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

152631 Products showing for Passive Components

6625 of 999+
Arcol 150Ω Thick Film Resistor 35W ±5% AP836 150R J 100PPM
  • RS Stock No. 810-0947
  • Mfr. Part No. AP836 150R J 100PPM
Each
£4.95
Vishay MMA 330Ω, Melf 0204 Thin Film SMD Resistor ±1% 0.25W
  • RS Stock No. 180-3710
  • Mfr. Part No. MMA02040C3300FB300
Each (On a Reel of 500)
£0.035
Wurth Elektronik 68μF Through Hole Polymer Capacitor, 25V dc
  • RS Stock No. 839-2170
  • Mfr. Part No. 870025574003
Each (In a Pack of 5)
£0.69
Wurth Elektronik 3.3μF Aluminium Electrolytic Capacitor 50V dc, Surface Mount - 865250640007
  • RS Stock No. 839-5139
  • Mfr. Part No. 865250640007
Each (In a Pack of 25)
£0.25
Wurth, WE-PD, 1280 Shielded Wire-wound SMD Inductor with a Ferrite Core, 22 μH ±20% Wire-Wound 4.1A Idc
  • RS Stock No. 333-8594
  • Mfr. Part No. 744770122
Each
£2.03
EPCOS, SIMID, 2220 (5650M) Unshielded Wire-wound SMD Inductor with a Ferrite Core, 100 μH ±10% Wire-Wound 510mA Idc Q:20
  • RS Stock No. 212-5954P
  • Mfr. Part No. B82442T1104K000
Each (Supplied on a Reel)
£0.702
Wurth Elektronik 1nF Multilayer Ceramic Capacitor MLCC, 630V dc V, SMD
  • RS Stock No. 242-1249
  • Mfr. Part No. 885342208011
Each (On a Reel of 3000)
£0.046
Wurth, WE-MAPI, 2512 (6432M) Shielded Wire-wound SMD Inductor with a Magnetic Iron Alloy Core, 4.7 μH ±20% Wire-Wound
  • RS Stock No. 863-0772
  • Mfr. Part No. 74438324047
Each (In a Bag of 5)
£1.176
Wurth Elektronik WCAP-FTX2 Polypropylene Capacitor PP, 275V ac, ±10%, 220nF, Through Hole
  • RS Stock No. 871-2366
  • Mfr. Part No. 890324023028CS
Each (In a Bag of 10)
£0.361
Panasonic ERJP14 10kΩ, 1210 (3225M) Thick Film SMD Resistor ±5% 0.5W
  • RS Stock No. 153-905
  • Mfr. Part No. ERJP14J103U
Each (In a Pack of 250)
£0.041
Ferrite SMD 6A 0.03 Ohm 1812
  • RS Stock No. 486-030
  • Mfr. Part No. 742792510
Each (On a Tape of 2)
£0.395
EPCOS 560μF Aluminium Electrolytic Capacitor 450V dc, Snap-In - B43541A5567M060
  • RS Stock No. 209-8668
  • Mfr. Part No. B43541A5567M060
Each
£7.23
Vishay CRCW 3.9kΩ, 0402 (1005M) Thick Film SMD Resistor ±1% 0.063W
  • RS Stock No. 678-9298
  • Mfr. Part No. CRCW04023K90FKED
Each (In a Pack of 50)
£0.027
TDK 6.8μF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±20% , SMD
  • RS Stock No. 916-3087
  • Mfr. Part No. C4532X7R1H685M250KB
Each (In a Pack of 5)
£0.912
Panasonic 220μF Aluminium Electrolytic Capacitor 6.3V dc, Surface Mount - EEEHBJ221UAP
  • RS Stock No. 569-451
  • Mfr. Part No. EEEHBJ221UAP
Each (In a Pack of 5)
£0.352
TDK 10μF Multilayer Ceramic Capacitor MLCC, 25V dc V, ±10% , SMD
  • RS Stock No. 915-5345
  • Mfr. Part No. CGA5L1X7R1E106K160AC
Each (In a Pack of 10)
£0.507
Yageo 49.9kΩ, 0402 (1005M) Thick Film SMD Resistor ±1% 0.0625W
  • RS Stock No. 198-7804
  • Mfr. Part No. RC0402FR-0749K9L
Each (On a Reel of 10000)
£0.002
KYOCERA AVX LSP69001299TR PCB SMT Antenna, 4G (LTE)
  • RS Stock No. 202-4234
  • Mfr. Part No. LSP69001299TR
Each (On a Reel of 1120)
£1.563
Vishay 2.2Ω Metal Film Resistor 1W ±5% PR01000102208JR500
  • RS Stock No. 851-2481
  • Mfr. Part No. PR01000102208JR500
Each
£0.07
Wurth, WE-SL1 SMD Common Mode Line Filter with a Ferrite Core, 51 μH ±50% Sectional Winding 300mA Idc
  • RS Stock No. 500-3133P
  • Mfr. Part No. 744212510
Each (Supplied on a Reel)
£2.83
Results per page
1
6625
7632

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