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

1304 of 999+
Bourns, SRR1208, 1208 Shielded Wire-wound SMD Inductor with a Ferrite DR & RI Core, 220 μH ±10% Wire-Wound 1.1A Idc Q:13
  • RS Stock No. 172-7178
  • Mfr. Part No. SRR1208-221KL
Each (On a Reel of 400)
£0.424(exc. VAT)
RS PRO 81dB Fast Pulse Piezo Buzzer, 42.5 (Dia.) x 42mm, 60V ac/dc Min, 250V ac/dc Max
  • RS Stock No. 181-2680
Each (In a Box of 160)
£6.666(exc. VAT)
Phoenix Contact, VAL-MS 320/1+1 Surge Protector 240 V ac, 415 V ac Maximum Voltage Rating 40kA Maximum Surge Current
  • RS Stock No. 802-6669
  • Mfr. Part No. 2804380
Each
£172.03(exc. VAT)
Molex 146153-0050 T-Bar WiFi Antenna with MHF Connector, WiFi (Dual Band)
  • RS Stock No. 218-2040
  • Mfr. Part No. 146153-0050
Each (On a Tape of 32)
£1.45(exc. VAT)
EPCOS, Standard Metal Oxide Varistor 5.2nF 5A, Clamping 43V, Varistor 22V
  • RS Stock No. 289-6746
  • Mfr. Part No. B72210S0140K101
Each (In a Pack of 5)
£0.478(exc. VAT)
Wurth Elektronik 1000μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - 860010475017
  • RS Stock No. 163-6094
  • Mfr. Part No. 860010475017
Each (In a Box of 500)
£0.28(exc. VAT)
Yageo 47pF Multilayer Ceramic Capacitor MLCC, 500V dc V, ±5% , SMD
  • RS Stock No. 669-8628P
  • Mfr. Part No. 223897111532
Each (Supplied on a Reel)
£0.08(exc. VAT)
TE Connectivity, 47Ω 10W Wire Wound Chassis Mount Resistor THS1047RJ ±5%
  • RS Stock No. 754-7578
  • Mfr. Part No. THS1047RJ
Each
£2.91(exc. VAT)
Elma 14.5mm Black Potentiometer Knob Cap, 040-3025
  • RS Stock No. 243-9580
  • Mfr. Part No. 040-3025
Each
£1.78(exc. VAT)
Arcol, 4.7Ω 15W Wire Wound Chassis Mount Resistor HS15 4R7 J ±5%
  • RS Stock No. 166-4216
  • Mfr. Part No. HS15 4R7 J
Each (In a Bag of 100)
£2.272(exc. VAT)
Arcol 600mΩ Fixed Resistor 50W ±5% AP851 R6 J
  • RS Stock No. 809-8746
  • Mfr. Part No. AP851 R6 J
Each
£6.11(exc. VAT)
KEMET 2.2 mH 10% Coil Inductor, 770mA Idc
  • RS Stock No. 265-2529
  • Mfr. Part No. SBC7-222-421
Each
£1.74(exc. VAT)
RS PRO 8.2nF Mica Capacitor 500V dc ±1% Tolerance Radial
  • RS Stock No. 495-947
Each
£37.92(exc. VAT)
Yageo 1μF MLCC, 50V dc V, ±10% , SMD
  • RS Stock No. 199-2451
  • Mfr. Part No. CC2220KKX7R9BB105
Each (On a Tape of 10)
£0.435(exc. VAT)
Bourns 10Ω, 0402 (1005M) Thick Film SMD Resistor 1% 63mW
  • RS Stock No. 223-1671
  • Mfr. Part No. CR0402-FX-10R0GLF
Each (On a Tape of 100)
£0.003(exc. VAT)
Yageo 10pF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±5% , SMD
  • RS Stock No. 461-3975
  • Mfr. Part No. 223886115109
Each (In a Pack of 50)
£0.018(exc. VAT)
Wurth Elektronik, WE-CLFS 12A 250 V 50/60Hz, Chassis Mount EMC Filter, Fast-On, Single Phase
  • RS Stock No. 185-7281
  • Mfr. Part No. 810912012
Each
£19.26(exc. VAT)
QANTEK, 25MHz XO Oscillator, ±50ppm HCMOS, 14-Pin DIP14 QX14T50B25.00000B50TT
  • RS Stock No. 796-0536
  • Mfr. Part No. QX14T50B25.00000B50TT
Each
£3.75(exc. VAT)
Murata 220pF Multilayer Ceramic Capacitor MLCC, 100V dc V, ±5pF , Through Hole
  • RS Stock No. 133-5708P
  • Mfr. Part No. RDE5C2A221J0M1H03A
Each (Supplied in a Box)
£0.208(exc. VAT)
Arcol 10kΩ Thick Film Resistor 10W ±5% FCR10 10K J
  • RS Stock No. 874-4067P
  • Mfr. Part No. FCR10 10K J
Each (Supplied in a Bag)
£7.91(exc. VAT)
Results per page
1
1304
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