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

154518 Products showing for Passive Components

1152 of 999+
Nichicon 220μF Aluminium Electrolytic Capacitor 200V dc, Radial, Through Hole - UCS2D221MHD
  • RS Stock No. 165-4006
  • Mfr. Part No. UCS2D221MHD
Each (In a Box of 50)
£1.38(exc. VAT)
Vishay 2.4kΩ Thin Film Resistor 0.6W ±1% MRS25000C2401FCT00
  • RS Stock No. 683-3459P
  • Mfr. Part No. MRS25000C2401FCT00
Each (Supplied on a Reel)
£0.088(exc. VAT)
Sonitron 98dB Through Hole Continuous Internal Piezo Buzzer, 24 x 24 x 15.5mm, 1.5V dc Min, 15V dc Max
  • RS Stock No. 178-4024
  • Mfr. Part No. SMA-24L-P17.5
Each
£10.56(exc. VAT)
Nichicon 1000μF Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole - UHV1V102MHD
  • RS Stock No. 243-7307
  • Mfr. Part No. UHV1V102MHD
Each
£0.75(exc. VAT)
Panasonic 1000μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - EEUFP1E102
  • RS Stock No. 179-3201
  • Mfr. Part No. EEUFP1E102
Each (In a Pack of 10)
£0.755(exc. VAT)
Murata, LQH32MN, 1210 (3225M) Wire-wound SMD Inductor 10 μH ±10% Wire-Wound 190mA Idc Q:35
  • RS Stock No. 125-3125
  • Mfr. Part No. LQH32MN100K23L
Each (On a Reel of 2000)
£0.129(exc. VAT)
Murata, LQW31H, 1206 (3216M) Wire-wound SMD Inductor with a Ferrite Core, 27 nH ±10% Wire-Wound 560mA Idc Q:60
  • RS Stock No. 785-5472
  • Mfr. Part No. LQW31HN27NK03L
Each (In a Bag of 10)
£0.445(exc. VAT)
Panasonic 470Ω Metal Film SMD Resistor ±0.1% 0.1W
  • RS Stock No. 180-9776
  • Mfr. Part No. ERA3APB471V
Each (On a Reel of 500)
£0.145(exc. VAT)
TE Connectivity 330kΩ Metal Oxide Resistor 3W ±5% ROX3SJ330K
  • RS Stock No. 214-3092
  • Mfr. Part No. ROX3SJ330K
Each (In a Pack of 10)
£0.203(exc. VAT)
TE Connectivity 330Ω Through Hole Fixed Resistor 2W 10% HPCR0819AK330RST
  • RS Stock No. 240-5972P
  • Mfr. Part No. HPCR0819AK330RST
Each (Supplied on a Reel)
£5.39(exc. VAT)
EPCOS Ferrite Ring Toroid Core, For: Automotive Electronics, EMC Components, General Electronics, 26.6 x 13.5 x 11mm
  • RS Stock No. 125-3317
  • Mfr. Part No. B64290L0618X038
Each (In a Pack of 10)
£1.452(exc. VAT)
Yageo 68pF MLCC, 50V dc V, ±1% , SMD
  • RS Stock No. 199-2153P
  • Mfr. Part No. CC0402FRNPO9BN680
Each (Supplied on a Reel)
£0.019(exc. VAT)
Nichicon 330μF Through Hole Polymer Capacitor, 6.3V dc
  • RS Stock No. 714-9048
  • Mfr. Part No. PLS0J331MDL4
Each (In a Pack of 5)
£0.764(exc. VAT)
Wurth, WE-GF, 1210 (3225M) Wire-wound SMD Inductor with a Ferrite Core, 33 μH ±10% Wire-Wound 70mA Idc Q:30
  • RS Stock No. 367-4367
  • Mfr. Part No. 744764133
Each (In a Pack of 10)
£0.393(exc. VAT)
TE Connectivity CPF 120Ω, 0805 (2012M) Thin Film SMD Resistor ±0.1% 0.1W
  • RS Stock No. 666-2449
  • Mfr. Part No. CPF0805B120RE
Each (In a Pack of 5)
£0.064(exc. VAT)
ROHM, 0603 (1608M) Thick Film SMD Resistor ±1% 0.25W
  • RS Stock No. 263-0814
  • Mfr. Part No. ESR03EZPF1801
Each (On a Tape of 100)
£0.041(exc. VAT)
RS PRO, 150Ω 100W Wire Wound Chassis Mount Resistor ±5%
  • RS Stock No. 175-2430
Each
£9.33(exc. VAT)
Vishay 100μF Aluminium Electrolytic Capacitor 63V dc, Surface Mount - MAL215097803E3
  • RS Stock No. 280-0304
  • Mfr. Part No. MAL215097803E3
Each (On a Tape of 5)
£1.274(exc. VAT)
EPCOS Ferrite Ring Toroid Core, For: General Electronics, 50 (Dia.) x 30mm
  • RS Stock No. 167-8333
  • Mfr. Part No. B64290L0082X830
Each (In a Box of 40)
£6.27(exc. VAT)
KEMET C87 Metallised Polypropylene Film Capacitor, 470V ac, ±5%, 40μF, Chassis Mount
  • RS Stock No. 173-5134
  • Mfr. Part No. C878BF35400SA0J
Each (In a Bag of 50)
£17.401(exc. VAT)
Results per page
1
1152
7726

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