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

154521 Products showing for Passive Components

281 of 999+
RS PRO, 6.8kΩ 50W Aluminium Chassis Mount Resistor ±5%
  • RS Stock No. 175-4132
Each (In a Pack of 5)
£3.56(exc. VAT)
Vishay 470μF Aluminium Electrolytic Capacitor 40V dc, Through Hole - MAL212017471E3
  • RS Stock No. 280-6717
  • Mfr. Part No. MAL212017471E3
Each
£3.71(exc. VAT)
Vishay 3.3kΩ Metal Film Resistor 2W ±5% PR02000203301JA100
  • RS Stock No. 683-5742
  • Mfr. Part No. PR02000203301JA100
Each (In a Pack of 10)
£0.193(exc. VAT)
Vishay P16F 1kΩ Rotary Potentiometer 1-Gang Panel Mount, P16FNP102MACV1F
  • RS Stock No. 329-031
  • Mfr. Part No. P16FNP102MACV1F
Each
£16.19(exc. VAT)
Murata, LQM18DN_70, 0603 (1608M) Shielded Wire-wound SMD Inductor with a Ferrite Core Core, 10 μH ±20% Multilayer 300mA
  • RS Stock No. 276-3789P
  • Mfr. Part No. LQM18DN100M70L
Each (Supplied on a Reel)
£0.052(exc. VAT)
KYOCERA AVX 15μF Electrolytic Tantalum Capacitor 20V dc, TAJ Series
  • RS Stock No. 136-0147
  • Mfr. Part No. TAJB156K020RNJ
Each (In a Bag of 20)
£0.259(exc. VAT)
Yageo 1nF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±5% , SMD
  • RS Stock No. 378-710
  • Mfr. Part No. 0805CG102J9BB
Each (In a Pack of 25)
£0.028(exc. VAT)
TE Connectivity 3520 680Ω, 2512 (6432M) Thick Film SMD Resistor ±5% 1W
  • RS Stock No. 224-0389P
  • Mfr. Part No. 3520680RJT
Each (Supplied on a Reel)
£0.108(exc. VAT)
KOA 49.9Ω, 0402 (1005M) Thin Film Resistor ±0.1% 0.063W
  • RS Stock No. 223-4673P
  • Mfr. Part No. RN73R1ETTP50R0B25
Each (Supplied on a Reel)
£0.077(exc. VAT)
KEMET 10μF MnO2 Tantalum Capacitor 25V dc, T491 Series
  • RS Stock No. 538-2470
  • Mfr. Part No. T491C106K025AT
Each (In a Pack of 10)
£0.341(exc. VAT)
TE Connectivity CRG 18Ω, 0603 (1608M) Thick Film SMD Resistor ±1% 0.1W
  • RS Stock No. 134-7671
  • Mfr. Part No. CRG0603F18R
Each (On a Reel of 5000)
£0.001(exc. VAT)
Alps Alpine RK27 50kΩ Rotary Potentiometer, Panel Mount (Through Hole), RK27112MC01P
  • RS Stock No. 234-6617
  • Mfr. Part No. RK27112MC01P
Each
£49.41(exc. VAT)
Murata 100nF MLCC, 50V dc V, SMD
  • RS Stock No. 247-7743
  • Mfr. Part No. GCJ188R91H104KA01D
Each (On a Tape of 20)
£0.092(exc. VAT)
Bourns 680 μH ±10% Ferrite DR Radial Inductor, Max SRF:1.6MHz, Q:20, 400mA Idc, 1.6Ω Rdc, RLB
  • RS Stock No. 172-8361
  • Mfr. Part No. RLB0914-681KL
Each (In a Bag of 200)
£0.187(exc. VAT)
Panasonic 100μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - ECA1EHG101
  • RS Stock No. 108-4080
  • Mfr. Part No. ECA1EHG101
Each (In a Bag of 200)
£0.087(exc. VAT)
Murata, LQW18A_00, 0603 Wire-wound SMD Inductor 10 nH ±5% Wire-Wound 650mA Idc Q:35
  • RS Stock No. 724-2908
  • Mfr. Part No. LQW18AN10NJ00D
Each (In a Pack of 10)
£0.062(exc. VAT)
Yageo 68mΩ, 0805 (2012M) Thick Film SMD Resistor ±1% 0.25W
  • RS Stock No. 199-6012
  • Mfr. Part No. PT0805FR-7W0R068L
Each (On a Tape of 25)
£0.10(exc. VAT)
TE Connectivity 6.8kΩ Carbon Film Resistor 0.5W ±5% CFR50J6K8
  • RS Stock No. 132-696P
  • Mfr. Part No. CFR50J6K8
Each (Supplied as a Tape)
£0.079(exc. VAT)
Panasonic 330μF Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole - ECA1VM331
  • RS Stock No. 107-8037
  • Mfr. Part No. ECA1VM331
Each (In a Bag of 200)
£0.146(exc. VAT)
EPCOS B32642B Polypropylene Film Capacitor, 630V dc, 5%, 68nF, Through Hole
  • RS Stock No. 194-3662
  • Mfr. Part No. B32642B6683J000
Each (In a Pack of 10)
£0.666(exc. VAT)
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