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

152335 Products showing for Passive Components

1829 of 999+
Vishay Thermistor, 38 x 2.4mm
  • RS Stock No. 819-9170
  • Mfr. Part No. NTCLE300E3302SB
Each
£1.19(exc. VAT)
EPCOS B32522 Polyester Film Capacitor, 200 V ac, 630 V dc, ±5%, 100nF, Through Hole
  • RS Stock No. 334-978
  • Mfr. Part No. B32522Q8104J000
Each (In a Pack of 10)
£0.282(exc. VAT)
Same Sky Omni-Directional, Pin Mount Condenser Microphone Element -44dB
  • RS Stock No. 259-6175P
  • Mfr. Part No. CMC-5044PF-A
Each (Supplied in a Box)
£0.744(exc. VAT)
DiodesZetex 25MHz Crystal SMD 4-Pin 3.2 x 2.5mm
  • RS Stock No. 216-289
  • Mfr. Part No. FL2500283Z
Each
£0.56(exc. VAT)
Arcol 12.4kΩ Metal Film Resistor 0.25W ±0.1% MRA020712K4BTA015
  • RS Stock No. 487-7258
  • Mfr. Part No. MRA020712K4BTA015
Each (In a Pack of 5)
£0.552(exc. VAT)
Arcol 12.4kΩ Metal Film Resistor 0.25W ±0.1% MRA020712K4BTA015
  • RS Stock No. 487-7258P
  • Mfr. Part No. MRA020712K4BTA015
Each (Supplied as a Tape)
£0.552(exc. VAT)
Schaffner, FN2080 6A 250 V ac/dc 400Hz, Chassis Mount EMI Filter, Fast-On
  • RS Stock No. 170-5016
  • Mfr. Part No. FN2080-6-06
Each (In a Box of 20)
£29.23(exc. VAT)
KOA RN73H 2.2kΩ, 0402 (1005M) Thin Film SMD Resistor ±0.1% 0.06W
  • RS Stock No. 178-6335
  • Mfr. Part No. RN73H1ETTP2201B25
Each (On a Reel of 10000)
£0.047(exc. VAT)
Murata, LQG15HN, 0402 (1005M) Multilayer Surface Mount Inductor 47 nH ±5% Multilayer 200mA Idc Q:8
  • RS Stock No. 122-5360
  • Mfr. Part No. LQG15HN47NJ02D
Each (On a Reel of 10000)
£0.014(exc. VAT)
TDK 2.2nF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±10% , SMD
  • RS Stock No. 179-5515
  • Mfr. Part No. CGA3E2X8R1H222K080AA
Each (On a Reel of 500)
£0.015(exc. VAT)
Panasonic 100μF Surface Mount Polymer Capacitor, 25V dc
  • RS Stock No. 210-5574
  • Mfr. Part No. 25SVT100M
Each (On a Tape of 2)
£1.23(exc. VAT)
KEMET 220μF Surface Mount Polymer Capacitor, 6.3V dc
  • RS Stock No. 204-9721
  • Mfr. Part No. T598V227M006ATE025
Each (On a Tape of 1000)
£0.842(exc. VAT)
Phoenix Contact, VAL-US-120/65/2+0-FM Surge Suppressor Unit 120/240 V ac Maximum Voltage Rating 65kA Maximum Surge
  • RS Stock No. 239-5132
  • Mfr. Part No. 2910357
Each
£238.77(exc. VAT)
Abracon, 200MHz Clock Oscillator Oscillator, 25ppm LVDS SMD AX3DCF1-200.0000
  • RS Stock No. 266-441
  • Mfr. Part No. AX3DCF1-200.0000
Each
£6.26(exc. VAT)
Nichicon 4700μF Aluminium Electrolytic Capacitor 10V dc, Radial, Through Hole - UPS1A472MHD
  • RS Stock No. 519-3905P
  • Mfr. Part No. UPS1A472MHD
Each (Supplied in a Bag)
£0.726(exc. VAT)
Wurth Power Inductor 12μH
  • RS Stock No. 484-529P
  • Mfr. Part No. 744773112
Each (Supplied on a Reel)
£1.39(exc. VAT)
Nichicon 39μF Aluminium Electrolytic Capacitor 63V dc, Radial, Through Hole - UPW1J390MED
  • RS Stock No. 715-2925
  • Mfr. Part No. UPW1J390MED
Each (In a Pack of 10)
£0.191(exc. VAT)
Murata 100nF Multilayer Ceramic Capacitor MLCC, 1kV dc V, ±10% , SMD
  • RS Stock No. 169-6261
  • Mfr. Part No. GRM55DR73A104KW01L
Each (On a Reel of 1000)
£0.443(exc. VAT)
Panasonic 330μF Tantalum Capacitor 2.5V dc, TPE Series
  • RS Stock No. 230-6353
  • Mfr. Part No. ETPE330MIB
Each (On a Tape of 5)
£1.40(exc. VAT)
Panasonic, V Surge Absorber 350pF 25A, Clamping 455V, Varistor 270V
  • RS Stock No. 720-9894
  • Mfr. Part No. ERZV10D271
Each (In a Pack of 10)
£0.33(exc. VAT)
Results per page
1
1829
7617

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