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

154466 Products showing for Passive Components

774 of 999+
Bourns 91 10kΩ Rotary Potentiometer 1-Gang Panel Mount, 91A1D-C24-A15L
  • RS Stock No. 789-9434P
  • Mfr. Part No. 91A1D-C24-A15L
Each (Supplied in a Box)
£6.60(exc. VAT)
Yageo 4.7kΩ Metal Film Fixed Resistor 0.25W ±1% MFR25SFTF52-4K7
  • RS Stock No. 199-7689P
  • Mfr. Part No. MFR25SFTF52-4K7
Each (Supplied in a Box)
£0.015(exc. VAT)
Murata, LQW18A, 0603 (1608M) Unshielded Wire-wound SMD Inductor 47 nH ±2% Wire-Wound 380mA Idc Q:38
  • RS Stock No. 167-5723
  • Mfr. Part No. LQW18AN47NG00D
Each (On a Reel of 4000)
£0.051(exc. VAT)
KYOCERA AVX 47μF Surface Mount Polymer Capacitor, 35V dc
  • RS Stock No. 186-4744
  • Mfr. Part No. TCQU476M035R0070E
Each
£3.54(exc. VAT)
Abracon 25MHz Crystal ±20ppm SMD 6 x 3.5 x 1.4mm
  • RS Stock No. 171-0650P
  • Mfr. Part No. ABM7-25.000MHZ-D2Y-T
Each (Supplied on a Reel)
£0.417(exc. VAT)
Arcol, 68Ω 10W Wire Wound Chassis Mount Resistor HS10 68R J ±5%
  • RS Stock No. 160-354
  • Mfr. Part No. HS10 68R J
Each
£4.20(exc. VAT)
KEMET C4AT Polypropylene Film Capacitor, 350 V ac, 600 V dc, ±5%, 9μF, Through Hole
  • RS Stock No. 123-5136
  • Mfr. Part No. C4ATHBW4900A3LJ
Each
£8.24(exc. VAT)
Vishay 698Ω Thin Film Resistor 0.6W ±1% MRS25000C6980FCT00
  • RS Stock No. 683-3954P
  • Mfr. Part No. MRS25000C6980FCT00
Each (Supplied on a Reel)
£0.088(exc. VAT)
Arcol Ohmite 20kΩ Wire Wound Resistor 5W ±1% 45F20KE
  • RS Stock No. 124-9329
  • Mfr. Part No. 45F20KE
Each (In a Bag of 5)
£3.688(exc. VAT)
Panasonic, 0603 (1608M) Thick Film Surface Mount Fixed Resistor ±1% 0.1W
  • RS Stock No. 287-520P
  • Mfr. Part No. ERJ3EKF1002V
Each (Supplied on a Reel)
£0.006(exc. VAT)
Schneider Electric Power Factor Correction Capacitor (PFC) 50kvar
  • RS Stock No. 212-005
  • Mfr. Part No. LVR14500A40T
Each
£852.02(exc. VAT)
Arcol, 3.3Ω 150W Wire Wound Chassis Mount Resistor HS150E6 3R3 F M193 ±1%
  • RS Stock No. 195-4239
  • Mfr. Part No. HS150E6 3R3 F M193
Each (In a Bag of 12)
£9.56(exc. VAT)
Arcol 25W Wire Wound Chassis Mount Resistor HS25E3 220R F M145 ±1%
  • RS Stock No. 195-4069
  • Mfr. Part No. HS25E3 220R F M145
Each
£6.11(exc. VAT)
534-11503
  • RS Stock No. 607-344
  • Mfr. Part No. 534B1503JC
Each
£33.75(exc. VAT)
TDK 2.2μF Multilayer Ceramic Capacitor MLCC, 16V dc V, ±10% , SMD
  • RS Stock No. 915-5244
  • Mfr. Part No. CGA4J3X7R1C225K125AB
Each (In a Pack of 50)
£0.115(exc. VAT)
Yageo 100mΩ, 0805 (2012M) Thick Film SMD Resistor ±1% 0.125W
  • RS Stock No. 199-6066
  • Mfr. Part No. RL0805FR-070R1L
Each (On a Tape of 25)
£0.161(exc. VAT)
Panasonic 3900μF Aluminium Electrolytic Capacitor 10V dc, Radial, Through Hole - EEUFM1A392L
  • RS Stock No. 526-1187
  • Mfr. Part No. EEUFM1A392L
Each (In a Pack of 5)
£1.154(exc. VAT)
EPCOS, Standard Metal Oxide Varistor 530pF 50A, Clamping 595V, Varistor 360V
  • RS Stock No. 138-9299
  • Mfr. Part No. B72214S0231K101
Each (In a Bag of 20)
£0.30(exc. VAT)
Murata 10μF Multilayer Ceramic Capacitor MLCC, 100V dc V, SMD
  • RS Stock No. 260-8834
  • Mfr. Part No. GRM32EC72A106KE05K
Each (On a Reel of 4000)
£0.312(exc. VAT)
FUSS-EMV, 4F480 7A 528 V ac 50 → 60Hz, Panel Mount EMI Filter, Screw 3 Phase
  • RS Stock No. 866-1925
  • Mfr. Part No. 4F480-007.260
Each
£138.51(exc. VAT)
Results per page
1
774
7724

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