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

152969 Products showing for Passive Components

2355 of 999+
TE Connectivity 340Ω Metal Film Resistor 0.25W ±0.1% YR1B340RCC
  • RS Stock No. 754-5585P
  • Mfr. Part No. YR1B340RCC
Each (Supplied in a Bag)
£0.63
Vishay 100mΩ Wire Wound Resistor 1W ±1% RLP01R1000FS14
  • RS Stock No. 788-8012
  • Mfr. Part No. RLP01R1000FS14
Each (In a Pack of 5)
£11.546
Panasonic EZPV Film Capacitor, 600V dc, ±10%, 80μF, Through Hole
  • RS Stock No. 204-8469
  • Mfr. Part No. EZPV60806MTB
Each (In a Bag of 100)
£12.047
Welwyn 150mΩ Wire Wound Resistor 3W ±5% W21-R15JI
  • RS Stock No. 139-3301
  • Mfr. Part No. W21-R15JI
Each (In a Box of 1000)
£0.506
Welwyn 200mΩ Wire Wound Resistor 3W ±5% W21-R20JI
  • RS Stock No. 139-3304
  • Mfr. Part No. W21-R20JI
Each (In a Box of 1000)
£0.579
KEMET 15nF Multilayer Ceramic Capacitor MLCC, 500V dc V, 5% , SMD
  • RS Stock No. 207-7702
  • Mfr. Part No. C1206X153JCGACAUTO
Each (On a Tape of 5)
£0.944
TE Connectivity Metal Film SMD Resistor 5% 3W
  • RS Stock No. 286-7483
  • Mfr. Part No. SMQF3560KJT
Each (In a Pack of 5)
£1.00
Welwyn 330mΩ Wire Wound Resistor 3W ±5% W21-R33JI
  • RS Stock No. 139-3307
  • Mfr. Part No. W21-R33JI
Each (In a Box of 1000)
£0.594
TE Connectivity 78.7kΩ Metal Film Resistor 0.25W ±0.1% H878K7BYA
  • RS Stock No. 701-7991
  • Mfr. Part No. H878K7BYA
Each (In a Pack of 5)
£1.708
Panasonic 68μF Aluminium Electrolytic Capacitor 10V dc, Surface Mount - EEEHB1A680AP
  • RS Stock No. 569-372
  • Mfr. Part No. EEEHB1A680AP
Each (In a Pack of 5)
£0.42
Murata 22μF MLCC, 25V dc V, SMD
  • RS Stock No. 247-7915P
  • Mfr. Part No. GCM32EC71E226KE36L
Each (Supplied on a Reel)
£0.716
Vishay CRCW 22Ω, 0402 (1005M) Thick Film SMD Resistor ±1% 0.063W
  • RS Stock No. 678-8983
  • Mfr. Part No. CRCW040222R0FKED
Each (In a Pack of 50)
£0.026
Vishay 169kΩ Thin Film Resistor 0.6W ±1% MRS25000C1693FCT00
  • RS Stock No. 683-3092
  • Mfr. Part No. MRS25000C1693FCT00
Each (In a Pack of 25)
£0.046
Vishay MKP1848e Polypropylene Film Film Capacitor, 1.3kV dc, ±5%, 4μF, Through Hole
  • RS Stock No. 653-510
  • Mfr. Part No. MKP1848e54013JK2
Each
£3.70
Vishay CRCW 82.5kΩ, 0402 (1005M) Thick Film SMD Resistor ±1% 0.063W
  • RS Stock No. 678-9598P
  • Mfr. Part No. CRCW040282K5FKED
Each (Supplied on a Reel)
£0.013
Yageo 330Ω, 0402 (1005M) Thin Film SMD Resistor ±0.1% 0.0625W
  • RS Stock No. 199-1328
  • Mfr. Part No. RT0402BRD07330RL
Each (On a Tape of 10)
£0.099
Bourns, CV201210, 201210 Shielded Multilayer Surface Mount Inductor with a Ferrite Core, 10 μH Multilayer 15mA Idc Q:45
  • RS Stock No. 122-9164
  • Mfr. Part No. CV201210-100K
Each (In a Pack of 200)
£0.035
CHEMI-CON 150μF Surface Mount Polymer Capacitor, 35V
  • RS Stock No. 251-4899
  • Mfr. Part No. HHXC350ARA151MHA0G
Each (In a Box of 500)
£0.466
RS PRO 3.16kΩ, 0805 (2012M) Thick Film SMD Resistor ±1% 0.125W
  • RS Stock No. 717-2644
Each (On a Reel of 5000)
£0.003
KEMET R75 Polypropylene Capacitor PP, 2kV dc, 5%, 1nF, Through Hole
  • RS Stock No. 212-6811
  • Mfr. Part No. R75UI110050H4J
Each (In a Pack of 10)
£0.234
Results per page
1
2355
7649

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