How green is my satellite propellant? asks ESA

The European Space Agency (ESA) has highlighted progress towards the use of a ‘greener’ satellite propellant to replace the hydrazine currently used by thrusters. Following work with the UK company European Astrotecht, it has reported on an eight-month test cycle for a number of candidate propellants. The tests (pictured) – reportedly the equivalent of 5.33 ...

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Littelfuse extends reed relay voltages

Littelfuse has expanded its reed relay product portfolio by extending voltage capabilities to include AC ratings, supports AC or DC loads up to 300 Vdc, and provides input/output isolation voltage 2500 VRMS. These miniature reed relays are available in single In-line (SIL) and dual-in-line (DIL) packages. The relays offer: Capable of switching speeds up to ...

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