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

1215 of 999+
331031271520, Contact Finger of Gold Plated Beryllium Copper With Mounting Screw 2.7mm x 1.5mm x 2mm
  • RS Stock No. 773-4230
  • Mfr. Part No. 331031271520
Each (In a Bag of 5)
£0.66(exc. VAT)
Samsung Electro-Mechanics 10μF MLCC, 16V dc V, SMD
  • RS Stock No. 257-5912P
  • Mfr. Part No. CL31B106KOHVPNE
Each (Supplied on a Reel)
£0.135(exc. VAT)
TDK 1μF Multilayer Ceramic Capacitor MLCC, 35V dc V, SMD
  • RS Stock No. 242-7290P
  • Mfr. Part No. C1005X5R1V105K050BC
Each (Supplied on a Reel)
£0.061(exc. VAT)
EPCOS, SIMID, 2220 (5650M) Unshielded Wire-wound SMD Inductor with a Ferrite Core, 820 μH ±10% Wire-Wound 170mA Idc Q:20
  • RS Stock No. 212-6040
  • Mfr. Part No. B82442T1824K000
Each (On a Tape of 5)
£0.76(exc. VAT)
TE Connectivity CPF 44.2kΩ, 0603 (1608M) Thin Film SMD Resistor ±0.1% 0.063W
  • RS Stock No. 122-8875
  • Mfr. Part No. CPF0603B44K2E1
Each (In a Bag of 20)
£0.242(exc. VAT)
KEMET R60 Polyester Film Capacitor, 160 V ac, 250 V dc, ±5%, 470nF, Through Hole
  • RS Stock No. 824-222
  • Mfr. Part No. R60II3470AA30J
Each (In a Pack of 5)
£0.826(exc. VAT)
Panasonic 1μF Aluminium Electrolytic Aluminium Electrolytic Capacitor 50V dc, Surface Mount - EEEHB1H1R0R
  • RS Stock No. 537-0815P
  • Mfr. Part No. EEEHB1H1R0R
Each (Supplied on a Reel)
£0.208(exc. VAT)
EPCOS 100 μH ±5% Ferrite Leaded Inductor, Max SRF:3.5MHz, Q:50, 600mA Idc, 700mΩ Rdc, LBC
  • RS Stock No. 191-1147
  • Mfr. Part No. B82144A2104J000
Each (In a Pack of 5)
£0.22(exc. VAT)
Vishay, VDRS - E Metal Oxide Varistor 140pF 10A, Clamping 710V, Varistor 430V
  • RS Stock No. 178-071P
  • Mfr. Part No. VDRS07H275BSE
Each (Supplied in a Bag)
£0.884(exc. VAT)
Arcol, 150mΩ 10W Wire Wound Chassis Mount Resistor HS10 R15 J ±5%
  • RS Stock No. 107-3188
  • Mfr. Part No. HS10 R15 J
Each
£1.90(exc. VAT)
Murata Thermistor, 100kΩ Resistance, NTC Type, 0402 (1005M), 1 x 0.5 x 0.5mm
  • RS Stock No. 786-9449P
  • Mfr. Part No. NCP15WF104F03RC
Each (Supplied on a Reel)
£0.07(exc. VAT)
Wurth Elektronik 150 μH 20 A Common Mode Choke 1.9mΩ
  • RS Stock No. 168-3314
  • Mfr. Part No. 7448680180
Each
£6.36(exc. VAT)
RS PRO 2.2kΩ Carbon Film Resistor 0.5W ±5%
  • RS Stock No. 739-8777
Each (In a Pack of 5000)
£0.01(exc. VAT)
Rubycon 220μF Aluminium Electrolytic Capacitor 16V dc, Radial, Through Hole - 16ZLH220MEFC6.3X11
  • RS Stock No. 703-7497
  • Mfr. Part No. 16ZLH220MEFC6.3X11
Each (In a Pack of 25)
£0.094(exc. VAT)
Bourns, SRN6045, 6045 Shielded Wire-wound SMD Inductor with a Ferrite Core, 68 μH ±20% Semi-Shielded 0.9A Idc
  • RS Stock No. 743-5135P
  • Mfr. Part No. SRN6045-680M
Each (Supplied on a Reel)
£0.242(exc. VAT)
Vishay 215Ω Thin Film Resistor 0.6W ±1% MRS25000C2150FCT00
  • RS Stock No. 683-3308
  • Mfr. Part No. MRS25000C2150FCT00
Each (In a Pack of 25)
£0.104(exc. VAT)
Vishay 1Ω Thick Film Resistor 20W ±5% RTO020F1R000JTE3
  • RS Stock No. 789-1244P
  • Mfr. Part No. RTO020F1R000JTE3
Each (Supplied in a Tube)
£11.196(exc. VAT)
Murata 3.3nF MLCC, 50V dc V, ±5% , SMD
  • RS Stock No. 169-4115
  • Mfr. Part No. GRM1885C1H332JA01D
Each (On a Reel of 4000)
£0.02(exc. VAT)
Vishay 10μF MnO2 Tantalum Capacitor 20V dc, TR3 Series
  • RS Stock No. 173-3657
  • Mfr. Part No. TR3B106K020C1000
Each (On a Reel of 2000)
£0.224(exc. VAT)
RS PRO 3.9kΩ, 0805 (2012M) Thick Film SMD Resistor ±1% 0.125W
  • RS Stock No. 804-6492
Each (On a Reel of 5000)
£0.004(exc. VAT)
Results per page
1
1215
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