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

305 of 999+
Yageo 150kΩ, 0603 (1608M) Thin Film SMD Resistor ±0.1% 0.1W
  • RS Stock No. 199-1415P
  • Mfr. Part No. RT0603BRD07150KL
Each (Supplied on a Reel)
£0.079
100Ω, Through Hole Trimmer Potentiometer 0.5W Side Adjust Bourns, 3296
  • RS Stock No. 521-9473
  • Mfr. Part No. 3296P-1-101LF
Each
£2.00
Arcol, 560Ω 100W Aluminium Chassis Mount Resistor HS100 560R F ±1%
  • RS Stock No. 162-3589
  • Mfr. Part No. HS100 560R F
Each
£11.87
Dehn, DG Modular Surge Protector 275 V Maximum Voltage Rating 40kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 847-0971
  • Mfr. Part No. DG M TNC 275 FM
Each
£340.80
Vishay 2.2MΩ Thin Film Resistor 0.6W ±1% MRS25000C2204FCT00
  • RS Stock No. 683-4171P
  • Mfr. Part No. MRS25000C2204FCT00
Each (Supplied on a Reel)
£0.095
RS PRO, 0201 Wire-wound SMD Inductor with a Ceramic Core, 1.0nH ±0.1nH Multilayer 800mA Idc
  • RS Stock No. 256-7563
Each (On a Tape of 50)
£0.003
Bourns, SRP1770TA Shielded Wire-wound SMD Inductor with a Carbonyl Powder Core, 22 μH ±20% Wire-Wound 12A Idc Q:20
  • RS Stock No. 905-4766P
  • Mfr. Part No. SRP1770TA-220M
Each (Supplied on a Reel)
£3.24
RS PRO 47kΩ Carbon Film Resistor 2W ±5%
  • RS Stock No. 707-8930
Each (In a Pack of 10)
£0.172
Roxburgh EMC 740 μH Ferrite Common Mode Choke, Max SRF:440Hz, 8A Idc, 9.6mΩ Rdc 250 V ac, CMV
  • RS Stock No. 288-165
  • Mfr. Part No. CMV80
Each
£9.97
RS PRO 2.2kΩ Carbon Film Resistor 0.5W ±5%
  • RS Stock No. 707-8255
Each (In a Pack of 10)
£0.145
Wurth Elektronik Ferrite Ferrite Sleeve, 20 max. wires, Fixed, Inner dims. 28 x 0.8mm
  • RS Stock No. 123-4229
  • Mfr. Part No. 74278032
Each (In a Pack of 2)
£2.255
TDK 10μF Multilayer Ceramic Capacitor MLCC, 25V dc V, ±10% , SMD
  • RS Stock No. 740-7732
  • Mfr. Part No. C3225X7R1E106K250AC
Each (In a Pack of 10)
£0.342
KEMET 4.7nF Multilayer Ceramic Capacitor MLCC, 2kV dc V, ±10% , SMD
  • RS Stock No. 146-4338
  • Mfr. Part No. C1210C472KGRACTU
Each (In a Bag of 10)
£0.567
Panasonic 33kΩ, 0805 (2012M) Thick Film SMD Resistor ±5% 0.5W
  • RS Stock No. 228-5186
  • Mfr. Part No. ERJHP6J333V
Each (On a Tape of 100)
£0.037
KEMET 100nF Multilayer Ceramic Capacitor MLCC, 25V dc V, -20 → +80% , SMD
  • RS Stock No. 264-4646
  • Mfr. Part No. C0603C104Z3VACTU
Each (In a Pack of 25)
£0.022
KEMET C27 Metallised Polypropylene Film Capacitor, 470V ac, ±5%, 2μF, Chassis Mount
  • RS Stock No. 377-8891
  • Mfr. Part No. C274AC34200SA0J
Each
£3.64
KYOCERA AVX 33μF Tantalum Capacitor 25V dc, TAP Series
  • RS Stock No. 134-9853
  • Mfr. Part No. TAP336K025SCS
Each (In a Bag of 5)
£1.844
Bourns, 4100R 3.3kΩ ±2% Isolated Resistor Array, 8 Resistors, 2.25W total, DIP, Through Hole
  • RS Stock No. 522-3191P
  • Mfr. Part No. 4116R-1-332LF
Each (Supplied in a Tube)
£1.102
WIMA MKS2 Polyester Film Capacitor, 40 V ac, 63 V dc, ±10%, 470nF, Through Hole
  • RS Stock No. 108-2429
  • Mfr. Part No. MKS2C034701C00KSSD
Each (In a Pack of 5)
£0.516
Vishay MBB0207 Series Axial Thin Film Fixed Resistor 3.3kΩ ±1% 0.6W ±50ppm/°C
  • RS Stock No. 506-5169P
  • Mfr. Part No. MBB02070C3301FCT00
Each (Supplied as a Tape)
£0.059
Results per page
1
305
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