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

154534 Products showing for Passive Components

2126 of 999+
RS PRO 56Ω, 0402 (1005M) Thin Film Resistor 0.1% 0.06W
  • RS Stock No. 243-0426
Each (On a Reel of 10000)
£0.018
KEMET R76 Polypropylene Capacitor PP, 2kV dc, ±5%, 2.2nF
  • RS Stock No. 135-3518
  • Mfr. Part No. R76UI12204030J
Each (In a Pack of 10)
£0.462
Panasonic 470μF Aluminium Electrolytic Aluminium Electrolytic Capacitor 25V dc, Surface Mount - EEEFK1E471P
  • RS Stock No. 537-0528P
  • Mfr. Part No. EEEFK1E471P
Each (Supplied on a Reel)
£0.682
EPCOS, B84143A*R107 50A 520 V ac 50 → 60Hz, Panel Mount EMC Filter, Screw 3 Phase
  • RS Stock No. 146-3440
  • Mfr. Part No. B84143A0050R107
Each
£117.31
Schneider Electric, SAH 400 V 18A Sine Wave Filter
  • RS Stock No. 340-905
  • Mfr. Part No. LVR05125A40T
Each
£641.64
Wurth Elektronik 2 x 1 mH 800 mA Common mode filter 2 x 0.31Ω 80V
  • RS Stock No. 144-9810
  • Mfr. Part No. 744222
Each (On a Reel of 1000)
£1.507
SMD Trimmer Potentiometer 0.15W Top Adjust Bourns
  • RS Stock No. 246-3325
  • Mfr. Part No. TC33X-2-202E
Each (On a Tape of 10)
£0.178
Vishay 220pF MLCC, 1kV dc V, 5% , SMD
  • RS Stock No. 298-258P
  • Mfr. Part No. VJ1812A221JXGTW1HV
Each (Supplied on a Reel)
£0.172
Ecliptek, 16MHz XO Oscillator, 25ppm CMOS SMD EC2625ETTS-16.000M TR
  • RS Stock No. 219-2030
  • Mfr. Part No. EC2625ETTS-16.000M TR
Each (On a Reel of 1000)
£0.944
Vishay 120μF Aluminium Electrolytic Capacitor 40V dc, Axial, Through Hole - MAL212637121E3
  • RS Stock No. 205-0267
  • Mfr. Part No. MAL212637121E3
Each (In a Pack of 2)
£2.22
RS PRO Omni-Directional, Through Hole 6mm Microphone Condenser -38dB
  • RS Stock No. 771-7011P
Each (Supplied in a Bag)
£1.696
Wurth Elektronik 3W800 Flat Cable Ferrite Core, Ferrite Core, Inner dims. 31.6 x 1mm
  • RS Stock No. 332-298
  • Mfr. Part No. 7427222
Each (In a Tray of 81)
£1.91
KEMET R46 Metallised Polypropylene Film Capacitor, 275V ac, ±20%, 1μF, Through Hole
  • RS Stock No. 165-0185
  • Mfr. Part No. R46KN410040P0M
Each (In a Pack of 5)
£1.03
Vishay 51kΩ Metal Film Resistor 1W ±5% PR01000105102JA100
  • RS Stock No. 683-5530
  • Mfr. Part No. PR01000105102JA100
Each (In a Pack of 10)
£0.259
Phoenix Contact, VAL-SPP Surge Arrester 1200 V dc Maximum Voltage Rating 40kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 493-501
  • Mfr. Part No. 1466773
Each
£222.99
Arcol, 4.7Ω 50W Wire Wound Chassis Mount Resistor HS50 4R7 J ±5%
  • RS Stock No. 158-323P
  • Mfr. Part No. HS50 4R7 J
Each (Supplied in a Bag)
£4.81
TE Connectivity 47kΩ Metal Film Resistor 0.6W ±1% LR1F47K
  • RS Stock No. 148-893P
  • Mfr. Part No. LR1F47K
Each (Supplied as a Tape)
£0.05
Wurth Elektronik 220μF Aluminium Electrolytic Capacitor 6.3V dc, Surface Mount - 865230145005
  • RS Stock No. 838-7885
  • Mfr. Part No. 865230145005
Each (In a Pack of 10)
£0.281
Wurth, WE-RFI, 0805 (2012M) Shielded Wire-wound SMD Inductor with a Ferrite Core, 820 nH ±5% Wire-Wound 300mA Idc Q:35
  • RS Stock No. 800-7725
  • Mfr. Part No. 744760282A
Each (In a Pack of 5)
£0.392
Vishay 43kΩ Thin Film Resistor 0.4W ±1% MBA02040C4302FC100
  • RS Stock No. 151-533
  • Mfr. Part No. MBA02040C4302FC100
Each (In a Pack of 100)
£0.194
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