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

156885 Products showing for Passive Components

892 of 999+
Vishay 55W 10Ω Wirewound Rheostat, RT055AS10R0KB
  • RS Stock No. 167-9891
  • Mfr. Part No. RT055AS10R0KB
Each (In a Pack of 25)
£597.34
Vishay CRCW 33kΩ, 0603 (1608M) Thick Film SMD Resistor ±1% 0.1W
  • RS Stock No. 679-0232
  • Mfr. Part No. CRCW060333K0FKEA
Each (In a Pack of 50)
£0.013
KYOCERA AVX 47μF Electrolytic Tantalum Capacitor 35V dc, TPS Series
  • RS Stock No. 136-0035P
  • Mfr. Part No. TPSE476K035R0200
Each (Supplied on a Reel)
£2.184
TE Connectivity, 33Ω 75W Wire Wound Wire Wound Fixed Resistor HCF80J33RJ 10%
  • RS Stock No. 205-9506
  • Mfr. Part No. HCF80J33RJ
Each
£41.54
Bourns 3680 1kΩ Digital Display Potentiometer 2-Gang Panel Mount, 3682S-1-102L
  • RS Stock No. 167-3608
  • Mfr. Part No. 3682S-1-102L
Each (In a Box of 50)
£27.295
Phoenix Contact, PT-IQ-2X1-24DC-PT Surge Protection Device 21 V ac, 30 V dc Maximum Voltage Rating 10kA Maximum Surge
  • RS Stock No. 853-0082
  • Mfr. Part No. 2801247
Each
£210.22
Wurth Elektronik 33μF Surface Mount Polymer Capacitor, 10V dc
  • RS Stock No. 838-7443
  • Mfr. Part No. 875105242004
Each (In a Pack of 10)
£0.405
Yageo 1μF MLCC, 25V dc V, ±10% , SMD
  • RS Stock No. 199-2353P
  • Mfr. Part No. CC1210KKX7R8BB105
Each (Supplied on a Reel)
£0.143
Yageo 24.9kΩ, 0603 (1608M) Thick Film Surface Mount Fixed Resistor ±1% 0.1W
  • RS Stock No. 242-4084P
  • Mfr. Part No. RC0603FR-0724K9L
Each (Supplied on a Reel)
£0.006
KYOCERA AVX, VC Varistor 3nF 1A, Clamping 18V, Varistor 8.5V, 0805 (2012M)
  • RS Stock No. 166-7882
  • Mfr. Part No. VC080505C150DP
Each (On a Reel of 1000)
£0.10
Murata 100μF Multilayer Ceramic Capacitor MLCC, 6.3V dc V, ±20% , SMD
  • RS Stock No. 276-3772
  • Mfr. Part No. GRM31CD80J107MEA8L
Each (On a Reel of 2000)
£0.115
TE Connectivity L000321-01 Dome Multi-Band Antenna with SMA, Type N Connector, 4G (LTE), 4G (LTE Cat-M), 5G, NB-IoT
  • RS Stock No. 276-6668
  • Mfr. Part No. L000321-01
Each
£42.26
EPCOS 82 μH ±5% Ferrite Leaded Inductor, Max SRF:6MHz, Q:35, 390mA Idc, 1.54Ω Rdc, BC
  • RS Stock No. 191-0582
  • Mfr. Part No. B78108S1823J000
Each (In a Pack of 10)
£0.126
Rubycon 220μF Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole - 35YXG220MEFC10X12.5
  • RS Stock No. 704-8009P
  • Mfr. Part No. 35YXG220MEFC10X12.5
Each (Supplied in a Bag)
£0.274
Panasonic 1500Ω, 0402 Thick Film Resistor ±1% 0.1W
  • RS Stock No. 243-2037
  • Mfr. Part No. ERJU02F1501X
Each (On a Tape of 100)
£0.018
Yageo 4.7pF MLCC, 50V dc V, ±0.25pF , SMD
  • RS Stock No. 242-3902
  • Mfr. Part No. CC0603CRNPO9BN4R7
Each (On a Tape of 100)
£0.014
Vishay, Surface Mount Ceramic Capacitor Kit 15 pieces
  • RS Stock No. 788-0235
  • Mfr. Part No. VJ0402HIFRQ1KIT
1 Kit
£59.00
KYOCERA AVX 100pF Multilayer Ceramic Capacitor MLCC, 100V dc V, ±1% , SMD
  • RS Stock No. 135-6558
  • Mfr. Part No. 06031A101FAT2A
Each (In a Bag of 50)
£0.212
TDK 1nF Multilayer Ceramic Capacitor MLCC, 50V dc V, SMD
  • RS Stock No. 242-7330P
  • Mfr. Part No. C1608C0G1H102J080AE
Each (Supplied on a Reel)
£0.056
Vishay, 15kΩ 25W Thick Film Chassis Mount Resistor RCH25S15001JS06 ±5%
  • RS Stock No. 167-8854
  • Mfr. Part No. RCH25S15001JS06
Each (In a Bag of 25)
£10.684
Results per page
1
892
7845

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