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

154451 Products showing for Passive Components

1833 of 999+
Vishay PTC Thermistor, 22Ω Resistance, PTC Type, 8.5 x 5.5mm
  • RS Stock No. 179-3928P
  • Mfr. Part No. PTCCL09H171HBE
Each (Supplied in a Box)
£0.755(exc. VAT)
RS PRO 499kΩ, 2512 Thick Film Resistor ±1% 1W
  • RS Stock No. 256-7819
Each (On a Tape of 25)
£0.316(exc. VAT)
Bourns, SRU6025, 6025 Shielded Wire-wound SMD Inductor with a Ferrite DR & RI Core, 6.8 μH ±30% Wire-Wound 2.4A Idc Q:8
  • RS Stock No. 172-7156
  • Mfr. Part No. SRU6025-6R8Y
Each (On a Reel of 600)
£0.304(exc. VAT)
Vishay P11P 10kΩ Rotary Potentiometer 1-Gang Panel Mount, P11P1F0GGSY00103KA
  • RS Stock No. 743-5715
  • Mfr. Part No. P11P1F0GGSY00103KA
Each
£14.11(exc. VAT)
AKER 6MHz Crystal ±30ppm SMD 4-Pin 7 x 5 x 1.1mm
  • RS Stock No. 671-9371
  • Mfr. Part No. C7S-6.000-12-3030-X
Each (In a Pack of 5)
£1.692(exc. VAT)
Vishay 22MΩ Metal Glaze Resistor 0.5W ±5% VR37000002205JA100
  • RS Stock No. 484-4472P
  • Mfr. Part No. VR37000002205JA100
Each (Supplied as a Tape)
£0.207(exc. VAT)
Abracon 32.768kHz Crystal Unit ±30ppm SMD 4-Pin 8 x 3.8 x 2.5mm
  • RS Stock No. 171-2317
  • Mfr. Part No. ABS25-32.768KHZ-6-T
Each (On a Reel of 3000)
£0.301(exc. VAT)
TE Connectivity CRGH 309kΩ, 0603 (1608M) Thick Film SMD Resistor ±1% 0.2W
  • RS Stock No. 807-5412P
  • Mfr. Part No. CRGH0603F309K
Each (Supplied on a Reel)
£0.01(exc. VAT)
2kΩ, Through Hole Trimmer Potentiometer 0.5W Top Adjust Bourns, 3296
  • RS Stock No. 167-3384
  • Mfr. Part No. 3296W-1-202LF
Each (In a Tube of 50)
£1.424(exc. VAT)
Schaffner, FN2070 6A 250 V ac/dc 400Hz, Chassis Mount EMI Filter, Wire Lead, Single Phase
  • RS Stock No. 776-1165
  • Mfr. Part No. FN2070-6-07
Each
£32.08(exc. VAT)
KEMET C4DE Metallised Polypropylene Film Capacitor, 600V dc, ±10%, 150μF, Flange Mount
  • RS Stock No. 137-2338
  • Mfr. Part No. C4DEHPQ6150A8TK
Each (In a Box of 12)
£54.279(exc. VAT)
TDK, SLF, 7045 Shielded Wire-wound SMD Inductor with a Ferrite Core, 22 μH ±20% Wire-Wound 1.34A Idc
  • RS Stock No. 916-4248
  • Mfr. Part No. SLF7045T-220MR90-PF
Each (In a Pack of 10)
£0.333(exc. VAT)
Murata 31.25MHz Crystal ±20ppm Cap Chip 3-Pin 2 x 1.6 x 0.7mm
  • RS Stock No. 167-4855
  • Mfr. Part No. XRCGB31M250F2P00R0
Each (On a Reel of 3000)
£0.141(exc. VAT)
Panasonic 330μF Surface Mount Polymer Capacitor, 6.3V dc
  • RS Stock No. 103-8649
  • Mfr. Part No. 6TPB330MAL
Each (On a Reel of 2500)
£0.422(exc. VAT)
Panasonic 15μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - EEUFC1H150
  • RS Stock No. 919-3619
  • Mfr. Part No. EEUFC1H150
Each (In a Bag of 200)
£0.08(exc. VAT)
Schneider Electric Power Factor Correction Capacitor (PFC) 200kvar
  • RS Stock No. 341-080
  • Mfr. Part No. VLVAF2P03512AC
Each
£14,917.44(exc. VAT)
KEMET 680μF Surface Mount Polymer Capacitor, 6.3V dc
  • RS Stock No. 181-2330
  • Mfr. Part No. T520Y687M006ATE018
Each (On a Reel of 500)
£1.12(exc. VAT)
Vishay MKP Polypropylene Film Film Capacitor, 1.3kV dc, 5%, 1μF, Through Hole
  • RS Stock No. 637-743
  • Mfr. Part No. MKP1848e51013JK2
Each
£1.48(exc. VAT)
Wurth, WE-TPC, 8012 Shielded Wire-wound SMD Inductor with a Ferrite Core, 6.8 μH ±20% Wire-Wound 1.4A Idc
  • RS Stock No. 800-8125
  • Mfr. Part No. 7440680068
Each
£1.67(exc. VAT)
RS PRO 1μF Aluminium Electrolytic Capacitor 63V dc, Radial, Through Hole
  • RS Stock No. 181-5103
Each (In a Bag of 1000)
£0.036(exc. VAT)
Results per page
1
1833
7723

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