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

154991 Products showing for Passive Components

107 of 999+
Yageo 2.2μF MLCC, 25V dc V, ±10% , SMD
  • RS Stock No. 198-8328
  • Mfr. Part No. CS1206KKX7R8BB225
Each (On a Tape of 10)
£0.307
KOA 8.2kΩ Carbon Film Resistor 0.25W ±5% CF1/4C822J
  • RS Stock No. 475-6729
  • Mfr. Part No. CF1/4C822J
Each (In a Bag of 100)
£0.033
KYOCERA AVX 5F Supercapacitor 0 → +100% Tolerance, SCC 2.3V dc, Through Hole
  • RS Stock No. 186-2170
  • Mfr. Part No. SCCS20B505PRB
Each (In a Bag of 900)
£0.686
Panasonic ECQUA Polypropylene Film Capacitor, 275V ac, ±20%, 470nF, Through Hole
  • RS Stock No. 739-8648
  • Mfr. Part No. ECQUAAF474M
Each (In a Pack of 5)
£0.714
Panasonic 2200μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - EEUFR1E222L
  • RS Stock No. 708-3762
  • Mfr. Part No. EEUFR1E222L
Each (In a Pack of 5)
£1.12
Vishay Single Layer Ceramic Capacitor (SLCC) 100pF 2kV dc ±10% Y5R Dielectric, F, Through Hole +125°C Max Op. Temp.
  • RS Stock No. 683-2137
  • Mfr. Part No. F101K25Y5RP6UK5R
Each (In a Pack of 25)
£0.147
EPCOS B32521 Polyester Film Capacitor, 63 V ac, 100 V dc, ±10%, 220nF, Through Hole
  • RS Stock No. 194-3523
  • Mfr. Part No. B32521C1224K000
Each (In a Pack of 25)
£0.232
CHEMI-CON 1000μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - EKY-500ELL102MM20S
  • RS Stock No. 812-2820
  • Mfr. Part No. EKY-500ELL102MM20S
Each (In a Pack of 5)
£1.318
KEMET R76_125C Polypropylene Film Capacitor, 1 kV dc, 600 V ac, ±5%, 22nF, Through Hole
  • RS Stock No. 192-8630
  • Mfr. Part No. R76QI222050H4J
Each (In a Pack of 25)
£0.328
TE Connectivity 120Ω Carbon Film, Ceramic Resistor 0.5W ±5% 1-1623932-6
  • RS Stock No. 137-2765
  • Mfr. Part No. 1-1623932-6
Each (In a Pack of 200)
£0.031
RS PRO 47μF Aluminium Electrolytic Capacitor 63V dc, Radial, Through Hole
  • RS Stock No. 711-1586
Each (In a Pack of 50)
£0.061
Vishay P16 4.7kΩ Rotary Potentiometer 1-Gang Panel Mount, P16NP472MAB15
  • RS Stock No. 790-4435
  • Mfr. Part No. P16NP472MAB15
Each
£15.70
RS PRO 2200μF Aluminium Electrolytic Capacitor 16V dc, Radial, Through Hole
  • RS Stock No. 711-1006P
Each (Supplied in a Bag)
£0.584
1MΩ, Through Hole Trimmer Potentiometer 0.5W Top Adjust Bourns, PV36
  • RS Stock No. 769-2164
  • Mfr. Part No. PV36W105C01B00
Each
£1.32
TE Connectivity 220Ω Wire Wound Resistor 4W ±5% SBCHE4220RJ
  • RS Stock No. 206-0509
  • Mfr. Part No. SBCHE4220RJ
Each (In a Pack of 5)
£0.778
Bourns, IsoMOV Metal Oxide Varistor 40pF 100A, Clamping 875V, Varistor 320V, Bulk
  • RS Stock No. 236-5178
  • Mfr. Part No. IsoM5-320-B-L2
Each (On a Tape of 5)
£1.328
RS PRO 10nF Mica Capacitor 500V dc ±1% Tolerance Flat
  • RS Stock No. 168-3290
Each (In a Bag of 50)
£17.895
Yageo 100nF MLCC, 25V dc V, ±5% , SMD
  • RS Stock No. 200-6513
  • Mfr. Part No. CC0603JRX7R8BB104
Each (On a Tape of 200)
£0.02
RS PRO 22μF Aluminium Electrolytic Capacitor 25V dc, Axial, Through Hole
  • RS Stock No. 707-6423P
Each (Supplied in a Bag)
£0.302
Yageo 10kΩ, 1206 (3216M) Thick Film Resistor ±1% 0.25W
  • RS Stock No. 197-8249P
  • Mfr. Part No. AC1206FR-0710KL
Each (Supplied on a Reel)
£0.01
Results per page
1
107
7750

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