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

154521 Products showing for Passive Components

696 of 999+
TE Connectivity Ferrite Bead (1204)
  • RS Stock No. 245-5782
  • Mfr. Part No. BMC2CY0031AN
Each (On a Tape of 10)
£0.098(exc. VAT)
KYOCERA AVX 1nF MLCC, 3kV dc V, ±10% , SMD
  • RS Stock No. 135-0216
  • Mfr. Part No. 1812HC102KAZ2A
Each (On a Reel of 1000)
£0.431(exc. VAT)
Vishay 220Ω Thin Film Resistor 0.4W ±1% MRS16000C2200FCT00
  • RS Stock No. 683-2783
  • Mfr. Part No. MRS16000C2200FCT00
Each (In a Pack of 25)
£0.083(exc. VAT)
KEMET 1 mH 15 A Common Mode Choke 12mΩ
  • RS Stock No. 863-3847
  • Mfr. Part No. SC-15-10J
Each
£5.19(exc. VAT)
RS PRO Potentiometer Dial for Collet Knob
  • RS Stock No. 468-0701
Each (In a Pack of 10)
£1.101(exc. VAT)
KYOCERA AVX 470nF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±10% , SMD
  • RS Stock No. 698-3807
  • Mfr. Part No. 12105C474KAZ2A
Each (In a Pack of 10)
£0.23(exc. VAT)
Panasonic 330μF Aluminium Electrolytic Capacitor 35V dc, Surface Mount - EEEFH1V331L
  • RS Stock No. 215-8455
  • Mfr. Part No. EEEFH1V331L
Each (On a Tape of 10)
£0.684(exc. VAT)
Wurth, 2920 Wire-wound SMD Inductor 470 μH 3.7A Idc
  • RS Stock No. 258-5681
  • Mfr. Part No. 74437529203471
Each
£7.95(exc. VAT)
Bourns, 7028 Power Inductor 6.8 μH 4.5A Idc
  • RS Stock No. 247-6145
  • Mfr. Part No. SRP7028AA-6R8M
Each
£1.06(exc. VAT)
KEMET 7.1 mH 2 A Common Mode Choke 140mΩ 250V
  • RS Stock No. 186-1178
  • Mfr. Part No. SSHB21HS-R20071
Each (In a Pack of 5)
£2.322(exc. VAT)
TE Connectivity 270mΩ Wire Wound Resistor 3W ±10% ER74R27KT
  • RS Stock No. 151-524
  • Mfr. Part No. ER74R27KT
Each (In a Pack of 5)
£0.824(exc. VAT)
Panasonic ERA 220Ω, 0805 (2012M) Thin Film SMD Resistor ±0.1% 0.125W
  • RS Stock No. 566-913
  • Mfr. Part No. ERA6AEB221V
Each (In a Pack of 5)
£0.11(exc. VAT)
KEMET 22μF Multilayer Ceramic Capacitor MLCC, 10V dc V, ±10% , SMD
  • RS Stock No. 803-0056
  • Mfr. Part No. C1210C226K8RACTU
Each (In a Pack of 2)
£0.80(exc. VAT)
KEMET 6.8 mH 10% Coil Inductor, 110mA Idc
  • RS Stock No. 265-2402
  • Mfr. Part No. SBC3-682-111
Each
£0.93(exc. VAT)
TE Connectivity 3.3Ω Wire Wound Resistor 17W ±10% SBCHE153R3K
  • RS Stock No. 206-1596
  • Mfr. Part No. SBCHE153R3K
Each (In a Pack of 5)
£1.658(exc. VAT)
TE Connectivity 68Ω Carbon Composition Resistor 0.25W ±5% CBT25J68R
  • RS Stock No. 806-6512
  • Mfr. Part No. CBT25J68R
Each (In a Pack of 10)
£0.36(exc. VAT)
Wurth, 1090 Wire-wound SMD Inductor 2.2 μH 16A Idc
  • RS Stock No. 248-8281
  • Mfr. Part No. 78439369022
Each (On a Reel of 300)
£2.585(exc. VAT)
NISSEI MMX Polyester Film Capacitor, 630V dc, ±10%, 4.7nF, Through Hole
  • RS Stock No. 183-3234
  • Mfr. Part No. MMX0630K47200000000
Each (In a Pack of 10)
£0.355(exc. VAT)
Wurth Elektronik, 32.768kHz SPXO Crystal Oscillator, ±30ppm CMOS SMT 830207370001
  • RS Stock No. 276-6721
  • Mfr. Part No. 830207370001
Each (On a Reel of 3000)
£1.691(exc. VAT)
10kΩ, Through Hole Trimmer Potentiometer 0.5W Top Adjust Bourns, 3299
  • RS Stock No. 522-0293
  • Mfr. Part No. 3299W-1-103LF
Each
£2.32(exc. VAT)
Results per page
1
696
7727

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