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

154820 Products showing for Passive Components

178 of 999+
TE Connectivity CRGH 10kΩ, 1206 (3216M) Thick Film SMD Resistor ±5% 0.5W
  • RS Stock No. 807-1108
  • Mfr. Part No. CRGH1206J10K
Each (In a Bag of 100)
£0.029
Vishay 1kΩ Metal Film Resistor 1W ±5% PR01000101001JA100
  • RS Stock No. 683-5382
  • Mfr. Part No. PR01000101001JA100
Each (In a Pack of 10)
£0.104
TE Connectivity 20MΩ Thick Film Resistor 1W ±1% HB120MFZRE
  • RS Stock No. 296-0588
  • Mfr. Part No. HB120MFZRE
Each
£6.55
Schurter, FPBB 15A 250 V ac/dc 50Hz, DIN Rail Power Line Filter, Single Phase
  • RS Stock No. 188-0384
  • Mfr. Part No. 3-103-713
Each
£22.65
RS PRO 10000μF Aluminium Electrolytic Capacitor 16V dc, Radial, Through Hole
  • RS Stock No. 711-1056
Each (In a Pack of 5)
£1.372
Vishay CRCW 5.6kΩ, 0402 (1005M) Thick Film SMD Resistor ±1% 0.063W
  • RS Stock No. 678-9475P
  • Mfr. Part No. CRCW04025K60FKED
Each (Supplied on a Reel)
£0.026
Vishay CRCW 4.7kΩ, 0402 (1005M) Thick Film SMD Resistor ±1% 0.2W
  • RS Stock No. 812-1685P
  • Mfr. Part No. CRCW04024K70FKEDHP
Each (Supplied on a Reel)
£0.024
Murata 220pF MLCC, 50V dc V, ±5% , SMD
  • RS Stock No. 185-1855P
  • Mfr. Part No. GRM0335C1H221JA01D
Each (Supplied on a Reel)
£0.004
Murata 1nF MLCC, 25V dc V, ±10% , SMD
  • RS Stock No. 723-5152P
  • Mfr. Part No. GRM033R71E102KA01D
Each (Supplied on a Reel)
£0.001
Yageo 100pF MLCC, 50V dc V, ±1% , SMD
  • RS Stock No. 199-2139P
  • Mfr. Part No. CC0402FRNPO9BN101
Each (Supplied on a Reel)
£0.014
Vishay CRHV 50MΩ, 1206 (3216M) Thick Film SMD Resistor ±1% 0.3W
  • RS Stock No. 819-8736
  • Mfr. Part No. CRHV1206AF50M0FKET
Each
£4.39
TE Connectivity RN73 35.7kΩ, 0805 (2012M) Thin Film SMD Resistor ±0.1% 0.1W
  • RS Stock No. 215-4143
  • Mfr. Part No. RN73C2A35K7B
Each (In a Pack of 5)
£0.644
Panasonic 1000μF Aluminium Electrolytic Capacitor 63V dc, Radial, Through Hole - ECA1JM102
  • RS Stock No. 228-7013
  • Mfr. Part No. ECA1JM102
Each (In a Pack of 5)
£1.092
EPCOS, B84742A 25A 500 V ac, Through Hole EMC Filter, Terminal Block, Single Phase
  • RS Stock No. 279-7935
  • Mfr. Part No. B84742A0025R190
Each
£78.18
TE Connectivity 499Ω Metal Film Resistor 0.25W ±0.1% H8499RBYA
  • RS Stock No. 701-7291
  • Mfr. Part No. H8499RBYA
Each (In a Pack of 5)
£1.38
Panasonic 68μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - EEUHD1E680
  • RS Stock No. 744-2035P
  • Mfr. Part No. EEUHD1E680
Each (Supplied in a Bag)
£0.24
TE Connectivity CPF 47kΩ, 0805 (2012M) Thin Film SMD Resistor ±0.1% 0.1W
  • RS Stock No. 666-2654
  • Mfr. Part No. CPF0805B47KE
Each (In a Pack of 5)
£0.19
KYOCERA AVX 4.7pF Multilayer Ceramic Capacitor MLCC, 200V dc V, ±0.25pF , SMD
  • RS Stock No. 698-4106
  • Mfr. Part No. 08052U4R7CAT2A
Each (In a Pack of 5)
£0.256
TDK, VLS-EX, 6045 Shielded Wire-wound SMD Inductor with a Ferrite Core Core, 470 μH 0.2% Shielded 400mA Idc
  • RS Stock No. 213-8213
  • Mfr. Part No. VLS6045EX-471M
Each (On a Tape of 5)
£0.248
Yageo RC 330kΩ, 1206 (3216M) Thick Film SMD Resistor ±1% 0.5 W, 0.25 W
  • RS Stock No. 199-5833
  • Mfr. Part No. RC1206FR-07330KL
Each (On a Tape of 100)
£0.018
Results per page
1
178
7741

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