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

155496 Products showing for Passive Components

29 of 999+
KEMET 470μF Aluminium Electrolytic Capacitor 100V dc, Axial, Through Hole - PEG124PL347VQL1
  • RS Stock No. 226-7069
  • Mfr. Part No. PEG124PL347VQL1
Each
£8.97
RS PRO 250Ω Metal Film Resistor 0.6W ±0.5%
  • RS Stock No. 174-2772
Each (In a Pack of 100)
£0.055
50kΩ, Through Hole Trimmer Potentiometer 0.5W Side Adjust Bourns, 3296
  • RS Stock No. 522-0007P
  • Mfr. Part No. 3296X-1-503LF
Each (Supplied in a Tube)
£1.96
Vishay 64W Series 19 (Electrical), 22 (Mechanical)-Turn Through Hole Trimmer Resistor with Pin Terminations, 200Ω ±10%
  • RS Stock No. 154-2000
  • Mfr. Part No. M64W201KB40
Each
£3.03
Yageo 220kΩ, 0603 (1608M) Thin Film SMD Resistor ±0.1% 0.1W
  • RS Stock No. 199-1463
  • Mfr. Part No. RT0603BRD07220KL
Each (On a Tape of 10)
£0.078
Vishay 10μF Tantalum Capacitor 6.3V dc
  • RS Stock No. 252-5174
  • Mfr. Part No. 293D106X96R3B2TE3
Each (On a Tape of 10)
£0.157
Yageo 51Ω Wirewound Wirewound Resistor 2W 5% FKN2WSJT-52-51R
  • RS Stock No. 199-6213
  • Mfr. Part No. FKN2WSJT-52-51R
Each (On a Tape of 50)
£0.159
Nichicon 3300μF Aluminium Electrolytic Capacitor 50V dc, Snap-In - LLS1H332MELZ
  • RS Stock No. 846-7098
  • Mfr. Part No. LLS1H332MELZ
Each (In a Pack of 2)
£2.575
TE Connectivity 2.2Ω Metal Film Resistor 0.6W ±1% LR1F2R2
  • RS Stock No. 150-644
  • Mfr. Part No. LR1F2R2
Each (In a Pack of 10)
£0.155
Panasonic ERA 390Ω, 0805 (2012M) Thin Film SMD Resistor ±0.1% 0.125W
  • RS Stock No. 565-875
  • Mfr. Part No. ERA6AEB391V
Each (In a Pack of 5)
£0.116
KEMET 330pF Multilayer Ceramic Capacitor MLCC, 200V dc V, ±5% , Through Hole
  • RS Stock No. 538-1269
  • Mfr. Part No. C315C331J2G5TA
Each (In a Pack of 5)
£0.28
Panasonic 33μF Aluminium Electrolytic Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole - EEUFM1V330
  • RS Stock No. 526-1840
  • Mfr. Part No. EEUFM1V330
Each (In a Pack of 5)
£0.20
KEMET R76_125C Polypropylene Film Capacitor, 1 kV dc, 600 V ac, ±5%, 270nF, Through Hole
  • RS Stock No. 192-8708
  • Mfr. Part No. R76QR327050H4J
Each (In a Pack of 5)
£1.736
2kΩ, Through Hole Trimmer Potentiometer 0.75W Side Adjust Bourns, 3006
  • RS Stock No. 521-9085
  • Mfr. Part No. 3006P-1-202LF
Each
£1.73
Eaton RMQ-Titan 470kΩ Potentiometer Screw Terminal, 229494 M22-R470K
  • RS Stock No. 620-6068
  • Mfr. Part No. 229494 M22-R470K
Each
£72.99
Panasonic 470μF Aluminium Electrolytic Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole - EEUFM1V471
  • RS Stock No. 526-1884
  • Mfr. Part No. EEUFM1V471
Each (In a Pack of 5)
£0.542
Panasonic ERJ1T 1.2Ω, 2512 (6432M) Thick Film SMD Resistor ±1% 1W
  • RS Stock No. 721-6271
  • Mfr. Part No. ERJ1TRQF1R2U
Each (In a Pack of 5)
£0.474
Nichicon 68μF Aluminium Electrolytic Capacitor 450V dc, Snap-In - LGU2W680MELY
  • RS Stock No. 519-3753
  • Mfr. Part No. LGU2W680MELY
Each
£2.96
KEMET R60 Metallised Polyester Film Capacitor, 40 V ac, 63 V dc, ±10%, 2.2μF, Through Hole
  • RS Stock No. 165-0170
  • Mfr. Part No. R60DF4220506AK
Each (In a Pack of 10)
£0.516
KEMET 47nF Multilayer Ceramic Capacitor MLCC, 100V dc V, ±10% , Through Hole
  • RS Stock No. 538-1556
  • Mfr. Part No. C322C473K1R5TA
Each (In a Pack of 5)
£0.592
Results per page
1
29
7775

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