SPT-100 family

EDB Fakel's flight-proven 100-millimetre stationary-plasma Hall-thruster family and the technical basis for later international derivatives. NASA JPL reports nominal 1.35 kW input power, about 1,600 s specific impulse, and more than 9,000 hours of lifetime for the flight-proven SPT-100; the family record preserves the broader 1,600–1,672 s and 0.07–0.08 N range. Lifecycle remains unknown because this evidence establishes flight use and technical lineage, not whether the canonical SPT-100 designation remains in current production rather than later derivatives.