PASSIVE ELECTRONIC COMPONENTS
BASIC COMPONENTS | ELECTROMECHANICAL COMPONENTS |
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Passive electronic components are essential elements in electronic circuits that do not require an external power source to function. Unlike active components, they cannot amplify or control signals but instead serve to store, regulate, or dissipate energy. They are crucial for the stability and functionality of electronic systems.
Key Characteristics:
- Do not require external power to operate.
- Cannot amplify signals but may influence them by filtering, storing, or reducing energy.
- Generally simpler in construction compared to active components.
Common Types of Passive Electronic Components:
- Resistors:
- Restrict the flow of electric current.
- Measured in ohms (Ω).
- Used for current limiting, voltage division, and biasing circuits.
- Capacitors:
- Store electrical energy temporarily in an electric field.
- Measured in farads (F).
- Types include ceramic, electrolytic, film, and tantalum capacitors.
- Applications include filtering, timing, and energy storage.
- Inductors:
- Store energy in a magnetic field when current flows through them.
- Measured in henries (H).
- Common in power supplies, RF circuits, and filters.
- Transformers:
- Transfer electrical energy between circuits through electromagnetic induction.
- Used for voltage step-up/step-down and electrical isolation.
- Diodes (Passive Context):
- While diodes are active in nature, basic diodes like rectifiers can function passively to direct current flow.
- Crystals and Oscillators:
- Quartz crystals provide stable frequency control in electronic circuits.
- Used in clocks, radios, and microcontrollers.
- Filters:
- Combinations of resistors, capacitors, and inductors.
- Used to remove unwanted frequencies or noise from signals.
- Ferrite Beads:
- Suppress high-frequency noise in electronic circuits.
- Found in power supplies and communication lines.
Applications:
- Power Management: Resistors and capacitors regulate power flow in circuits.
- Signal Conditioning: Inductors and filters help maintain signal integrity.
- Energy Storage: Capacitors and inductors store and release energy as needed.
- Frequency Control: Crystals and oscillators stabilize circuit frequencies.
- Noise Suppression: Ferrite beads and filters reduce electromagnetic interference (EMI).
Passive components are the unsung heroes of electronics, working silently to ensure circuit reliability, efficiency, and performance.
Passive Products Parts:
Batteries
- Renata
- Good Future
- Leoch
- EPT Battery
- Power Kingdom
- Rayovac
- Eveready
- Gates
- Hyundai Trade Corp
- Nexcell
- Panasonic
- Sanyo
- Varta
- Duracell
- Energizer
Capacitors
- ASC Capacitors
- Cal-Chip
- Capax
- Cera-Mite
- Faratronic
- Fenghua
- Ge / Genteq
- Illinois Capacitor
- Johanson
- Koa
- Maida
- Meritek
- Nemco
- Novacap
- RG Allen
- Stelco
- Walsin
- Wima
- Sincera
- Thomson-CSF
- Voltronics
- Kamaya
- jb Capacitors
- ECi Capacitors
- Soshin
- Arcotronics
- CDE
- Murata
- ASC
- AVX
- Arcotronics
- BC Components
- Beyschlag
- Cal Chip
- Cera-Mite
- Dale
- Draloric
- Epcos
- Electrocube
- Elna
- Evox/Rifa
- Fenghua
- Hilton
- Hitachi
- Illinois Capacitors
- ITT Components
- Johanson Dielectrics
- Johanson Mfg
- Kemet
- Koa
- Mallory
- Matsuo
- Meritek
- Multicomp
- Nemco
- NIC Components
- Nichicon America
- Nissei
- Novacap
- Panasonic
- Roederstein
- Rohm
- Rubycon
- RG Allen
- Samwha
- Sanyo
- Sfernice
- Siemens
- Sprague
- Stelco
- Syfer
- TDK
- Teapo
- Tacate
- TPC
- United Chemi-Con
- Vishay
- Vitramon
- Wima
- Yageo
- Nesscap
Crystal/Oscillators
- BeckElec
- Golledge
- WTL Crystals
- NDK
- Abracon
- Adiva
- Fronter Crystal
- HK Crystals
- TEW
- Cal Crystal
- CTS
- Epson
- Fox
- Hosonic
- Micro Crystal
- OST
- Premier Devices
- Pletronics
- Showa Electric
- TEW
- HongKong Crystal
- Ecliptek
- Raltron
- Connor Winfield
- Taitien
Electrical Tapes
Fuses
- AEM
- Hollyland
- Sleek
- RTI / Ketema
- Fuzetec
- Betterfuse
- AUPO Electronics
- Bel Fuse
- Cooper Bussmann
- Littlefuse
- NEC
- Opti-Fuse
- San-O
- Schruter
- GE Sensing
- Keystone Carbon Co.
- NEC / Tokin
Inductors
Resistor
- ASJ Components
- Fenghua
- Hi-Tech Resistors
- Meritek
- Micron Resistors
- RCD
- RG Allen
- Royal Ohm Resistors
- SEI
- Vitrohm
- Walsin
- Yageo
- Hi-Tech Resistors
- Ohmite
- Phycomp
- ATE Electronics
- Xicon
- Ohmcraft
- IRC
- Vishay Passive Components
- Allen Bradley / Rockwell Automation
- ASJ Components
- BI Technologies
- Bourns
- C.T.S.
- Clarostat
- Dale/Vishay
- IRC
- KOA
- Megitt
- Noble
- Rockwell
- Piher International Corp
- RG Allen
- RCD Components
- Rohm
- S.E.I. Electronics
- Sincera
- Siegert
- Electronics
- Spectrol
- Tyco
- Venkel
- Vishay
- Vitrohm
- Walsin
- Welwyn
- Yageo
Thermistors/Thermostat
- Ametherm
- Betatherm
- Maida
- Kemin
- AUPO Electronics
- RTI / Ametherm
- Airpax
- Therm-o-Disc / Emerson
- Thermometrics / Amphenol
Transformers
- Etal / Profec
- Premo
- Sumida
- Tamura
- Pulse Engineering
- Wurth Electronik
- Etal/Profec
- Pacific Transformer
- Premier Devices
- Pulse
- Signal Transformer
- TDK
- Toko
- Halo
- Aztronic
Connectors