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

154833 Products showing for Passive Components

2202 of 999+
KEMET 330 μH 10% Coil Inductor, 700mA Idc
  • RS Stock No. 265-2701
  • Mfr. Part No. SBCP-80HY331H
Each
£1.27
Yageo 100nF MLCC, 25V dc V, ±10% , SMD
  • RS Stock No. 200-6579
  • Mfr. Part No. CC0603KRX7R8BB104
Each (On a Reel of 4000)
£0.006
KEMET 100nF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±5% , SMD
  • RS Stock No. 146-6329
  • Mfr. Part No. C1206C104J5RACTU
Each (On a Reel of 4000)
£0.029
Taoglas AA.166.A.301111 Square Multiband Antenna with SMA Connector, GPS
  • RS Stock No. 288-4328
  • Mfr. Part No. AA.166.A.301111
Each
£17.06
Wurth Elektronik 10μF Aluminium Electrolytic Capacitor 400V dc, Radial, Through Hole - 860021375011
  • RS Stock No. 163-7601
  • Mfr. Part No. 860021375011
Each (In a Box of 600)
£0.327
Wurth, WE-TPC, 2828 Shielded Wire-wound SMD Inductor with a Ferrite Core, 10 μH ±20% Wire-Wound 1A Idc
  • RS Stock No. 737-3636
  • Mfr. Part No. 744025100
Each (In a Bag of 10)
£1.20
Wurth, WE-HCI, 1890 Shielded Wire-wound SMD Inductor with a MnZn Core, 15 μH ±20% Flat Wire Winding 14A Idc
  • RS Stock No. 163-3704
  • Mfr. Part No. 74435571500
Each (On a Reel of 150)
£3.672
TE Connectivity, 1kΩ 16W Wire Wound Chassis Mount Resistor HSA101K0J ±5%
  • RS Stock No. 720-4959
  • Mfr. Part No. HSA101K0J
Each
£1.90
TE Connectivity, Corcom B 3A 250 V ac, Flange Mount RFI Filter, Spade, Single Phase
  • RS Stock No. 782-0971
  • Mfr. Part No. 3VB1
Each
£13.49
Murata 3.3nF MLCC, 250V ac V, ±10% , SMD
  • RS Stock No. 723-4932
  • Mfr. Part No. GA355QR7GF332KW01L
Each (In a Pack of 5)
£0.54
Eaton 0.33F Supercapacitor -20 → +80% Tolerance, 5.5V dc, Through Hole
  • RS Stock No. 169-9557
  • Mfr. Part No. KW-5R5C334-R
Each (In a Bag of 400)
£2.722
Yageo 43kΩ, 0402 (1005M) Thick Film Surface Mount Fixed Resistor ±1% 0.063W
  • RS Stock No. 242-3985
  • Mfr. Part No. RC0402FR-0743KL
Each (On a Tape of 100)
£0.004
TE Connectivity, 0204 (1005M) Resistor 1% 0.4W
  • RS Stock No. 472-765
  • Mfr. Part No. 1-2176334-1
Each (On a Reel of 6000)
£0.032
Wurth Elektronik 150μF Aluminium Electrolytic Capacitor 450V dc, Snap-In - 861141485015
  • RS Stock No. 125-0129
  • Mfr. Part No. 861141485015
Each (In a Tray of 50)
£4.837
Wurth Elektronik 100μF Aluminium Electrolytic Capacitor 25V dc, Surface Mount - 865090445008
  • RS Stock No. 838-7998
  • Mfr. Part No. 865090445008
Each (In a Pack of 10)
£0.43
Cornell-Dubilier 15000μF Aluminium Electrolytic Capacitor 25V dc, Snap-In - SLP153M025C4P3
  • RS Stock No. 744-1237
  • Mfr. Part No. SLP153M025C4P3
Each
£3.33
Vitrohm 1kΩ Through Hole Fixed Resistor 3W ±5% CRP300JT-73-1KAA
  • RS Stock No. 212-3615P
  • Mfr. Part No. CRP300JT-73-1KAA
Each (Supplied in a Box)
£0.379
ECS Inc International 40MHz TCXO Oscillator, HCMOS ±2.5ppm SMD HCMOSECS-TXO-2520-33-400-AN-TR
  • RS Stock No. 301-307
  • Mfr. Part No. ECS-TXO-2520-33-400-AN-TR
Each
£2.48
Vishay 1MΩ Metal Film Resistor 1W ±5% PR01000101004JA100
  • RS Stock No. 683-5427
  • Mfr. Part No. PR01000101004JA100
Each (In a Pack of 10)
£0.143
RND Carbon Film Carbon Film Resistor 250mW 5% RND 155RD14JN681T52
  • RS Stock No. 697-311
  • Mfr. Part No. RND 155RD14JN681T52
Each (In a Pack of 250)
£0.006
Results per page
1
2202
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