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

153324 Products showing for Passive Components

7537 of 999+
EPCOS, Standard Metal Oxide Varistor 11.1nF 20A, Clamping 77V, Varistor 39V
  • RS Stock No. 170-2884
  • Mfr. Part No. B72220S0250K101
Each (On a Reel of 250)
£0.454(exc. VAT)
EPCOS 6.8 mH ±30% Ferrite Power Line Choke, 2A Idc, 170mΩ Rdc 250 V ac, B82721A
  • RS Stock No. 772-0206
  • Mfr. Part No. B82724J2202N001
Each
£2.68(exc. VAT)
Vishay 1μF Tantalum Capacitor 35V dc, TMCU Series
  • RS Stock No. 188-2380
  • Mfr. Part No. TMCUB1V105KTRF
Each (In a Pack of 10)
£0.22(exc. VAT)
RS PRO 22kΩ, 1206 (3216M) Thick Film SMD Resistor ±5% 0.25W
  • RS Stock No. 713-1491
Each (On a Reel of 5000)
£0.004(exc. VAT)
EPCOS Thermistor, 400Ω Resistance, PTC Type, 1210 (3225M), 3.2 x 2.5 x 1.6mm
  • RS Stock No. 706-2838
  • Mfr. Part No. B59807A0090A062
Each (In a Pack of 5)
£0.612(exc. VAT)
Vishay CRCW 15kΩ, 0805 (2012M) Thick Film SMD Resistor ±1% 0.125W
  • RS Stock No. 679-0908
  • Mfr. Part No. CRCW080515K0FKEA
Each (In a Pack of 50)
£0.034(exc. VAT)
Bourns CRL 3.3Ω, 0805 (2012M) Thick Film SMD Resistor ±1% 0.125W
  • RS Stock No. 794-4140
  • Mfr. Part No. CRL0805-FW-3R30ELF
Each (In a Pack of 10)
£0.097(exc. VAT)
TANCAP TECHNOLOGY 3.3μF Electrolytic Tantalum Capacitor 35V dc, TBM Series
  • RS Stock No. 693-3915
  • Mfr. Part No. TBM1V335BECB
Each (In a Pack of 5)
£0.86(exc. VAT)
Murata Single Layer Ceramic Capacitor (SLCC) 10pF 1.5 kV dc, 500 Vrms ac ±10% SL(JIS) Dielectric, DE1, Through Hole
  • RS Stock No. 172-7773
  • Mfr. Part No. DE11XRA100KA4BQ01F
Each (In a Pack of 10)
£0.455(exc. VAT)
Arcol, 33Ω 100W Aluminium Chassis Mount Resistor HS100 33R F ±1%
  • RS Stock No. 162-3477
  • Mfr. Part No. HS100 33R F
Each (In a Box of 45)
£6.557(exc. VAT)
RS PRO 47kΩ, 0402 (1005M) Thick Film SMD Resistor ±1% 0.063W
  • RS Stock No. 804-7262
Each (On a Reel of 10000)
£0.002(exc. VAT)
EPCOS 820 μH ±20% Ferrite Leaded Inductor, Max SRF:3MHz, 500mA Idc, 2.5Ω Rdc 250 V, B82500C
  • RS Stock No. 167-8482
  • Mfr. Part No. B82500C0000A005
Each (In a Box of 250)
£1.55(exc. VAT)
Genteq GEM III 27L Metallised Polypropylene Film Capacitor, 370V ac, ±6%, 12.5μF
  • RS Stock No. 908-4662
  • Mfr. Part No. 27L572
Each
£13.85(exc. VAT)
Bourns, DR334A 500mA 42 V ac, 80 V dc 10000Hz, Panel Mount Power Line Filter, Single Phase
  • RS Stock No. 218-6274
  • Mfr. Part No. DR334A-475BE
Each (On a Tape of 5)
£1.018(exc. VAT)
Murata 390pF MLCC, 50V dc V, SMD
  • RS Stock No. 247-7959
  • Mfr. Part No. GRM1555C1H391FA01D
Each (On a Tape of 100)
£0.029(exc. VAT)
Murata 4.7nF Multilayer Ceramic Capacitor MLCC, 50V dc V, SMD
  • RS Stock No. 260-8746
  • Mfr. Part No. GCM155R71H472KA37J
Each (On a Reel of 50000)
£0.003(exc. VAT)
Bourns, DV Varistor 140pF 10A, Clamping 775V, Varistor 470V, 4032
  • RS Stock No. 204-8695
  • Mfr. Part No. DV300K4032R2
Each (On a Reel of 2000)
£0.33(exc. VAT)
Yageo 4.7nF MLCC, 1kV dc V, ±10% , SMD
  • RS Stock No. 199-2042P
  • Mfr. Part No. CC1206KKX7RCBB472
Each (Supplied on a Reel)
£0.147(exc. VAT)
TDK, SLF, 6028 Shielded Wire-wound SMD Inductor 100 μH ±20% Wire-Wound 640mA Idc
  • RS Stock No. 111-1024
  • Mfr. Part No. SLF6028T-101MR42-PF
Each (On a Reel of 1000)
£0.238(exc. VAT)
TE Connectivity Silicone Shielding Sheet, 1m x 225mm x 1.6mm
  • RS Stock No. 272-9210
  • Mfr. Part No. 480-0016-2250-10000
Each
£155.87(exc. VAT)
Results per page
1
7537
7667

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