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

155502 Products showing for Passive Components

949 of 999+
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
Arcol 39.2kΩ Metal Film Resistor 0.25W ±0.1% MRA020739K2BTA015
  • RS Stock No. 162-1060
  • Mfr. Part No. MRA020739K2BTA015
Each (In a Box of 500)
£0.349
Wurth, WE-HCF, 2818 Shielded Wire-wound SMD Inductor with a MnZn Core, 3.3 μH ±20% Shielded 47.5A Idc
  • RS Stock No. 185-7074
  • Mfr. Part No. 7443640330B
Each (In a Tray of 20)
£5.514
Vishay 470μF Aluminium Electrolytic Capacitor 35V dc - MAL214630471E3
  • RS Stock No. 280-3540
  • Mfr. Part No. MAL214630471E3
Each (In a Bag of 10)
£0.948
KEMET R60 Polyester Capacitor PET, 200 V ac, 400 V dc, ±10%, 10μF, Through Hole
  • RS Stock No. 164-9783
  • Mfr. Part No. R60MR51005040K
Each (In a Bag of 224)
£2.315
Murata 4.7μF Multilayer Ceramic Capacitor MLCC, 16V dc V, ±10% , SMD
  • RS Stock No. 276-3783P
  • Mfr. Part No. GRT188C71C475KE13D
Each (Supplied on a Reel)
£0.041
Bourns 91 100kΩ Rotary Potentiometer 1-Gang Panel Mount, 91R1A-R22-B20L
  • RS Stock No. 827-4993
  • Mfr. Part No. 91R1A-R22-B20L
Each
£6.82
Nichicon 10μF Aluminium Electrolytic Capacitor 350V dc, Radial, Through Hole - UBT2V100MPD8
  • RS Stock No. 762-1893
  • Mfr. Part No. UBT2V100MPD8
Each (In a Pack of 2)
£0.825
10kΩ, SMD Trimmer Potentiometer 0.25W Top Adjust Bourns, PVG3
  • RS Stock No. 181-4466
  • Mfr. Part No. PVG3A103C01R00
Each (On a Tape of 10)
£0.853
TE Connectivity, 1kΩ 100W Thick Film Chassis Mount Resistor BDS 2 A 100 1K0 10% ±10%
  • RS Stock No. 225-1288
  • Mfr. Part No. BDS 2 A 100 1K0 10%
Each
£66.82
TDK, SLF, 7045 Shielded Wire-wound SMD Inductor with a Ferrite Core, 100 μH ±20% Shielded 650mA Idc
  • RS Stock No. 916-4235
  • Mfr. Part No. SLF7045T-101MR50-PF
Each (In a Pack of 10)
£0.374
KEMET 10μF MnO2 Tantalum Capacitor 16V dc, T491 Series
  • RS Stock No. 648-0632
  • Mfr. Part No. T491B106M016AT
Each (In a Pack of 10)
£0.201
Sifam 15.5mm Black Potentiometer Knob for 6mm Shaft Splined, S151 006BK
  • RS Stock No. 111-0883
  • Mfr. Part No. S151 006BK
Each (In a Pack of 10)
£3.436
KOA RK73B 4.7kΩ, 0805 (2012M) Thick Film SMD Resistor ±5% 0.25W
  • RS Stock No. 432-416
  • Mfr. Part No. RK73B2ATTD472J
Each (In a Pack of 100)
£0.008
Panasonic ERJ8BW 100mΩ, 1206 (3216M) Thick Film SMD Resistor ±5% 1W
  • RS Stock No. 566-200
  • Mfr. Part No. ERJ8BWJR100V
Each (In a Pack of 5)
£0.304
Panasonic 2700μF Aluminium Electrolytic Capacitor 6.3V dc, Radial, Through Hole - EEUFC0J272
  • RS Stock No. 571-381
  • Mfr. Part No. EEUFC0J272
Each (In a Pack of 5)
£0.808
TE Connectivity, 270Ω 100W Chassis Mount Resistor HCL165J270RCX ±5%
  • RS Stock No. 254-3833
  • Mfr. Part No. HCL165J270RCX
Each (In a Box of 50)
£21.517
MCB PMA 4.7kΩ Conductive Plastic Potentiometer, UFPMA100A402XWB
  • RS Stock No. 818-6950
  • Mfr. Part No. UFPMA100A402XWB
Each
£118.65
Vishay MKT 372, MKT372 Polyester Film Capacitor, 63 V ac, 100 V dc, ±10%, 100nF, Through Hole
  • RS Stock No. 487-9787
  • Mfr. Part No. BFC237221104
Each (In a Pack of 25)
£0.316
Bourns, SRF2012A Unshielded SMD Common Mode Line Filter with a Ferrite Core, 25% 400mA Idc
  • RS Stock No. 223-1766
  • Mfr. Part No. SRF2012A-900YA
Each (On a Tape of 10)
£0.177
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