HARDWARE / PRODUCTUpdated 24 Jul 2026

BHT-20K

Busek Co.
BHT-20K

The BHT-20K is Busek's highest power Hall thruster to date, designed for high-power space missions and capable of delivering 1 Newton of thrust.

Typed specifications32 values

Discloses 8 of 10 fields engineers filter by in this category (category median 3).

Propulsion family
electric
datasheet p.1
Mass
45 kg
Assembly Mass · datasheet p.1
Thrust
1 006 mN
Nominal · datasheet p.1 1 000 mN 1 Newton  |  1 006 mN nom.
Specific impulse
2 515 s
Nominal · datasheet p.1 2 515 s nom.
Total impulse
35 000 000 N·s
min · predicted (> 35) · datasheet p.1
Propellant
Xenon
datasheet p.1 Krypton  |  Iodine
Supply voltage
450 V
Nominal · datasheet p.1 700 V max · discharge potentials  |  450 V nom.
Power consumption
20 000 W
nom. · datasheet p.1 20 000 W  |  5 W min · operating range  |  20 000 W max · operating range
Thruster technology
Hall effect
datasheet p.1
Propellant mass (full load)
1 000 kg
min · estimated throughput · datasheet p.2
Max propellant throughput
1 000 kg
min · estimated, much greater than 1000 kg · datasheet p.2
Power at thrust
20 000 W
nom. · discharge power · datasheet p.1 20 000 W Discharge Power  |  5 000 W min  |  5 000 W throttling range  |  22 000 W throttling range max  +1
PPU output power
20 000 W
Discharge Power · datasheet p.1 20 000 W max  |  5 000 W min
Discharge (anode) voltage
450 V
nom. · datasheet p.1 700 V max · discharge potentials up to 700 V

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
Discharge power
20,000 W
Supply voltage
450 VDC
Thrust
1006 mN
Propellants
Xenon, Krypton, Iodine
Specific impulse
2515 seconds
Demonstrated impulse
Pending
Predicted total impulse
>35 MN⋅s

About

The BHT-20K is Busek’s most powerful Hall thruster, representing a significant advancement in Hall Thruster technology with over 100 times the power of their first model. It features an innovative 2.8 cm center-mounted cathode and a highly mass-efficient magnetic circuit design, offering outstanding specific impulse and thrust in a lightweight and compact package. The thruster has been tested at the Arnold Engineering Development Center (AEDC) and the NASA Glenn Research Center (GRC), demonstrating throttling capabilities over an input power range from 5kW to 22 kW. It is designed to provide high-power space propulsion for missions to destinations including the Moon, Mars, Venus, or beyond. The BHT-20K can operate with Xenon, Krypton, and Iodine propellants.

Documentation

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

Source: www.busek.com ↗

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