LEO datasheet p.2
- Design lifetime
- 10 years typical 10-year lifetime in LEO; TID compatible with typical … · datasheet p.2 10 years typical, in LEO
- Unit type
- PCDU Power Conditioning and Distribution Unit · datasheet p.1
- Bus and outputs type
- unregulated battery bus Bus Voltage: 22-38V (Battery follower), unregulated 22V-38V n… · datasheet p.2
- Unregulated (battery) bus voltage
- 22 V min · nominal range · datasheet p.2 38 V max · nominal range | 22–38 V bus voltage, battery follower | 22–38 V unregulated
- Switchable outputs
- 35 distribution lines: 4 fuse lines, 6 fuse + switch, 25 fuse + … · datasheet p.2 25 Fuses + Double Switch lines | 6 Fuses + Switch lines | 4 Fuses lines
- Solar array inputs
- 6 6 DET sections · datasheet p.2
- Solar input voltage window
- 22 V min · datasheet p.3 75 V max | 22–75 V input solar array voltage
- Max solar input power
- 760 W solar array power, 6 sections · datasheet p.2
- Solar array regulation
- DET (direct energy transfer) SA Regulation: Direct Energy Transfer · datasheet p.2
- Protections
- Fuse protection lines up to 5Amp Class datasheet p.1 other distribution of switched, fuse protected power lines; fuse pr… | other Error Protection Mechanisms | latch-up free parts | other latch-up immune parts (design property, not a protection circ… +1
- Random vibration
- 18.3 g RMS in plane (//) · datasheet p.2 9.5 g RMS out of plane
- Flight heritage
- On orbit since February 2019 datasheet p.2
- Quasi-static load
- 18.3 g Vibration level · datasheet p.2 9.5 g Vibration level
- Shock qualification
- 1 000 g 10 000 Hz · datasheet p.2 1 000 g 10 000Hz
- Max current per output
- 40 A distributed power @ 38 V · datasheet p.2 40 A max · Battery Current I/F | 5 A max · fuse capability per line, up to 5 Amp class
- Battery voltage range accepted
- 22 V min · datasheet p.3 38 V max
- Max battery charge current
- 20 A Solar Array Power 760W (20A charge) · datasheet p.2 40 A max
- Max solar input current
- 3.5 A per DET section at BOL · datasheet p.2 20 A SA sections, (20A) as printed
- Housekeeping telemetry
- 51+51 Analog TM, 1+1 Digital TM, 47+47 Switch TC datasheet p.2
- Redundancy
- internally redundant (cross-strapped) CANBUS (N&R), two internal TM/TC interfaces · datasheet p.2
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier10 lines, in the manufacturer's own wording
- Power handling capacity
- up to 23 kW at 100 V
- Flight heritage
- Alphabus, E3000, E3000-NEO, Galileo; legacy from PSR 50 V with more than 80 units in flight on several platforms worldwide
- Mass
- 2.5 kg
- Dimensions
- 395 x 125 x 65 mm3
- Lifetime
- 10 years in LEO
- Operating temperature
- -30°C; +60°C
- Power
- 760 W (Solar Array Power)
- Supply voltage
- 22-75 V (Input Solar Array Voltage)
- Interface
- CANBUS (N&R)
- Efficiency
- > 98%
About
PSR 100V MKII is a fully qualified fault tolerant off-the-shelf power supply regulator (PSR) unit developed by Airbus Defence and Space for telecom satellites under an ESA initiative. It is part of Airbus’s line of power conditioning and distribution units optimised for space applications, ensuring reliable power conversion, regulation, and distribution to support efficient spacecraft and payload operation. These units offer high power density and superior efficiency, handling power levels up to several kilowatts across a range of input voltages, and are built to withstand the extreme conditions of space while meeting the highest standards of durability and performance. The PSR 100V MKII specifically has a power handling capacity of up to 23kW at 100V. It is flown on board Alphabus, E3000, E3000-NEO and Galileo, and has been selected by major operators as well as other spacecraft manufacturers. The unit takes legacy heritage from the PSR 50V, which has more than 80 units in flight on several platforms worldwide.
Documentation
- 2_6_PureLine_Pearl_V2_2022.pdf PDF source: airbus.web.factory.eu.airbus.com ↗
- PSR 100V_082023.pdf PDF source: www.airbus.com ↗
Need the full ICD, test reports or a specific revision? Ask the supplier directly.