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

156876 Products showing for Passive Components

902 of 999+
EPCOS B32520 Polyester Film Capacitor, 63 V ac, 100 V dc, ±10%, 1μF, Through Hole
  • RS Stock No. 194-3586
  • Mfr. Part No. B32520C1105K000
Each (In a Box of 750)
£0.371
TE Connectivity Wirewound Wirewound Resistor 1W 5% EP1WSSS330RJ
  • RS Stock No. 272-2486
  • Mfr. Part No. EP1WSSS330RJ
Each (In a Box of 5000)
£0.037
Grayhill 5V dc Optical Encoder with a 6.35 mm Flat Shaft, Panel Mount, Pin
  • RS Stock No. 878-0583
  • Mfr. Part No. 62N30-P
Each
£73.70
EPCOS, B84111A 10A 250 V ac/dc 60Hz, Flange Mount EMC Filter, Tab, Single Phase
  • RS Stock No. 167-8282
  • Mfr. Part No. B84111A0000B110
Each (In a Box of 32)
£23.37
Panasonic 3300μF Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole - EEUFK1V332S
  • RS Stock No. 919-3432
  • Mfr. Part No. EEUFK1V332S
Each (In a Bag of 50)
£2.177
TE Connectivity L000423-10 Shark Fin Multi-Band Antenna with SMA Connector, 4G, 4G (LTE), 5G (LTE), Bluetooth (BLE),
  • RS Stock No. 276-6691
  • Mfr. Part No. L000423-10
Each (In a Box of 4)
£360.078
Wurth Elektronik 27μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - 860160472004
  • RS Stock No. 839-4445
  • Mfr. Part No. 860160472004
Each (In a Pack of 25)
£0.122
CTi AEB480/GPLS/LTE Puck Multiband Antenna, 2G (GSM/GPRS), 3G (UTMS), 4G (LTE), GPS
  • RS Stock No. 205-3348
  • Mfr. Part No. AEB480/GPLS/LTE
Each (In a Bag of 10)
£52.559
Arcol, 4.7kΩ 100W Wire Wound Chassis Mount Resistor HS100 4K7 J ±5%
  • RS Stock No. 615-0555
  • Mfr. Part No. HS100 4K7 J
Each
£11.75
Bourns 470Ω, 1206 (3216M) Thick Film Resistor 1% 250mW
  • RS Stock No. 247-7136
  • Mfr. Part No. CR1206-FX-4700ELF
Each (On a Tape of 500)
£0.008
ECS Inc International 16MHz Crystal Oscillator SMD 2-Pin 11.4 x 4.8mm
  • RS Stock No. 301-330
  • Mfr. Part No. ECS-160-20-5PX-TR
Each
£0.22
KEMET C4AF Polypropylene Capacitor PP, 310V ac, 10%, 10μF
  • RS Stock No. 207-8915
  • Mfr. Part No. C4AF9BW5100T3JK
Each
£3.92
KEMET C4AQ Metallised Polypropylene Film Capacitor, 1.5kV dc, ±5%, 6μF
  • RS Stock No. 174-4480
  • Mfr. Part No. C4AQSBW4600A3FJ
Each (In a Pack of 2)
£3.12
Nichicon 3300μF Aluminium Electrolytic Capacitor 6.3V dc, Radial, Through Hole - UVY0J332MPD
  • RS Stock No. 167-8152
  • Mfr. Part No. UVY0J332MPD
Each (In a Box of 200)
£0.237
TE Connectivity 23 4.7kΩ Rotary Potentiometer 1-Gang Panel Mount, 1624158-2
  • RS Stock No. 387-795
  • Mfr. Part No. 1624158-2
Each
£4.61
EPCOS, AdvancedD Metal Oxide Varistor 490pF 50A, Clamping 650V, Varistor 390V, 14 mm
  • RS Stock No. 241-6768
  • Mfr. Part No. B72214S2251K101
Each (In a Bag of 500)
£0.246
Fair-Rite Ferrite Bead (Radial)
  • RS Stock No. 255-5139
  • Mfr. Part No. 2944778301
Each (In a Pack of 5)
£1.00
AVX 1.5F Supercapacitor 5.4V dc, Through Hole
  • RS Stock No. 250-6977
  • Mfr. Part No. SCMR22D155PRBB0
Each
£3.07
KOA 10MΩ Ceramic Fixed Resistor 1W ±5% RCR60C106J
  • RS Stock No. 502-1103
  • Mfr. Part No. RCR60C106J
Each (In a Pack of 10)
£1.03
RS PRO 22kΩ Carbon Film Resistor 2W ±5%
  • RS Stock No. 707-8921P
Each (Supplied as a Tape)
£0.172
Results per page
1
902
7844

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