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

154521 Products showing for Passive Components

1180 of 999+
KEMET 100μF Multilayer Ceramic Capacitor MLCC, 10V dc V, ±20% , SMD
  • RS Stock No. 841-0809
  • Mfr. Part No. C1210C107M8PACTU
Each (In a Pack of 5)
£0.954(exc. VAT)
500Ω, Through Hole Trimmer Potentiometer 0.2W Top Adjust Bourns, 3306
  • RS Stock No. 488-5293P
  • Mfr. Part No. 3306P-1-501
Each (Supplied in a Bag)
£0.262(exc. VAT)
Genteq GEM III 97F8000 Metallised Polypropylene Film Capacitor, 240V ac, ±6%, 100μF
  • RS Stock No. 908-4375
  • Mfr. Part No. 97F8052
Each
£54.20(exc. VAT)
Linx ANT-B28-PW-QW-UFL Whip WiFi Antenna with UFL Connector, 2G (GSM/GPRS), 3G (UTMS), 4G (LTE)
  • RS Stock No. 202-5874
  • Mfr. Part No. ANT-B28-PW-QW-UFL
Each (In a Bag of 50)
£7.65(exc. VAT)
1kΩ, Through Hole Trimmer Potentiometer 0.25W Side Adjust Vishay, T63
  • RS Stock No. 374-7184P
  • Mfr. Part No. T63XB102KT20
Each (Supplied in a Tube)
£3.10(exc. VAT)
TDK 47nF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±10% , SMD
  • RS Stock No. 110-9769
  • Mfr. Part No. CGA3E2X8R1H473K080AA
Each (On a Reel of 4000)
£0.02(exc. VAT)
Panasonic 220μF Hybrid Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole - EEHAZA1V221B
  • RS Stock No. 210-5645
  • Mfr. Part No. EEHAZA1V221B
Each (In a Box of 500)
£0.50(exc. VAT)
TE Connectivity, 4.7Ω 50W Wire Wound Chassis Mount Resistor THS504R7J ±5%
  • RS Stock No. 164-4407
  • Mfr. Part No. THS504R7J
Each (In a Box of 100)
£2.194(exc. VAT)
Taoglas Aerial Mounting & Installation Wall Bracket PMB.MA9.01
  • RS Stock No. 690-980
  • Mfr. Part No. PMB.MA9.01
Each
£18.16(exc. VAT)
TDK YFF-P, Feedthrough Capacitor6.3V dc, Surface Mount
  • RS Stock No. 144-7438
  • Mfr. Part No. YFF18PH0J225MT000N
Each (In a Pack of 20)
£0.082(exc. VAT)
Nichicon 470μF Aluminium Electrolytic Aluminium Electrolytic Capacitor 450V dc, Snap-In - LGX2W471MELC45
  • RS Stock No. 566-992
  • Mfr. Part No. LGX2W471MELC45
Each
£11.31(exc. VAT)
Masach Tech Tin Plated Steel Shielding Cage Seamless Cover, 32.9 x 24.4 x 4mm
  • RS Stock No. 234-8622
  • Mfr. Part No. MS323-30C
Each (In a Pack of 5)
£0.84(exc. VAT)
KEMET 30A 500 V ac, Chassis Mount EMI Filter, Screw 3 Phase
  • RS Stock No. 242-0936
  • Mfr. Part No. GTX-3300-Y473
Each
£119.70(exc. VAT)
Vishay 470pF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±10% , SMD
  • RS Stock No. 272-7911
  • Mfr. Part No. VJ0603Y471KXACW1BC
Each (On a Reel of 4000)
£0.009(exc. VAT)
Yageo 8.2pF MLCC, 50V dc V, ±0.25pF , SMD
  • RS Stock No. 242-3904P
  • Mfr. Part No. CC0603DRNPO9BN8R2
Each (Supplied on a Reel)
£0.014(exc. VAT)
Panasonic 330μF Tantalum Capacitor 6.3V dc, TPF Series
  • RS Stock No. 230-6346P
  • Mfr. Part No. 6TPF330MAL
Each (Supplied on a Reel)
£1.71(exc. VAT)
Yageo 18pF MLCC, 50V dc V, ±5% , SMD
  • RS Stock No. 199-2166
  • Mfr. Part No. CC0402JRNPO9BN180
Each (On a Reel of 10000)
£0.003(exc. VAT)
Murata 470nF Multilayer Ceramic Capacitor MLCC, 25V dc V, ±10% , SMD
  • RS Stock No. 723-4985P
  • Mfr. Part No. GCM188R71E474KA64D
Each (Supplied on a Reel)
£0.041(exc. VAT)
Wurth Elektronik 270μF Through Hole Polymer Capacitor, 16V dc
  • RS Stock No. 839-2142
  • Mfr. Part No. 870025374004
Each (In a Pack of 5)
£0.556(exc. VAT)
Bourns, CAY16 33kΩ ±5% Isolated Resistor Array, 4 Resistors, 0.25W total, 1206 (3216M), Convex
  • RS Stock No. 522-5709P
  • Mfr. Part No. CAY16-333J4LF
Each (Supplied on a Reel)
£0.025(exc. VAT)
Results per page
1
1180
7727

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