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capacitor

vr.tr.capacitor · thing-q5322

Let an agent explain capacitors and their types, relay principles, ratings and applications from electronics references, describe safety and selection, and distinguish capacitors from batteries, inductors and the LEDs misfiled under this entry.

Thing Registry Physical world and living systems PHY.OBJ
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Understand What a capacitor is.

Principle

Principle.

Principle

Principle.

  1. How does a capacitor store energy in an electric field, and what determines capacitance? definition
  2. Is the question about a capacitor, a battery, an inductor or an LED? boundary

Types

Types.

Types

Types.

  1. How do ceramic, film, electrolytic, tantalum and supercapacitors differ? definition
  2. Which entry fits the specific type? action
Use Applications and selection.

Applications

Applications.

Applications

Applications.

  1. How are capacitors used in filtering, decoupling, timing, energy storage and power factor correction? provenance
  2. Which references are standard? provenance

Selection

Selection.

Selection

Selection.

  1. How are capacitors selected by capacitance, voltage rating, ESR, tolerance and temperature? action
  2. Which entry fits the specific parameter? action
Safety Safety and reliability.

Safety

Safety.

Safety

Safety.

  1. What hazards do charged and failing capacitors pose, and what standards apply? provenance
  2. Which sources are cited? provenance

Reliability

Reliability.

Reliability

Reliability.

  1. Why do electrolytic capacitors fail, and how is reliability assessed? provenance
  2. Which entry fits capacitor plague? action
Context History and future.

History

History.

History

History.

  1. How did capacitors develop from the Leyden jar to modern components? provenance
  2. Which entry fits the history of the capacitor? action

Future

Supercapacitors and research.

Future

Future.

  1. How are supercapacitors and new dielectrics advancing energy storage? provenance
  2. Which entry fits supercapacitor? action

Classifiers Filled

Family
Thing Registry
Category
Physical world and living systems
Entry kind
thing
Plane
PHY
Domain
PHY.OBJ
Other names and narrower kinds
light-emitting diode, light-emitting capacitor, High-power LED, RGB light-emiting diode, Emitter On Board, PLED, infrared LED, resonant-cavity light emitting diode, SMD LED module, Light-emitting diodes (COB), white light-emitting diode, RGB-LED-TH

What it is Filled

A passive two-terminal electronic component that stores energy in an electric field between two conductors separated by a dielectric, characterised by capacitance in farads, in types such as ceramic, film, electrolytic, tantalum and supercapacitors, used for filtering, energy storage, timing, coupling and power factor correction; capacitors are ubiquitous in electronics and power systems, and the registry entry also carries aliases for light-emitting diodes and related devices that are a different component.

Why it exists Filled

Let an agent explain capacitors and their types, relay principles, ratings and applications from electronics references, describe safety and selection, and distinguish capacitors from batteries, inductors and the LEDs misfiled under this entry.

Distinguishing features Filled

  • Electric field storage
  • Frequency-dependent impedance
  • Many dielectric types
  • Ubiquitous use

What robots and AI may and may not do Filled

Must not

  • Touch or let people touch high-voltage capacitors before they are safely discharged.
  • Use capacitors above their rated voltage or temperature.
  • Confuse capacitors with batteries or LEDs in parts lists.
  • Dispose of capacitors containing hazardous substances with general waste.

Only with a human decision

  • Working inside equipment with high-voltage capacitors, which needs a qualified person.

May

  • Explain capacitor types, ratings and uses from electronics sources.
  • Select or test capacitors in circuits the agent is authorized to work on.
  • Report bulging, leaking or failed capacitors to the equipment owner.

Moral aspects Filled

  • Stored charge in large capacitors can kill even when equipment is switched off.
  • Old capacitors can contain hazardous chemicals.

Who is affected

  • Technicians and hobbyists
  • Equipment users
  • Recycling workers

Owners Filled

Steward

The owner of the equipment it is fitted in.

Links to other meta-models Filled

parent

  • Q11653 - registry parent class
  • Q233003 - registry parent class
  • Q6867168 - registry parent class

related

  • passive electronic component - in registry terms
  • one-port circuit - in registry terms
  • electronic component - in registry terms
  • light-emitting diode - misfiled as an alias

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.capacitor
  • Wikidata: Q5322 (https://www.wikidata.org/wiki/Q5322)
  • IEC: 60384 fixed capacitors for electronic equipment
  • HS: 8532 electrical capacitors

Direct properties required Filled

  • capacitance formula: C = epsilon A / d formula - parallel plate
  • energy stored: E = (1/2) C V^2 formula
  • supercapacitor capacitance: up to thousands of farads

Recognition required Filled

  • Two-terminal charge-storing component
  • Ceramic, film, electrolytic, tantalum, supercapacitors
  • Batteries store chemical energy; inductors store magnetic energy; LEDs emit light and are a different component
  • A small cylinder, disc or chip with two leads.

Capabilities and actions required Filled

  • explain principles and types
  • relay ratings and applications
  • describe safety and selection
  • distinguish from other components

Hazards and failure modes required Filled

  • Electrolytic capacitor failure and leakage
  • Stored charge shock hazards in high-voltage capacitors
  • Confusing capacitors with batteries or LEDs
  • Registry aliases naming LEDs

Standards and interfaces required Filled

  • IEC 60384 and related component standards
  • Safety standards for mains-rated X and Y capacitors
  • RoHS and REACH material rules

Context of use required Filled

  • Storing charge and shaping signals in circuits.
  • ceramic capacitors
  • film capacitors
  • aluminium and tantalum electrolytic capacitors
  • supercapacitors and ultracapacitors
  • variable and trimmer capacitors
  • power capacitors for grids
  • light-emitting capacitors as a novelty device distinct from LEDs

Sources Filled

  1. Wikidata item Q5322: capacitor - identity and sense of the item
  2. Wikipedia: Capacitor - general description of the item

Open questions

  • Should supercapacitor and electrolytic capacitor be separate primary entries?
  • How should electronics standards be linked?
  • The registry entry has merged aliases naming light-emitting diodes; should they be removed?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q5322/spec.json