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

155496 Products showing for Passive Components

844 of 999+
TDK 1μF Multilayer Ceramic Capacitor MLCC, 16V dc V, SMD
  • RS Stock No. 242-7461
  • Mfr. Part No. CGA3E1X8L1C105K080AC
Each (In a Pack of 10)
£0.134
KEMET Ferrite Bead (Chip Bead), 0.177 x 0.063 x 0.063mm (Tape & Reel), 56.1Ω impedance at 25 MHz, 72Ω impedance at 100
  • RS Stock No. 225-7862
  • Mfr. Part No. Z1806C720APWST
Each (On a Tape of 10)
£0.135
KEMET 1nF Multilayer Ceramic Capacitor MLCC, 200V dc V, ±10% , SMD
  • RS Stock No. 137-2795
  • Mfr. Part No. C0603C102K2RECAUTO
Each (In a Pack of 50)
£0.068
TDK 220nF Multilayer Ceramic Capacitor MLCC, 250V dc V, ±10% , SMD
  • RS Stock No. 740-7789P
  • Mfr. Part No. C3225X7R2E224K200AA
Each (Supplied on a Reel)
£0.266
RS PRO 77dB Through Hole Continuous Internal Piezo Buzzer, 30 x 20mm, 3V dc Min, 24V dc Max
  • RS Stock No. 617-3053
Each
£5.60
RS PRO 1.5μF Electrolytic Tantalum Electrolytic Capacitor 35V dc
  • RS Stock No. 181-4592
Each (In a Bag of 1000)
£0.143
Murata 1μF Multilayer Ceramic Capacitor MLCC, 6.3V dc V, ±20% , SMD
  • RS Stock No. 169-2708
  • Mfr. Part No. GRM155R70J105MA12D
Each (On a Reel of 10000)
£0.008
Nichicon 470μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - UPW1H471MHD1TO
  • RS Stock No. 222-9625
  • Mfr. Part No. UPW1H471MHD1TO
Each (On a Tape of 500)
£0.312
Panasonic, 0402 (1005M) Thick Film Surface Mount Fixed Resistor ±1% 0.1W
  • RS Stock No. 287-605P
  • Mfr. Part No. ERJ2RKF3301X
Each (Supplied on a Reel)
£0.006
KEMET 47μF Aluminium Electrolytic Capacitor 100V dc, Axial, Through Hole - PEG124PD247VQL1
  • RS Stock No. 172-6751
  • Mfr. Part No. PEG124PD247VQL1
Each (In a Box of 200)
£2.523
CSTNE8M00G520000R0, Ceramic Resonator, 8MHz 10pF, 3-Pin SMD, 3.20 x 1.30 x 0.70mm
  • RS Stock No. 276-3697P
  • Mfr. Part No. CSTNE8M00G520000R0
Each (Supplied on a Reel)
£0.319
RS PRO 70dB Through Hole Continuous Internal Piezo Buzzer, 13.8 (Dia.) x 7mm, 3V dc Min, 16V dc Max
  • RS Stock No. 535-8146
Each (In a Bag of 5)
£1.86
SENCITY Rail MULTI 9-Port Antenna
  • RS Stock No. 560-320
  • Mfr. Part No. 1399.99.0165
Each
£1,964.42
Bourns 3590S 10kΩ Linear Potentiometer 10-Turns 1-Gang Panel Mount, 3590S-4-103L
  • RS Stock No. 181-4453
  • Mfr. Part No. 3590S-4-103L
Each
£18.26
10kΩ, Through Hole Trimmer Potentiometer 0.5W Top Adjust Vishay, 63P
  • RS Stock No. 154-3019
  • Mfr. Part No. M63P103KB40
Each
£4.05
TE Connectivity, 0603 (1608M) Thin Film Surface Mount Fixed Resistor 0.1% 0.5W
  • RS Stock No. 238-9832P
  • Mfr. Part No. RA73F1J221RBTDF
Each (Supplied on a Reel)
£1.60
TE Connectivity 68Ω Wire Wound Resistor 11W ±5% SBCHE1168RJ
  • RS Stock No. 206-1388
  • Mfr. Part No. SBCHE1168RJ
Each (In a Pack of 5)
£1.30
KEMET R46 Metallised Polypropylene Film Capacitor, 310V ac, ±10%, 680nF, Through Hole
  • RS Stock No. 875-2282P
  • Mfr. Part No. R463R368050M1K
Each (Supplied in a Bag)
£1.039
KEMET R41-T Metallised Polypropylene Film Capacitor, 1.5 kV dc, 300 V ac, ±10%, 47nF, Through Hole
  • RS Stock No. 197-2055
  • Mfr. Part No. R413N247050T0K
Each (In a Pack of 10)
£0.467
ESTV(50)-9X10MT0859, Shielding Strip of Polymer base blended with micron sized magnetic powders With Tape 10m x 9mm x
  • RS Stock No. 444-678
  • Mfr. Part No. ESTV(50)-9X10MT0859
Each
£38.35
Results per page
1
844
7775

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