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

152931 Products showing for Passive Components

2021 of 999+
Nichicon 270μF Aluminium Electrolytic Aluminium Electrolytic Capacitor 400V dc, Snap-In - LGX2G271MELB30
  • RS Stock No. 566-981
  • Mfr. Part No. LGX2G271MELB30
Each
£4.92(exc. VAT)
Abracon 12MHz Crystal Unit ±10ppm SMD 4-Pin 3.2 x 2.5 x 0.8mm
  • RS Stock No. 187-5796
  • Mfr. Part No. ABM8-12.000MHz-20-B1U-T
Each (On a Reel of 1000)
£0.20(exc. VAT)
Vishay 500mΩ High Power Wire Wound Resistor 4W ±5% G22041435007JF1000
  • RS Stock No. 243-7567P
  • Mfr. Part No. G22041435007JF1000
Each (Supplied on a Reel)
£0.99(exc. VAT)
KYOCERA AVX 2.2μF MLCC, 100V dc V, ±10% , SMD
  • RS Stock No. 136-4051
  • Mfr. Part No. 12101C225KAT2A
Each (In a Bag of 10)
£0.322(exc. VAT)
KEMET 8.4 mH 1 A Common Mode Choke 320mΩ 250V
  • RS Stock No. 186-0752
  • Mfr. Part No. SSRH7HS-M10084
Each (In a Box of 100)
£0.742(exc. VAT)
KEMET R60 Polyester Film Capacitor, 220 V ac, 630 V dc, ±5%, 22nF, Through Hole
  • RS Stock No. 172-6582
  • Mfr. Part No. R60PF2220AA30J
Each (In a Bag of 1300)
£0.218(exc. VAT)
Wurth Elektronik 820μF Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole - 860010578016
  • RS Stock No. 839-7346
  • Mfr. Part No. 860010578016
Each (In a Pack of 5)
£0.536(exc. VAT)
Bourns, PM2120 Wire-wound SMD Inductor 120 μH ±10% Wire-Wound 5.8A Idc
  • RS Stock No. 124-5804
  • Mfr. Part No. PM2120-121K-RC
Each (On a Reel of 77)
£1.486(exc. VAT)
EPCOS B32522 Polyester Film Capacitor, 63 V ac, 100 V dc, ±5%, 2.2μF, Through Hole
  • RS Stock No. 335-094P
  • Mfr. Part No. B32522C1225J000
Each (Supplied in a Box)
£1.178(exc. VAT)
Vishay CRCW 160Ω, 0603 (1608M) Thick Film SMD Resistor ±1% 0.1W
  • RS Stock No. 182-3643
  • Mfr. Part No. CRCW0603160RFKEA
Each (On a Reel of 1000)
£0.01(exc. VAT)
Isabellenhutte VMS 20mΩ, 2512 (6432M) SMD Resistor ±1% 3 W @ 95°C
  • RS Stock No. 193-0134P
  • Mfr. Part No. VMS-R020-1.0-U
Each (Supplied on a Reel)
£1.458(exc. VAT)
Panasonic 470μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - EEUFM1H471B
  • RS Stock No. 240-3846
  • Mfr. Part No. EEUFM1H471B
Each (On a Tape of 500)
£0.43(exc. VAT)
MERCURY 18.432MHz Crystal ±30ppm SMD 4-Pin 5 x 3.2 x 0.9mm
  • RS Stock No. 672-0466P
  • Mfr. Part No. MJ-18.432-12-30/30/4085
Each (Supplied as a Tape)
£0.91(exc. VAT)
Nichicon 220μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - UPS1H221MPD
  • RS Stock No. 519-4346P
  • Mfr. Part No. UPS1H221MPD
Each (Supplied in a Bag)
£0.576(exc. VAT)
KYOCERA AVX 4.7μF Electrolytic Tantalum Capacitor 35V dc, TPS Series
  • RS Stock No. 136-6240
  • Mfr. Part No. TPSB475K035R0700
Each (In a Bag of 10)
£0.319(exc. VAT)
EPCOS 330μF Aluminium Electrolytic Capacitor 450V dc, Snap-In - B43644A5337M060
  • RS Stock No. 209-8702
  • Mfr. Part No. B43644A5337M060
Each
£7.49(exc. VAT)
Panasonic ERJ6RQ 2.4Ω, 0805 (2012M) Thick Film SMD Resistor ±1% 0.125W
  • RS Stock No. 721-5502
  • Mfr. Part No. ERJ6RQF2R4V
Each (In a Pack of 5)
£0.176(exc. VAT)
Nichicon 1000μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - UPW1E102MHD
  • RS Stock No. 165-3923
  • Mfr. Part No. UPW1E102MHD
Each (In a Box of 100)
£0.339(exc. VAT)
Wurth, WE-LHMI, 4020 Shielded Multilayer Surface Mount Inductor with a Composite Iron Powder Core, 2.2 μH ±20%
  • RS Stock No. 756-8465
  • Mfr. Part No. 74437324022
Each
£1.91(exc. VAT)
Nichicon 47μF Aluminium Electrolytic Capacitor 50V dc, Surface Mount - UWD1H470MCL1GS
  • RS Stock No. 843-2654P
  • Mfr. Part No. UWD1H470MCL1GS
Each (Supplied on a Reel)
£0.231(exc. VAT)
Results per page
1
2021
7647

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