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

154461 Products showing for Passive Components

6700 of 999+
Murata Ferrite Bead (Chip Ferrite Bead), 1.6 x 0.8 x 0.8mm (0603 (1608M)), 120Ω impedance at 100 MHz
  • RS Stock No. 104-8527
  • Mfr. Part No. BLM18AG121SH1D
Each (In a Pack of 200)
£0.025
Vishay 220Ω Thin Film Resistor 0.4W ±1% MBA02040C2200FC100
  • RS Stock No. 166-7715
  • Mfr. Part No. MBA02040C2200FC100
Each (In a Box of 1000)
£0.158
Murata 56pF MLCC, 50V dc V, ±2% , SMD
  • RS Stock No. 185-1898
  • Mfr. Part No. GRM0335C1H560GA01D
Each (On a Reel of 1000)
£0.004
Vishay 220Ω Thin Film Resistor 0.4W ±1% MRS16000C2200FCT00
  • RS Stock No. 683-2783
  • Mfr. Part No. MRS16000C2200FCT00
Each (In a Pack of 25)
£0.083
Vishay 220Ω Thin Film Resistor 0.4W ±1% MBA02040C2200FC100
  • RS Stock No. 157-569
  • Mfr. Part No. MBA02040C2200FC100
Each (In a Pack of 100)
£0.24
KEMET 1nF Multilayer Ceramic Capacitor MLCC, 200V dc V, ±5% , SMD
  • RS Stock No. 835-3967
  • Mfr. Part No. C0603C102J2GACAUTO
Each (In a Pack of 100)
£0.087
Vishay MCS 47kΩ, 0402 (1005M) Thin Film SMD Resistor ±1% 0.1W
  • RS Stock No. 188-6018
  • Mfr. Part No. MCS04020C4702FE000
Each (On a Tape of 100)
£0.029
Wurth Elektronik 100μF Surface Mount Aluminium Polymer Capacitor, 80V dc
  • RS Stock No. 275-9328
  • Mfr. Part No. 865081762009
Each (On a Reel of 200)
£0.983
Yageo 220nF MLCC, 10V dc V, ±10% , SMD
  • RS Stock No. 199-2221
  • Mfr. Part No. CC0402KRX7R6BB224
Each (On a Reel of 10000)
£0.01
TE Connectivity RQ73 10kΩ, 0805 (2012M) Thin Film SMD Resistor ±0.1% 0.2W
  • RS Stock No. 187-3096P
  • Mfr. Part No. RQ73C2A10KBTDF
Each (Supplied on a Reel)
£0.575
Wurth Power Inductor 4.7μH
  • RS Stock No. 484-699
  • Mfr. Part No. 7447786004
Each
£2.86
KOA 8.2kΩ, 0402 Thin Film SMD Resistor ±0.1% 0.06W
  • RS Stock No. 187-7921P
  • Mfr. Part No. RN73H1ETTP8201B25
Each (Supplied on a Reel)
£0.146
Vishay, IFSC-1515AH-01, ER Shielded Wire-wound SMD Inductor with a Ferrite Core, 1 μH ± 20% Shielded 4.3A Idc
  • RS Stock No. 298-731
  • Mfr. Part No. IFSC1515AHER1R0M01
Each (In a Bag of 20)
£0.358
2kΩ, Through Hole Trimmer Potentiometer 0.5W Side Adjust Vishay, 43P
  • RS Stock No. 169-3022
  • Mfr. Part No. M43P202KB40
Each (In a Box of 200)
£2.32
Inductor/radial 470 ÁH 0.6A ?20%
  • RS Stock No. 485-955
  • Mfr. Part No. 744731471
Each
£1.84
EPCOS, B82559_A016, SMD Shielded Wire-wound SMD Inductor with a Ferrite Core, 30 μH ±10% Shielded 9.2A Idc
  • RS Stock No. 185-8208
  • Mfr. Part No. B82559B0303A016
1 Tape of 1
£3.88
Yageo 2.2μF MLCC, 25V dc V, ±10% , SMD
  • RS Stock No. 199-2004P
  • Mfr. Part No. CC1206KKX7R8BB225
Each (Supplied on a Reel)
£0.11
Yageo 470pF MLCC, 200V dc V, ±10% , SMD
  • RS Stock No. 199-2085
  • Mfr. Part No. CC1206KRX7RABB471
1 Reel of 4000
£102.18
KEMET 2200μF Aluminium Electrolytic Capacitor 550V dc, Screw Terminal - ALS60A222MP550
  • RS Stock No. 871-2120
  • Mfr. Part No. ALS60A222MP550
Each
£67.68
Arcol Ohmite AS08 1kΩ, 0805 (2012M) Thick Film SMD Resistor ±5% 0.33W
  • RS Stock No. 136-4742
  • Mfr. Part No. AS08J1001ET
Each (On a Tape of 100)
£0.047
Results per page
1
6700
7724

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