1.5KW Power Control and Distribution Unit (PCDU)

Azista’s Power Control & Distribution Unit (PCDU) is a high-reliability power management solution designed for satellite platforms operating in Low Earth Orbit (LEO).

Capable of delivering up to 1.5 kW of output power with a customizable bus voltage range from 21 V to 33.6 V, the PCDU supports both 6-series and 8-series Li-ion battery configurations, ensuring compatibility across a wide range of small satellite architectures.

With advanced protection features such as over-current, over-voltage, under-voltage, and short-circuit protection, along 
with configurable LCLs up to 10 A, the PCDU enables safe and adaptable power distribution. Engineered for fault tolerance and long-term reliability, the unit guarantees single-point failure-free operation throughout its mission lifetime, making it an ideal solution for demanding small satellite missions in LEO.

General Specifications:

•  Mass:  4 kg

• Dimensions: 207 mm (L) x 185 mm (W) x 260 mm (H)

• Operating Temperature : -15°C to +60°C

• Orbit Parameter:  LEO: 400 km to 700 km

• Mission Lifetime :  7 years

Technical Specifications:

• Output Power : 500 W – 1.5 kW

• Battery String Configuration:  Li-Ion 6 Series – 8 Series

• Bus Voltage: 21 V – 33.6 V nominal 

• Regulated Power Supply :  10 Outputs @ 3.3 V, 20 Watts,  10 Outputs @ 3.3 V, 20 Watts,  10 Outputs @ 12 V, 90 Watts

• Unregulated Power Supply:  45 Outputs @ 10 Amps

• TM/TC Interface:  RS-422 & CAN

Key features

• 1.5 kW power output

• Modular architecture (500 W,1 kW,1.5 kW)

• 21 V – 33.6 V bus voltage

• 44 regulated voltage lines at 3.3 V, 5 V and 12 V

• 45 unregulated voltage lines

• Configurable LCLs up to 10 A

• TM/TC interface via UART / CAN

• Comprehensive power monitoring

• Fault-tolerant and highly reliable design