HARDWARE / PRODUCTUpdated 25 Jul 2026

BGT-X5

Busek Co.
BGT-X5

Busek's BGT-X5 is a 0.5N green monopropellant thruster system delivering 565 N-s of total impulse within a 1U CubeSat volume, using the stable ASCENT propellant as a hydrazine alternative.

Typed specifications45 values

Discloses 7 of 10 fields engineers filter by in this category (category median 3).

Propulsion family
chemical
datasheet p.1
Mass
1.5 kg
BOL · datasheet p.2 1.5 kg system mass, BOL
Thrust
500 mN
nominal · datasheet p.1 500 mN nom.  |  500 mN nominal  |  500 mN nom.  |  500 mN nominal  +1
Envelope (L×W×H)
10x10x10cm
external · datasheet p.2
Specific impulse
220 s
min · datasheet p.2 225 s max  |  220–225 s  |  220 s min  |  225 s max
Total impulse
565 N·s
datasheet p.1 565 N·s
Propellant
ASCENT
datasheet p.2 other ASCENT propellant  |  CO2 Pressurant
Supply voltage
12 V
nominal · datasheet p.2 6 V min  |  16 V max  |  6–16 V Input Voltage  |  6–16 V nominal 12V  +1
Power consumption
20 W
product page
Data interface
RS-485
datasheet p.1 RS-485
Thruster technology
monopropellant green (ADN or HAN)
green monopropellant (ASCENT) · datasheet p.1
Volume
1 U
datasheet p.1 1 U
Min impulse bit
50 mN·s
datasheet p.1 50 mN·s min  |  50 mN·s
Feed / tank pressure
27.58 bar
nom. · approximately, at 500 mN / 220-225 s · datasheet p.1 27.58 bar  |  31.03 bar PLPS rechargeable feed pressure (cold CO2 gas generator)  |  31.03 bar
Satellite class
CubeSat
Cubesats and Smallsats · datasheet p.1 microsat 10-100 kg
Delta-v
146 m/s
4 kg CubeSat, 1U system · datasheet p.1
Reference spacecraft mass for delta-v
4 kg
CubeSat · datasheet p.1
Power processing unit included
yes
datasheet p.1
Ignition or start
catalytic
long-life catalyst reactor · datasheet p.1

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 supplier9 lines, in the manufacturer's own wording
Propellant
ASCENT
Thrust
500 mN nominal
Specific impulse
220-225 s
Total impulse
565 N-s
System power
20 W
Supply voltage
6-16 VDC
Nominal voltage
12 VDC
Interface
RS-485
System mass
1.5 kg BOL

About

The BGT-X5 is a monopropellant thruster system for high performance space applications, producing 0.5N (500 mN nominal) thrust using a highly stable ‘green’ propellant (ASCENT) as an alternative to hydrazine. The thruster features a patented long-life catalyst reactor, a high temperature thruster body, and a low-power piezo microvalve with flight heritage. The system includes a novel propellant tank and a patent-pending Post-Launch Pressurization System (PLPS) that together enable a compact, high-thrust propulsion solution for CubeSats and Smallsats within a 1U volume. The system easily scales by increasing the propellant tank size to support higher total impulse applications, and multiple systems can be integrated onto a single spacecraft for modular attitude control and translational thrust. The ASCENT propellant offers 10% higher specific impulse and 45% greater density than hydrazine, which is highly toxic. Replacing hydrazine with ASCENT results in a smaller, lighter propellant tank and lower wet mass for a given mission. The stable propellant also reduces transportation costs and ground handling time, and allows for simplified storage due to its lower vapor pressure. Based on system performance, operational responsiveness, size, and safety features, the BGT-X5 is positioned as a leading choice among small monopropellant propulsion solutions.

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: www.busek.com ↗

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