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

154521 Products showing for Passive Components

1237 of 999+
Wurth Elektronik 100μF Surface Mount Polymer Capacitor, 35V dc
  • RS Stock No. 257-5746
  • Mfr. Part No. 875115655003
Each (On a Reel of 400)
£1.596(exc. VAT)
Vishay NTC Thermistor, NTC Type, 0201 (0603M), 0.6 x 0.3 x 0.3mm
  • RS Stock No. 652-925
  • Mfr. Part No. NTCSC0201E3223FLHT
Each
£0.56(exc. VAT)
Panasonic, EZJP Varistor 100pF, Varistor 6.8V, 0402 (1005M)
  • RS Stock No. 764-0775
  • Mfr. Part No. EZJP0V6R8GA
Each (In a Pack of 100)
£0.148(exc. VAT)
KEMET 100μF MnO2 Tantalum Capacitor 16V dc, T494 Series
  • RS Stock No. 648-0402P
  • Mfr. Part No. T494D107K016AT
Each (Supplied on a Reel)
£1.40(exc. VAT)
Through Hole Trimmer Potentiometer 0.5W Side Adjust Nidec Components
  • RS Stock No. 244-3984
  • Mfr. Part No. FT-63ETS501
Each (In a Pack of 10)
£0.225(exc. VAT)
KYOCERA AVX 470pF MLCC, 50V dc V, SMD
  • RS Stock No. 135-9014
  • Mfr. Part No. 08055A471KAT2A
Each (In a Bag of 100)
£0.026(exc. VAT)
Bourns, GMOV Varistor 4pF 6000A, Clamping 620V, Varistor 230 Vrms, 300 V dc
  • RS Stock No. 186-2128P
  • Mfr. Part No. GMOV-14D231K
Each (Supplied in a Bag)
£1.266(exc. VAT)
Murata 0.6pF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±0.05pF , SMD
  • RS Stock No. 114-0679
  • Mfr. Part No. GJM1555C1HR60WB01D
Each (In a Pack of 100)
£0.035(exc. VAT)
Panasonic 120μF Surface Mount Polymer Capacitor, 35V dc
  • RS Stock No. 210-5588P
  • Mfr. Part No. 35SVT120M
Each (Supplied on a Reel)
£2.475(exc. VAT)
Murata Ferrite Bead (Chip Ferrite Bead), 3.2 x 1.6 x 1.1mm (1206 (3216M)), 50Ω impedance at 100 MHz
  • RS Stock No. 724-1589
  • Mfr. Part No. BLM31PG500SN1L
Each (In a Pack of 25)
£0.134(exc. VAT)
Vishay 800W Thick Film Chassis Mount Resistor LPSA800H4R70JB ± 5%
  • RS Stock No. 212-1313
  • Mfr. Part No. LPSA800H4R70JB
Each (In a Box of 15)
£73.24(exc. VAT)
Vishay P11H 5kΩ Rotary Potentiometer 1-Gang Panel Mount, P11H1F0GHFY00502KA
  • RS Stock No. 239-8250
  • Mfr. Part No. P11H1F0GHFY00502KA
Each (In a Box of 25)
£13.132(exc. VAT)
KEMET R60 Metallised Polyester Film Capacitor, 200 V ac, 400 V dc, ±10%, 68nF, Through Hole
  • RS Stock No. 164-9771
  • Mfr. Part No. R60MF2680506AK
Each (In a Bag of 1800)
£0.213(exc. VAT)
Arcol, 4.7Ω 100W Aluminium Chassis Mount Resistor HS100 4R7 F ±1%
  • RS Stock No. 162-3484
  • Mfr. Part No. HS100 4R7 F
Each (In a Box of 45)
£5.721(exc. VAT)
TE Connectivity CRG 560kΩ, 1206 (3216M) Thick Film SMD Resistor ±1% 0.25W
  • RS Stock No. 223-2625
  • Mfr. Part No. CRG1206F560K
Each (In a Pack of 50)
£0.004(exc. VAT)
Wurth Elektronik 10μF Surface Mount Polymer Capacitor, 63V dc
  • RS Stock No. 257-0080
  • Mfr. Part No. 875115852001
Each
£2.10(exc. VAT)
KEMET 120μF Surface Mount Polymer Capacitor, 50V dc
  • RS Stock No. 209-5414
  • Mfr. Part No. A768MS127M1HLAV024
Each (On a Tape of 2)
£1.31(exc. VAT)
Molex 146236-0111 Plate Antenna
  • RS Stock No. 218-2099
  • Mfr. Part No. 146236-0111
Each (On a Tape of 20)
£1.037(exc. VAT)
Panasonic 150μF Surface Mount Polymer Capacitor, 63V dc
  • RS Stock No. 181-2289
  • Mfr. Part No. EEHZS1J151P
Each (In a Pack of 5)
£1.978(exc. VAT)
2MΩ, Through Hole Trimmer Potentiometer 0.5W Top Adjust Bourns, 3386
  • RS Stock No. 785-9632
  • Mfr. Part No. 3386F-1-205LF
Each
£1.18(exc. VAT)
Results per page
1
1237
7727

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