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

154991 Products showing for Passive Components

121 of 999+
RS PRO 2200μF Aluminium Electrolytic Capacitor 63V dc, Axial, Through Hole
  • RS Stock No. 707-6688
Each
£5.07
KEMET PHE844 Metallised Polypropylene Film Capacitor, 440 V ac, 1000 V dc, ±20%, 220nF, Through Hole
  • RS Stock No. 164-9963
  • Mfr. Part No. PHE844RD6220MR30L2
Each (In a Pack of 5)
£1.604
Sifam 21.5mm Black Potentiometer Knob Cap, C211-BLK
  • RS Stock No. 225-984
  • Mfr. Part No. C211-BLK
Each (In a Pack of 10)
£0.517
Allen Bradley, 100-FS Surge Suppressor Unit 250 V ac Maximum Voltage Rating Surge Suppressor
  • RS Stock No. 261-2809
  • Mfr. Part No. 100-FSD250
Each
£17.25
Wurth Elektronik Ferrite Bead EMI Suppression Axial Ferrite Bead, 11.5 x 5 x 18.5mm
  • RS Stock No. 332-429
  • Mfr. Part No. 74270030
Each (In a Tray of 104)
£0.392
EPCOS Thermistor, 2Ω Resistance, NTC Type, 31 x 7mm
  • RS Stock No. 121-8216
  • Mfr. Part No. B57127P0209M301
Each (In a Bag of 5)
£1.11
LPRS ANT-433MR Whip Antenna with SMA Connector, ISM Band
  • RS Stock No. 532-4424
  • Mfr. Part No. ANT-433MR
Each
£6.40
Vishay MMB0207 470Ω, Melf 0207 Thin Film SMD Resistor ±1% 0.4W
  • RS Stock No. 678-8065P
  • Mfr. Part No. MMB02070C4700FB200
Each (Supplied on a Reel)
£0.106
KEMET C27 Metallised Polypropylene Film Capacitor, 470V ac, ±5%, 30μF, Chassis Mount
  • RS Stock No. 377-8964
  • Mfr. Part No. C274AC35300SA0J
Each
£12.01
KEMET 4700μF Aluminium Electrolytic Capacitor 63V dc, Screw Terminal - ALS40A472DB063
  • RS Stock No. 381-9891
  • Mfr. Part No. ALS40A472DB063
Each
£10.66
KEMET R82 Polyester Film Capacitor, 63 V ac, 100 V dc, ±5%, 10nF, Through Hole
  • RS Stock No. 312-1431
  • Mfr. Part No. R82EC2100DQ50J
Each (In a Pack of 10)
£0.118
Nichicon 3300μF Aluminium Electrolytic Capacitor 63V dc, Snap-In - LLS1J332MELA
  • RS Stock No. 846-7117
  • Mfr. Part No. LLS1J332MELA
Each (In a Pack of 2)
£2.975
WIMA FKP2 Polypropylene Film Capacitor, 63 V ac, 100 V dc, ±5%, 2.2nF, Through Hole
  • RS Stock No. 115-714
  • Mfr. Part No. FKP2/2200/100/5
Each (In a Pack of 10)
£0.776
Wurth Elektronik 47μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - 860240473003
  • RS Stock No. 839-6211
  • Mfr. Part No. 860240473003
Each (In a Bag of 25)
£0.149
Wurth Elektronik, 18.432MHz SPXO Crystal Oscillator, ±50ppm HCMOS SMT 831020392
  • RS Stock No. 276-6792
  • Mfr. Part No. 831020392
Each (In a Pack of 5)
£2.53
KEMET C4G Metallised Polypropylene Film Capacitor, 600V dc, ±5%, 10μF, Through Hole
  • RS Stock No. 384-7896
  • Mfr. Part No. C4GAHUD5100AA3J
Each
£6.91
RS PRO, 8Ω 100W Wire Wound Chassis Mount Resistor ±5%
  • RS Stock No. 185-2445
Each
£11.68
RS PRO 500Ω Rotary Potentiometer 10-Turns 1-Gang Bushing Mount
  • RS Stock No. 278-0307
Each
£12.30
Vishay MBB0207 Series Axial Thin Film Fixed Resistor 100kΩ ±1% 0.6W ±50ppm/°C
  • RS Stock No. 477-8505
  • Mfr. Part No. MBB02070C1003FCT00
Each (In a Pack of 50)
£0.059
Wurth, MAPI, 3020HT Shielded Wire-wound SMD Inductor with a Polystyrene Core, 3.3 μH ±30% 3.1A Idc
  • RS Stock No. 219-752
  • Mfr. Part No. 74438336033HT
Each (On a Tape of 5)
£1.156
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