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

1124 of 999+
AVX 2.2nF Multilayer Ceramic Capacitor MLCC, 50V dc V, -20 → +50% , SMD
  • RS Stock No. 697-3392
  • Mfr. Part No. W3F15C2228AT1A
Each (In a Pack of 25)
£0.247(exc. VAT)
Wurth Elektronik 470μF Surface Mount Aluminium Polymer Capacitor, 25V dc
  • RS Stock No. 275-9429
  • Mfr. Part No. 875575561007
Each (On a Reel of 400)
£1.28(exc. VAT)
10kΩ, Through Hole Trimmer Potentiometer 0.75W Side Adjust Vishay, T18
  • RS Stock No. 167-9911
  • Mfr. Part No. T18103KT10
Each (In a Tube of 25)
£1.895(exc. VAT)
TDK 2.2μF Multilayer Ceramic Capacitor MLCC, 35V dc V, ±10% , SMD
  • RS Stock No. 179-4929
  • Mfr. Part No. CGA4J1X7R1V225K125AC
Each (On a Reel of 2000)
£0.122(exc. VAT)
AVX 22pF Multilayer Ceramic Capacitor MLCC, 100V dc V, ±5% , SMD
  • RS Stock No. 136-1087
  • Mfr. Part No. 12061A220JAT2A
Each (On a Reel of 4000)
£0.049(exc. VAT)
10kΩ, Through Hole Trimmer Potentiometer 0.5W Side Adjust Bourns, 3362
  • RS Stock No. 167-3267
  • Mfr. Part No. 3362W-1-103LF
Each (In a Tube of 50)
£0.647(exc. VAT)
Bourns 3549 5kΩ Rotary Potentiometer 10-Turns 1-Gang Servo Mount, 3549S-1AE-502A
  • RS Stock No. 692-8547P
  • Mfr. Part No. 3549S-1AE-502A
Each (Supplied in a Box)
£32.93(exc. VAT)
Panasonic 47μF Aluminium Electrolytic Capacitor 450V dc, Radial, Through Hole - EEUEE2W470
  • RS Stock No. 699-7587P
  • Mfr. Part No. EEUEE2W470
Each (Supplied in a Bag)
£1.94(exc. VAT)
Abracon 25MHz Crystal ±50ppm Ceramic Package 4-Pin 3.2 x 2.5 x 0.8mm
  • RS Stock No. 240-3488P
  • Mfr. Part No. ABM8AIG-25.000MHZ-8-T
Each (Supplied on a Reel)
£0.491(exc. VAT)
AVX 1μF Surface Mount Polymer Capacitor, 50V dc
  • RS Stock No. 249-0359
  • Mfr. Part No. TCJB105M050R0300E
Each (On a Reel of 2000)
£0.458(exc. VAT)
WIMA FKP2 Polypropylene Film Capacitor, 63 V ac, 100 V dc, ±5%, 100pF, Through Hole
  • RS Stock No. 171-0775
  • Mfr. Part No. FKP02/100/100/5
Each (In a Bag of 5000)
£0.391(exc. VAT)
Wurth 8.2 μH 20% Leaded Inductor, Max SRF:16MHz, 19A Idc, 2.5mΩ Rdc, WE-HIDA THT
  • RS Stock No. 217-7347
  • Mfr. Part No. 7444013119082
Each (In a Tray of 9)
£6.669(exc. VAT)
Bourns 91 5kΩ Rotary Potentiometer 1-Gang Panel Mount, 91A1A-C28-B13L
  • RS Stock No. 789-9431P
  • Mfr. Part No. 91A1A-C28-B13L
Each (Supplied in a Bag)
£5.08(exc. VAT)
Wurth Elektronik 27μF Surface Mount Polymer Capacitor, 35V dc
  • RS Stock No. 257-5739
  • Mfr. Part No. 875115645012
Each (On a Tape of 10)
£0.928(exc. VAT)
TDK 3pF Multilayer Ceramic Capacitor MLCC, 100V dc V, ±0.25pF , SMD
  • RS Stock No. 179-5987
  • Mfr. Part No. CGA3E2C0G2A030C080AA
Each (On a Reel of 500)
£0.018(exc. VAT)
KEMET 220μF Surface Mount Polymer Capacitor, 35V dc
  • RS Stock No. 209-5390
  • Mfr. Part No. A768KS227M1VLAE024
Each (On a Reel of 500)
£0.299(exc. VAT)
500Ω, Through Hole Trimmer Potentiometer 0.5W Top Adjust Bourns, 3329
  • RS Stock No. 167-5235
  • Mfr. Part No. 3329H-1-501LF
Each (In a Tube of 50)
£1.33(exc. VAT)
Vishay Single Layer Ceramic Capacitor (SLCC) 2.2nF 400V ac ±20% Y5U Dielectric, WYO, Through Hole +125°C Max Op. Temp.
  • RS Stock No. 683-2197P
  • Mfr. Part No. WYO222MCMBF0KR
Each (Supplied in a Bag)
£0.402(exc. VAT)
Bourns, IsoMOV Metal Oxide Varistor 50pF 200A, Clamping 1100V, Varistor 420V, Bulk
  • RS Stock No. 236-5189
  • Mfr. Part No. IsoM8-420-B-L2
Each (In a Bag of 200)
£0.678(exc. VAT)
TE Connectivity 001-0009 Stubby WiFi Antenna with SMA RP Connector, WiFi (Dual Band)
  • RS Stock No. 209-7234
  • Mfr. Part No. 001-0009
Each
£14.49(exc. VAT)
Results per page
1
1124
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