Passive Components

A passive component is a module that does not require energy to operate, except for the available alternating current (AC) circuit that it is connected to. A passive module is not capable of power gain and is not a source of energy. A typical passive component would be: resistors, inductors, capacitors and transformers which together are required to build any electrical or electronic circuit.

Passive devices can be used individually or connected together within a circuit, either in a series or in a parallel combination to control complex circuits or signals.

Types of Passive Components

  • Capacitors

A capacitor is a component that can gather and hold a charge in a way that is similar to how a battery functions. The capacitor is made of 2 close conductors (usually plates) that are separated by a dielectric material. The plates accumulate electric charge when connected to power source. One plate accumulates positive charge and the other plate accumulates negative charge. It can hold the charge even when the voltage is no longer applied. Different types of capacitors are film capacitors, mica capacitors, ceramic capacitors, electrolytic capacitors, aluminium electrolytic capacitors, tantalum electrolytic capacitors and power factor correction capacitors

  • Resistors

A Resistor is an electrical device that resists the flow of electrical current. Although a resistor does not amplify or shape the electric current in any way its a powerful little device as it enables you to put the brakes on current flow in a very controlled way

  • Inductors

An inductor is a passive device that can store or deliver energy but cannot generate it. An ideal inductor is lossless, meaning that it can store energy indefinitely as no energy is lost as heat. Inductors are sometimes known as coils, chokes, electromagnets and solenoids

  • Ferrite Cores

A ferrite core is a ceramic compound that includes a mix of iron and another type of metal. Ferrite is common in many types of electrical components, including antennas. This magnetic core features wound components, such as windings from a transformer and inductors. It is useful because it offers low electrical conductivity along with high magnetic permeability.

  • Surge Protection Components

Surge protectors are a part of nearly every home and office today. They provide your expensive electronic devices with added protection against surges of electricity, which would ultimately destroy them.

Antennas
Antennas
Capacitors
Capacitors
Crystals, Oscillators & Resonators
Crystals, Oscillators & Resonators
EMI Filters & Protection
EMI Filters & Protection
Fixed Resistors
Fixed Resistors
Inductors
Inductors
Passive Components Kits
Passive Components Kits
Rotary Encoders
Rotary Encoders
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
Surge Protection Components
Surge Protection Components
Variable Resistors
Variable Resistors

