HARDWARE / PRODUCTAdded 25 Aug 2026

BGT-X5 Green Monopropellant Thruster

Busek Co.
BGT-X5 Green Monopropellant Thruster

Busek's Green Monopropellant Thrusters feature a patented monolithic catalyst that is efficient yet extremely robust, with available thruster sizes ranging from 0.1N to 22N class.

Typed specifications22 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
system mass BOL · datasheet p.2
Thrust
500 mN
nom. · datasheet p.2 500 mN
Envelope (L×W×H)
10x10x10cm
datasheet p.2
Specific impulse
220–225 s
datasheet p.2
Total impulse
565 N·s
datasheet p.2
Propellant
AF-M315E (HAN)
product page other ASCENT
Supply voltage
12 V
nom. · datasheet p.2 6–16 V
Power consumption
20 W
product page
Data interface
RS-485
datasheet p.2
Thruster technology
monopropellant green (ADN or HAN)
green monopropellant (ASCENT) · datasheet p.1
Volume
1 U
10x10x10cm external tuna can volume of 3U CubeSat launcher · datasheet p.2
Min impulse bit
50 mN·s
min · datasheet p.2
Feed / tank pressure
27.58 bar
approximately, at 500 mN / 220-225 s · datasheet p.1 31.03 bar PLPS rechargeable feed pressure via cold CO2 gas generator
Satellite class
CubeSat
Cubesats and Smallsats · datasheet p.1
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
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 supplier7 lines, in the manufacturer's own wording
System Power
20 W
Input Voltage
6-16 VDC (nominal 12 V)
Interface
RS-422
Propellant
ASCENT
Thrust
500 mN nominal
Specific Impulse
220-225s
Total Impulse
565 N-s

About

Busek develops leading edge propulsion to enable a new class of spacecraft missions with its Green Monopropellant Thrusters. These thrusters feature a patented monolithic catalyst that is efficient yet extremely robust. Available thruster sizes range from 0.1N to 22N class, with demonstrated vacuum specific impulse >230 sec. The default green monopropellant of choice is ASCENT propellant, which has 10% higher specific impulse and 45% greater density than hydrazine, a highly toxic monopropellant. Replacing hydrazine with ASCENT translates to a smaller wet mass and volume for a given mission. The stable propellant reduces transportation costs and ground handling time. Busek’s 0.5N BGT-X5 system features a novel post-launch pressurization system, allowing for unpressurized integration and launch. Rechargeable pressurization on-orbit allows for consistent performance versus traditional blow-down systems. The system uses a highly stable, ‘green’ propellant (ASCENT), which offers 10% higher specific impulse, and 45% greater density than hydrazine, a highly toxic monopropellant. Replacing hydrazine with ASCENT translates to a smaller, lighter propellant tank and lower wet mass for a given mission. The stable propellant reduces transportation costs and ground handling time, and allows for simplified storage given its lower vapor pressure. Based on system performance, operational responsiveness, size, and safety features, the BGT-X5 is the clear choice among small monopropellant solutions.

Documentation

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

Source: www.busek.com ↗

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