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

152338 Products showing for Passive Components

2297 of 999+
EPCOS, B82793 SMD Common Mode Choke with a Ferrite Core, 4.7 mH -30 → +50% Wire-Wound 400mA Idc
  • RS Stock No. 496-2558
  • Mfr. Part No. B82793C0475N265
Each (In a Pack of 5)
£1.28
TE Connectivity CRG 47kΩ, 0805 (2012M) Thick Film SMD Resistor ±1% 0.125W
  • RS Stock No. 134-5492
  • Mfr. Part No. CRG0805F47K
Each (On a Reel of 5000)
£0.004
Panasonic ERJ6BW 27mΩ, 0805 (2012M) Thick Film SMD Resistor ±1% 0.5W
  • RS Stock No. 566-042
  • Mfr. Part No. ERJ6BWFR027V
Each (In a Pack of 5)
£0.542
Mobilemark OD3-700/2700MOD2-BLK Omnidirectional GSM & GPRS Antenna, 3G (UTMS), 4G (LTE)
  • RS Stock No. 195-2471
  • Mfr. Part No. OD3-700/2700MOD2-BLK
Each
£230.61
RND Carbon Film Carbon Film Resistor 500mW 5% RND 155RD12JN332T52
  • RS Stock No. 697-331
  • Mfr. Part No. RND 155RD12JN332T52
Each (In a Pack of 250)
£0.009
Panasonic ERJL03 100mΩ, 0603 (1608M) Thick Film SMD Resistor ±1% 0.1W
  • RS Stock No. 566-632
  • Mfr. Part No. ERJL03KF10CV
Each (In a Pack of 5)
£0.364
MERCURY, 8MHz Clock Oscillator, ±50ppm HCMOS, TTL, 8-Pin PDIP 5H8ET-8.000
  • RS Stock No. 767-5333
  • Mfr. Part No. 5H8ET-8.000
Each
£6.05
TE Connectivity CRG 470kΩ, 0805 (2012M) Thick Film SMD Resistor ±1% 0.125W
  • RS Stock No. 134-5498
  • Mfr. Part No. CRG0805F470K
Each (On a Reel of 5000)
£0.004
Panasonic 330μF Through Hole Polymer Capacitor, 16V dc
  • RS Stock No. 795-5496
  • Mfr. Part No. 16SEP330M
Each (In a Pack of 5)
£1.334
ECS Inc International 32.768kHz Crystal Oscillator SMD 2-Pin 1.6 x 1mm
  • RS Stock No. 301-297
  • Mfr. Part No. ECS-.327-9-16-TR
Each
£0.62
Molex 146200-0001 Chip Multiband Antenna with SMT Connector
  • RS Stock No. 683-878
  • Mfr. Part No. 146200-0001
Each (On a Reel of 500)
£3.451
Wurth, WE-KI, 0805A Shielded Wire-wound SMD Inductor with a Ceramic Core, 33 nH ±5% Wire-Wound 500mA Idc Q:60
  • RS Stock No. 163-7456
  • Mfr. Part No. 744760133A
Each (On a Reel of 2000)
£0.163
TE Connectivity Ferrite Bead (1204)
  • RS Stock No. 245-5793
  • Mfr. Part No. BMC2CY0150AN
Each (On a Reel of 3000)
£0.044
Vishay WSR2 500mΩ, 4257 (11070M Metal Strip SMD Resistor ±1% 2W
  • RS Stock No. 684-0738
  • Mfr. Part No. WSR2R5000FEA
Each (In a Pack of 5)
£0.224
EPCOS B32529 Polyester Film Capacitor, 250V dc, ±5%, 1nF, Through Hole
  • RS Stock No. 172-5805
  • Mfr. Part No. B32529C3102J000
Each (In a Bag of 2000)
£0.065
TE Connectivity CRG Series Thick Film Surface Mount Fixed Resistor 0805 Case 470kΩ ±1% 0.125W ±100ppm/°C
  • RS Stock No. 223-0786
  • Mfr. Part No. CRG0805F470K
Each (In a Pack of 50)
£0.018
Panasonic 68μF Hybrid, Polymer Aluminium Capacitors 25V dc, Surface Mount - EEHZC1E680XP
  • RS Stock No. 665-156
  • Mfr. Part No. EEHZC1E680XP
Each (In a Pack of 10)
£0.52
1kΩ, Through Hole Trimmer Potentiometer 0.5W Top Adjust Bourns, 3386
  • RS Stock No. 522-2479
  • Mfr. Part No. 3386G-1-102LF
Each
£1.59
Inductor/SMD/1000 ÁH/3.2 Ohm/0.22 A/?20%
  • RS Stock No. 487-108
  • Mfr. Part No. 7445430
Each
£2.14
KEMET 10000μF Aluminium Electrolytic Capacitor 63V dc, Screw Terminal - ALS30A103DE063
  • RS Stock No. 172-6876
  • Mfr. Part No. ALS30A103DE063
Each (In a Bag of 50)
£12.725
Results per page
1
2297
7617

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