154028 Products showing for Passive Components

1086 of 999+
Arcol, 100Ω 10W Wire Wound Chassis Mount Resistor HS10 100R J ±5%
  • RS Stock No. 166-4118
  • Mfr. Part No. HS10 100R J
Each (In a Bag of 100)
£2.607
Nichicon 33μF Aluminium Electrolytic Capacitor 25V dc, Surface Mount - UCW1E330MCL1GS
  • RS Stock No. 165-3758
  • Mfr. Part No. UCW1E330MCL1GS
Each (On a Reel of 1000)
£0.124
EPCOS B32524 Polyester Film Capacitor, 160 V ac, 250 V dc, ±10%, 4.7μF, Through Hole
  • RS Stock No. 191-2926P
  • Mfr. Part No. B32524Q3475K000
Each (Supplied in a Bag)
£2.05
Vishay RCP 50Ω, 0603 (1608M) Thick Film SMD Resistor ±2% 1.5W
  • RS Stock No. 167-9000
  • Mfr. Part No. RCP0603W50R0GEB
Each (On a Reel of 1000)
£0.775
Epson 24MHz Crystal Unit ±10ppm TSX-3225 4-Pin 3.2 x 2.5 x 0.6mm
  • RS Stock No. 904-7522P
  • Mfr. Part No. X1E000021012912
Each (Supplied on a Reel)
£1.466
Vishay 100pF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±5% , SMD
  • RS Stock No. 272-7802P
  • Mfr. Part No. VJ0402A101JXACW1BC
Each (Supplied on a Reel)
£0.022
Murata 2.2pF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±0.1pF , SMD
  • RS Stock No. 723-5133
  • Mfr. Part No. GJM1555C1H2R2BB01D
Each (In a Pack of 100)
£0.034
TE Connectivity CRG 820Ω, 0805 (2012M) Thick Film SMD Resistor ±1% 0.125W
  • RS Stock No. 134-5473
  • Mfr. Part No. CRG0805F820R
Each (On a Reel of 5000)
£0.004
KEMET PHE450 Metallised Polypropylene Film Capacitor, 400 V ac, 630 V dc, ±5%, 22nF, Through Hole
  • RS Stock No. 544-1355P
  • Mfr. Part No. PHE450MB5220JR06
Each (Supplied in a Box)
£0.714
Bourns PWR163 20Ω Metal Film SMD Resistor ±5% 25W
  • RS Stock No. 167-0057
  • Mfr. Part No. PWR163S-25-20R0J
Each (In a Tube of 50)
£2.66
Vishay 19.6kΩ Thin Film Resistor 0.6W ±1% MRS25000C1962FCT00
  • RS Stock No. 683-3156
  • Mfr. Part No. MRS25000C1962FCT00
Each (In a Pack of 25)
£0.038
EPCOS, HighE Varistor 2.4nF 500A, Clamping 2000V, Varistor 1200V, SIOV
  • RS Stock No. 167-0513
  • Mfr. Part No. B72260B0751K
Each (In a Box of 10)
£116.729
CSTNR4M00GH5C000R0, Ceramic Resonator, 4MHz 39pF, 3-Pin SMD, 4.5 x 2.0 x 1.1mm
  • RS Stock No. 276-3703
  • Mfr. Part No. CSTNR4M00GH5C000R0
Each (On a Tape of 10)
£0.41
TE Connectivity SM 47Ω Wire Wound SMD Resistor ±5% 3W
  • RS Stock No. 647-6245
  • Mfr. Part No. SMW347RJT
Each (In a Pack of 5)
£0.126
Yageo 470mΩ Wirewound Through Hole Fixed Resistor 7W ±5% PNP7WVJT-91-0R47
  • RS Stock No. 198-7415P
  • Mfr. Part No. PNP7WVJT-91-0R47
Each (Supplied in a Box)
£1.00
ROHM MCR 6.8kΩ, 0603 (1608M) Thick Film SMD Resistor ±1% 0.1W
  • RS Stock No. 901-3597
  • Mfr. Part No. MCR03EZPFX6801
Each (In a Bag of 100)
£0.006
Panasonic, 0603 (1608M) Thick Film Surface Mount Fixed Resistor ±1% 0.1W
  • RS Stock No. 277-779
  • Mfr. Part No. ERJ3EKF6811V
Each (In a Bag of 10)
£0.006
Abracon, 48MHz Crystal Oscillator Oscillator, 50ppm CMOS SMD ASE-48.000MHZ-LC-T
  • RS Stock No. 232-7268
  • Mfr. Part No. ASE-48.000MHZ-LC-T
Each (In a Pack of 10)
£0.813
Yageo 10μF MLCC, 6.3V dc V, ±20% , SMD
  • RS Stock No. 199-2272P
  • Mfr. Part No. CC0402MRX5R5BB106
Each (Supplied on a Reel)
£0.047
Vishay 330μF Aluminium Electrolytic Capacitor 25V dc - MAL211836331E3
  • RS Stock No. 280-3399
  • Mfr. Part No. MAL211836331E3
Each (In a Bag of 5)
£3.12
Results per page
1
1086
7702

Guides & Articles

Article image
LED Resistor Value Calculator
A calculator designed to help you understand what resistance value you require from your LED resistor, in order to ensure safety for your LED lighting.
Learn more
Article image
Resistors Guide
What are the different types of resistors? Learn more in our comprehensive guide.
Read more
Article image
Potentiometers Guide
Our potentiometers guide will help you understand their uses, how they work, the various types and characteristics.
Read more
Article image
A Guide to Voltage Controlled Oscillators
This guide covers voltage controlled oscillators, explaining what they are, the different types available, and examples of how they fit into a circuit.
Explore VCOs

Related links