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

156876 Products showing for Passive Components

900 of 999+
Wurth 1 mH ±30% Ferrite Common Mode Choke, 3A Idc, 40mΩ Rdc 250 V ac, WE-LF
  • RS Stock No. 163-3292
  • Mfr. Part No. 7446223001
Each (In a Box of 91)
£3.476
KEMET 10000μF Aluminium Electrolytic Capacitor 63V dc, Solder Lug - ALT22A103CD063
  • RS Stock No. 173-5122
  • Mfr. Part No. ALT22A103CD063
Each (In a Bag of 100)
£11.79
Amphenol Advanced Sensors Thermistor
  • RS Stock No. 210-4320
  • Mfr. Part No. CL-30
Each (In a Bag of 2000)
£0.768
KEMET Ferrite Ring Ferrite Core, For: Consumer Electronics
  • RS Stock No. 811-9036
  • Mfr. Part No. ESD-R-25D
Each (In a Bag of 5)
£1.48
TE Connectivity 90.9Ω Metal Film Resistor 0.25W ±0.1% YR1B90R9CC
  • RS Stock No. 164-4655
  • Mfr. Part No. YR1B90R9CC
Each (In a Box of 1000)
£0.356
QANTEK 16MHz Crystal ±10ppm SMD 4-Pin 5 x 3.2 x 1mm
  • RS Stock No. 775-3701P
  • Mfr. Part No. QC5A16.0000F12B12
Each (Supplied on a Reel)
£0.412
Eclipse Ferrite Shielding Sheet, 150mm x 0.75mm x 0.75mm
  • RS Stock No. 269-6627
  • Mfr. Part No. FM650
Each (In a Pack of 5)
£8.93
Vishay 64X Series 19 (Electrical), 22 (Mechanical)-Turn Through Hole Trimmer Resistor with Pin Terminations, 100kΩ
  • RS Stock No. 154-2274
  • Mfr. Part No. M64X104KB40
Each
£3.12
Vishay 5600μF Aluminium Electrolytic Capacitor 100V dc, Snap-In - MAL225659562E3
  • RS Stock No. 173-3911
  • Mfr. Part No. MAL225659562E3
Each (In a Box of 40)
£4.629
Vishay 148 1kΩ Rotary Potentiometer 1-Gang, Panel Mount (Through Hole), 14810F0GJSX10102KA
  • RS Stock No. 484-9118
  • Mfr. Part No. 14810F0GJSX10102KA
Each
£7.05
Murata 22μF MLCC, 10V dc V, SMD
  • RS Stock No. 247-8101
  • Mfr. Part No. GRM21BR61A226ME51L
Each (On a Tape of 50)
£0.121
InvenSense, Surface Mount Microphone Condenser -26dB
  • RS Stock No. 218-2235
  • Mfr. Part No. ICS-43434
Each (In a Pack of 5)
£2.442
ROHM 4.7kΩ, 1210 (3225M) Thick Film Resistor ±5% 0.66W
  • RS Stock No. 263-7679
  • Mfr. Part No. ESR25JZPJ472
Each (On a Tape of 10)
£0.093
Broadcom 5V dc 500 PPR Pulse Optical Encoder with a 6 mm Hollow Shaft, Screw Mount, Pin
  • RS Stock No. 334-863
  • Mfr. Part No. HEDS-5600#A13
1 Bag of 1
£54.50
KYOCERA AVX 100nF Multilayer Ceramic Capacitor MLCC, 6.3V dc V, ±10% , SMD
  • RS Stock No. 124-3261
  • Mfr. Part No. 02016D104KAT2A
Each (On a Reel of 15000)
£0.003
KEMET 100μF Aluminium Electrolytic Capacitor 16V dc, Surface Mount - EDK107M016A9GAA
  • RS Stock No. 174-4392
  • Mfr. Part No. EDK107M016A9GAA
Each (On a Reel of 1000)
£0.079
IQD, 24MHz XO Oscillator, ±50ppm HCMOS, TTL, 4-Pin SMD LFSPXO019082
  • RS Stock No. 478-8849
  • Mfr. Part No. LFSPXO019082
Each
£1.50
5 (Dia.) x 35mm Fair-Rite Ferrite Core
  • RS Stock No. 467-4059
  • Mfr. Part No. 3078990891
Each (In a Pack of 10)
£0.529
EPCOS, Standard Metal Oxide Varistor 110pF 25A, Clamping 1650V, Varistor 1000V
  • RS Stock No. 138-9274
  • Mfr. Part No. B72210S0621K101
Each (In a Bag of 5)
£0.888
KEMET R82 Polyester Film Capacitor, 40 V ac, 63 V dc, ±5%, 220nF, Through Hole
  • RS Stock No. 312-1475
  • Mfr. Part No. R82DC3220DQ60J
Each (In a Pack of 10)
£0.132
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