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

153684 Products showing for Passive Components

6122 of 999+
Arcol, 6.8kΩ 50W Wire Wound Chassis Mount Resistor HS50 6K8 J ±5%
  • RS Stock No. 252-2883
  • Mfr. Part No. HS50 6K8 J
Each
£5.44
Wurth, WE-KI, 0805C Unshielded Wire-wound SMD Inductor with a Ceramic Core, 22 nH ±5% Wire-Wound 500mA Idc Q:55
  • RS Stock No. 737-3245
  • Mfr. Part No. 74476012C
Each (In a Bag of 10)
£0.316
Abracon 8MHz Clock Oscillator MEMS Oscillator, 4-Pin QFN, ASEMB-8.000MHZ-LY-T
  • RS Stock No. 241-3103P
  • Mfr. Part No. ASEMB-8.000MHZ-LY-T
Each (Supplied on a Reel)
£2.442
Panasonic 10μF Aluminium Electrolytic Capacitor 80V dc, Surface Mount - EEEFK1K100XP
  • RS Stock No. 708-3670
  • Mfr. Part No. EEEFK1K100XP
Each (In a Pack of 25)
£0.30
Wurth, MAPI, 3020HT Shielded Wire-wound SMD Inductor with a Polystyrene Core, 1.5 μH ±30% 5.2A Idc
  • RS Stock No. 219-750
  • Mfr. Part No. 74438336015HT
Each (On a Tape of 5)
£1.156
Renesas Electronics, 27MHz XO Crystal Oscillator, ±20ppm HCMOS SMD XLH538027.120000X
  • RS Stock No. 264-3484
  • Mfr. Part No. XLH538027.120000X
Each (In a Pack of 5)
£1.782
RS PRO 100Ω Metal Film Resistor 0.4W ±0.25%
  • RS Stock No. 174-2770
Each (In a Pack of 100)
£0.064
TE Connectivity, 6.8Ω 20W Wire Wound Chassis Mount Resistor SQBW206R8J ±5%
  • RS Stock No. 164-2154
  • Mfr. Part No. SQBW206R8J
Each (In a Box of 50)
£1.272
Wurth Elektronik 10μF Aluminium Electrolytic Capacitor 50V dc, Surface Mount - 865060643005
  • RS Stock No. 163-6396
  • Mfr. Part No. 865060643005
Each (On a Reel of 1000)
£0.133
Panasonic 1mF Surface Mount Polymer Capacitor, 16V dc
  • RS Stock No. 189-1636
  • Mfr. Part No. 16SVPF1000MX
Each (In a Pack of 5)
£1.726
TE Connectivity CPF 232kΩ, 0603 (1608M) Thin Film SMD Resistor ±0.1% 0.063W
  • RS Stock No. 123-9310
  • Mfr. Part No. CPF0603B232KE1
Each (On a Reel of 1000)
£0.11
Yageo 8.2kΩ, 0603 (1608M) Thick Film SMD Resistor ±1% 0.1 W, 0.2 W
  • RS Stock No. 199-5642
  • Mfr. Part No. RC0603FR-078K2L
Each (On a Reel of 5000)
£0.002
RS PRO 80dB SMD Square Wave External Magnetic Buzzer, 12.8 x 12.8 x 6.5mm, 1V Min, 3V Max
  • RS Stock No. 457-033
Each (In a Pack of 5)
£2.61
Arcol MRA0207 Series Axial Metal Film Fixed Resistor 475Ω ±0.1% 0.25W ±15ppm/°C
  • RS Stock No. 487-5757
  • Mfr. Part No. MRA0207475RBTA015
Each (In a Pack of 5)
£0.552
Arcol, 1Ω 100W Wire Wound Chassis Mount Resistor HS100 1R J ±5%
  • RS Stock No. 188-087P
  • Mfr. Part No. HS100 1R J
Each (Supplied in a Box)
£8.29
Arcol 10mΩ Metal Film Fixed Resistor 3W ±1% MSR-3 R01 F
  • RS Stock No. 487-9080
  • Mfr. Part No. MSR-3 R01 F
Each (In a Pack of 5)
£2.49
Wurth 22 μH ±20% Leaded Inductor, Max SRF:10MHz, 40.6A Idc, HCFAT
  • RS Stock No. 217-358
  • Mfr. Part No. 7843763540220
Each
£18.54
Wurth Elektronik 12MHz Crystal SMT 4-Pin 3.2 x 2.5 x 0.8mm
  • RS Stock No. 197-632
  • Mfr. Part No. 830055295
Each (On a Tape of 10)
£0.52
10kΩ, Panel Mount, Through Hole Trimmer Potentiometer 0.5W Side Adjust Vishay, 43P
  • RS Stock No. 167-9598
  • Mfr. Part No. M43P103KB30T601
Each (In a Box of 100)
£4.717
Panasonic 15mΩ, 1020 Thick Film SMD Resistor ±1% 2W
  • RS Stock No. 216-7447
  • Mfr. Part No. ERJD1DFR015U
Each (On a Tape of 10)
£0.353
Results per page
1
6122
7685

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