Direct Access to the

Glossary: 0#  A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z
Companies: 0# A B C D E  F G H I J K L M N O P Q R S T U V W X Y Z

Capacitor in the space industry context refers to an essential electronic component used to store and manage electrical energy in spacecraft, satellites, and various space systems. Capacitors play a crucial role in ensuring stable and reliable operation of electrical circuits, energy storage, and power distribution in the challenging environment of space.

Application Areas:

  1. Energy Storage: Capacitors are used to store electrical energy generated by solar panels or other power sources in spacecraft. They release stored energy when needed to ensure continuous operation during periods of shadow or high power demand.

  2. Power Conditioning: Capacitors help smooth and condition electrical power, reducing voltage spikes and ensuring a consistent power supply to sensitive instruments and equipment on board.

  3. Signal Filtering: In communication systems, capacitors are used for filtering and stabilizing signals, reducing interference and noise that can disrupt data transmission.

  4. Electronic Timing: Capacitors are employed in timing circuits and oscillators, ensuring precise synchronization and control of various spacecraft systems and instruments.

  5. Pulse Shaping: In scientific instruments and sensors, capacitors assist in shaping and generating specific pulse patterns or waveforms for data collection and analysis.

National and International Examples:

  1. International Space Station (ISS): The ISS employs capacitors in its electrical systems to store energy, regulate power distribution, and maintain a stable electrical environment for experiments and equipment.

  2. Mars Rovers (e.g., Curiosity and Perseverance): Capacitors are integrated into the power management systems of Mars rovers to store energy from solar panels and provide bursts of power during mobility and instrument operation.

  3. Hubble Space Telescope: Capacitors help ensure a stable power supply and filter signals for the Hubble Space Telescope's sensitive instruments, enabling its groundbreaking astronomical observations.

  4. Communication Satellites: Communication satellites in geostationary orbit rely on capacitors for energy storage and power conditioning to maintain uninterrupted services.


  1. Space Radiation: High-energy particles in space can affect capacitors, leading to radiation-induced degradation or failure. Shielding and radiation-hardened components are used to mitigate this risk.

  2. Temperature Extremes: Capacitors must withstand extreme temperature variations in space, from the cold of deep space to the intense heat of solar exposure, which can impact their performance and longevity.

  3. Electrical Failures: Capacitor failures can result in electrical issues, including voltage instability and potential damage to sensitive electronic systems.

  4. Limited Lifespan: Capacitors have a finite lifespan and can degrade over time, potentially affecting the long-term reliability of space systems. Proper maintenance and redundancy strategies are employed to address this.

History and Legal Basics:

Capacitors have been used in space technology since the early days of space exploration. The aerospace industry adheres to international standards and regulations governing the use of electronic components in space systems. These standards ensure that capacitors and other electronic components meet rigorous reliability and safety requirements.

Examples of Sentences:

  • The spacecraft's capacitor stored excess energy generated by its solar panels.
  • Engineers are conducting tests to assess the performance of the capacitors in the satellite's power system.
  • The capacitor's role in the communication module is to filter out unwanted signals.
  • The rover's power management system relies on a high-capacity capacitor.

Similar Terms and Synonyms:

  • Electrical condenser
  • Energy storage device
  • Power capacitor
  • Electrical energy storage unit
  • Electronic charge reservoir


In the space industry, a capacitor is an electronic component used for energy storage, power conditioning, signal filtering, and precise timing in spacecraft and space systems. Capacitors are critical for maintaining stable electrical environments, ensuring power reliability, and supporting various instruments and equipment. They are used in a wide range of space missions, including the International Space Station, Mars rovers, and communication satellites. However, they are susceptible to space radiation, temperature extremes, and limited lifespans, necessitating careful engineering and reliability measures. Capacitors have a long history in space technology and are subject to international standards to ensure their reliability and performance in the challenging environment of space.


No comments

Do you have more interesting information, examples? Send us a new or updated description !

If you sent more than 600 words, which we can publish, we will -if you allow us - sign your article with your name!

Related Articles

Power ■■■■■■■■■
In the aerospace context, power refers to the ability of an aircraft or spacecraft to generate and control . . . Read More
Panel at■■■■■■■■
In an industrial or industry context, a panel refers to a flat and usually rectangular component, typically . . . Read More
Electron ■■■■■■■■
. . . Read More
Connector ■■■■■■■■
In the aerospace industry, a connector is used to join two or more components together in a secure and . . . Read More
Memory ■■■■■■■■
. . . Read More
PCBA ■■■■■■■
"PCBA" stands for "printed circuit board assembly," and it refers to a type of electronic component that . . . Read More
Rad-hard ■■■■■■■
Rad-hard is an ability after of radiation hardening which is the process of making electronic components . . . Read More
PWB at■■■■■■
PWB, standing for Printed Wiring Board, is a term used in the electronics manufacturing industry to refer . . . Read More
Fralock ■■■■■■
Fralock supplies custom products approved for space flight, including etched foil flat cables for power . . . Read More
Heat ■■■■■■
In thermodynamics, heat is defined as the form of energy crossing the boundary of a thermodynamic system . . . Read More