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

154829 Products showing for Passive Components

1077 of 999+
Micro Crystal 10MHz OCXO Oscillator, PDIP ±0.2ppm HCMOSOCXOV-AV5-10.000
  • RS Stock No. 729-3329
  • Mfr. Part No. OCXOV-AV5-10.000
Each
£323.37
KEMET 47000μF Aluminium Electrolytic Capacitor 63V dc, Screw Terminal - ALS30A473MF063
  • RS Stock No. 173-4273
  • Mfr. Part No. ALS30A473MF063
Each (In a Bag of 16)
£34.636
Yageo 1kΩ, 0805 (2012M) Thick Film SMD Resistor ±5% 0.25 W, 0.125 W
  • RS Stock No. 199-5762
  • Mfr. Part No. RC0805JR-071KL
Each (On a Tape of 100)
£0.007
EPCOS, B85321A, EMI Filter, 600 V 50 Hz, 60 Hz, 500A, Through Hole, 80 x 16mm
  • RS Stock No. 280-4965
  • Mfr. Part No. B85321A2205A501
Each
£292.69
Ezurio EFF6989A3S-19MHF1 Patch Multiband Antenna
  • RS Stock No. 210-7161
  • Mfr. Part No. EFF6989A3S-19MHF1
Each (In a Pack of 2)
£2.47
Vishay CRCW 120kΩ, 1206 (3216M) Thick Film SMD Resistor ±1% 0.25W
  • RS Stock No. 679-1783
  • Mfr. Part No. CRCW1206120KFKEA
Each (In a Pack of 50)
£0.042
Vishay CRCW 100Ω, 0805 (2012M) Thick Film SMD Resistor ±1% 0.125W
  • RS Stock No. 679-0807
  • Mfr. Part No. CRCW0805100RFKEA
Each (In a Pack of 50)
£0.015
TDK 10μF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±10% , SMD
  • RS Stock No. 108-4060
  • Mfr. Part No. C3216X5R1H106K160AB
Each (On a Reel of 2000)
£0.229
Vishay, IHLP-5050FD-01, 5050 Shielded Wire-wound SMD Inductor with a Metal Composite Core, 10 μH ±20% Shielded 10A Idc
  • RS Stock No. 748-7460P
  • Mfr. Part No. IHLP5050FDER100M01
Each (Supplied on a Reel)
£1.43
KEMET 22nF MLCC, 250V ac V, ±10% , SMD
  • RS Stock No. 186-1199
  • Mfr. Part No. CAN12X223KARACTU
Each (In a Pack of 10)
£0.634
KEMET Polymer, Magnetic Shielding Sheet, 240mm x 240mm x 0.025mm
  • RS Stock No. 181-5600
  • Mfr. Part No. FG1(25)-240X240T2900
Each (In a Bag of 30)
£13.661
Panasonic 3300μF Aluminium Electrolytic Capacitor 16V dc, Radial, Through Hole - EEUHD1C332
  • RS Stock No. 744-2004
  • Mfr. Part No. EEUHD1C332
Each (In a Pack of 2)
£1.645
Vishay PE30 4.7kΩ Rotary Potentiometer 1-Gang Panel Mount, PE30L0FR472KAB
  • RS Stock No. 790-4299
  • Mfr. Part No. PE30L0FR472KAB
Each
£31.18
Abracon AEACBK081014-M698 Puck GSM & GPRS Antenna with SMA Male Connector, 4G (LTE)
  • RS Stock No. 250-5164
  • Mfr. Part No. AEACBK081014-M698
Each
£23.79
Nichicon 4700μF Aluminium Electrolytic Capacitor 35V dc, Snap-In - LLS1V472MELZ
  • RS Stock No. 846-7088
  • Mfr. Part No. LLS1V472MELZ
Each (In a Pack of 2)
£1.905
KEMET Openable Ferrite Ring, 20.2 x 39 x 20mm, For Consumer Electronics, Apertures: 1, Diameter 9mm
  • RS Stock No. 811-9124
  • Mfr. Part No. ESD-SR-160
Each
£2.84
Vishay 750kΩ Metal Film Resistor 1W ±5% PR01000107503JA100
  • RS Stock No. 683-5584
  • Mfr. Part No. PR01000107503JA100
Each (In a Pack of 10)
£0.232
Murata 1nF MLCC, 50V dc V, ±5% , SMD
  • RS Stock No. 723-5795P
  • Mfr. Part No. GRM1885C1H102JA01D
Each (Supplied on a Reel)
£0.013
RS PRO 80dB Through Hole Continuous Internal Buzzer, 24 (Dia.) x 9mm, 3V dc Min, 20V dc Max
  • RS Stock No. 535-8225
Each
£3.94
Vishay MMU 39Ω, Melf 0102 Thin Film SMD Resistor ±1% 0.2W
  • RS Stock No. 180-3870
  • Mfr. Part No. MMU01020C3909FB300
Each (On a Reel of 500)
£0.077
Results per page
1
1077
7742

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