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

154518 Products showing for Passive Components

1128 of 999+
Vishay 470μF MnO2 Tantalum Capacitor 10V dc, TR3 Series
  • RS Stock No. 684-5335P
  • Mfr. Part No. TR3E477K010C0100
Each (Supplied on a Reel)
£3.832(exc. VAT)
KEMET 1μF Multilayer Ceramic Capacitor MLCC, 200V dc V, ±10% , SMD
  • RS Stock No. 146-4260
  • Mfr. Part No. C2220X105K2RACTU
Each (In a Bag of 2)
£2.43(exc. VAT)
TE Connectivity CPF 1.02kΩ, 0603 (1608M) Thin Film SMD Resistor ±0.1% 0.063W
  • RS Stock No. 122-9049
  • Mfr. Part No. CPF0603B1K02E1
Each (In a Bag of 20)
£0.236(exc. VAT)
Arcol 1MΩ Ceramic Resistor 10W 106BA105KDS
  • RS Stock No. 194-5180
  • Mfr. Part No. 106BA105KDS
Each
£46.73(exc. VAT)
Panasonic ECQUA Polypropylene Film Capacitor, 275V ac, ±20%, 100nF, Through Hole
  • RS Stock No. 739-8629
  • Mfr. Part No. ECQUAAF104M
Each (In a Pack of 10)
£0.369(exc. VAT)
Abracon 25MHz Crystal ±20ppm SMD 2 x 1.6 x 0.59mm
  • RS Stock No. 171-0592
  • Mfr. Part No. ABM11-25.000MHZ-D2X-T3
Each (In a Pack of 5)
£0.734(exc. VAT)
L-Com, AL Surge Suppressor Unit 65 Maximum Voltage Rating Surge Protection
  • RS Stock No. 671-780
  • Mfr. Part No. AL-CAT6AJW
Each
£90.77(exc. VAT)
KEMET 12pF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±5% , SMD
  • RS Stock No. 146-6560
  • Mfr. Part No. C0805C120J5GACTU
Each (On a Reel of 4000)
£0.012(exc. VAT)
Panasonic 1000μF Aluminium Electrolytic Capacitor 63V dc, Radial, Through Hole - ECA1JM102
  • RS Stock No. 228-7013
  • Mfr. Part No. ECA1JM102
Each (In a Pack of 5)
£1.092(exc. VAT)
Arcol 825Ω Metal Film Resistor 0.25W ±0.1% MRA0207825RBTA015
  • RS Stock No. 166-4335
  • Mfr. Part No. MRA0207825RBTA015
Each (In a Box of 500)
£0.331(exc. VAT)
Allen Bradley, 1321 480 V 45A Line Reactor
  • RS Stock No. 262-2049
  • Mfr. Part No. 1321-3R45-B
Each
£607.44(exc. VAT)
TE Connectivity CPF 931Ω, 0603 (1608M) Thin Film SMD Resistor ±0.1% 0.063W
  • RS Stock No. 123-1554
  • Mfr. Part No. CPF0603B931RE1
Each (In a Bag of 20)
£0.061(exc. VAT)
ROHM 470Ω, 1210 (3225M) Thick Film Resistor ±5% 0.66W
  • RS Stock No. 263-7677
  • Mfr. Part No. ESR25JZPJ471
Each (On a Tape of 10)
£0.093(exc. VAT)
Abracon APAE1575R1820ABDC1-T Patch GPS Antenna with SMA Connector
  • RS Stock No. 241-3059
  • Mfr. Part No. APAE1575R1820ABDC1-T
Each (In a Pack of 5)
£2.308(exc. VAT)
TE Connectivity 3520 6.8Ω, 2512 (6432M) Thick Film SMD Resistor ±5% 1W
  • RS Stock No. 224-0121
  • Mfr. Part No. 35206R8JT
Each (In a Pack of 10)
£0.034(exc. VAT)
RS PRO 910kΩ, 0805 (2012M) Thick Film SMD Resistor ±1% 0.125W
  • RS Stock No. 804-6675
Each (On a Reel of 5000)
£0.004(exc. VAT)
Panasonic 4.7μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - ECEA1HKS4R7
  • RS Stock No. 117-029
  • Mfr. Part No. ECEA1HKS4R7
Each (In a Pack of 5)
£0.224(exc. VAT)
RS PRO Ferrite Ring Ferrite Ring, For: EMI Suppression, RFI Suppression, 25 x 15 x 12mm
  • RS Stock No. 280-8069
Each
£4.06(exc. VAT)
Vishay 33μF Aluminium Electrolytic Capacitor 50V dc - MAL215262229E3
  • RS Stock No. 280-0362
  • Mfr. Part No. MAL215262229E3
Each (In a Bag of 10)
£1.148(exc. VAT)
TE Connectivity CRG 150kΩ, 1206 (3216M) Thick Film SMD Resistor ±1% 0.25W
  • RS Stock No. 223-2552
  • Mfr. Part No. CRG1206F150K
Each (In a Pack of 50)
£0.004(exc. VAT)
Results per page
1
1128
7726

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