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

155496 Products showing for Passive Components

948 of 999+
EPCOS B32914 Polypropylene Film Capacitor, 330V ac, ±20%, 1μF, Through Hole
  • RS Stock No. 669-0101
  • Mfr. Part No. B32914A3105M189
Each (In a Pack of 5)
£2.81
Inductor/SMD 4838 33 µH 0.9A ±20%
  • RS Stock No. 636-381
  • Mfr. Part No. 74408943330
Each (On a Tape of 5)
£1.66
TE Connectivity CPF 46.4Ω, 0603 (1608M) Thin Film SMD Resistor ±0.1% 0.063W
  • RS Stock No. 123-9357
  • Mfr. Part No. CPF0603B46R4E1
Each (On a Reel of 1000)
£0.102
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
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
Vishay 10μF Tantalum Capacitor 63V dc, 293D Series
  • RS Stock No. 179-7510
  • Mfr. Part No. 293D106X0063E2TE3
Each (In a Pack of 2)
£5.605
Bourns 47 μH ±10% Ferrite Leaded Inductor, Max SRF:6.5MHz, Q:30, 1.4A Idc, 160mΩ Rdc, RLB0913
  • RS Stock No. 135-0010
  • Mfr. Part No. RLB0913-470K
Each (In a Tray of 600)
£0.259
Arcol, 75Ω 10W Wire Wound Chassis Mount Resistor HS10 75R J ±5%
  • RS Stock No. 166-4136
  • Mfr. Part No. HS10 75R J
Each (In a Bag of 100)
£2.272
1kΩ, SMD Trimmer Potentiometer 0.1W Top Adjust Bourns, 3312
  • RS Stock No. 691-6914
  • Mfr. Part No. 3312J-1-102E
Each
£2.66
Broadcom 5.5V dc Optical Encoder with a 6 mm Round Shaft, Screw Mount, Connector
  • RS Stock No. 566-039
  • Mfr. Part No. AR49-M49M-P12V
Each
£61.92
Phoenix Contact, PT 1X2-24DC/FM-ST Surge Protection Plug 20 V ac Maximum Voltage Rating Surge Protector
  • RS Stock No. 241-6119
  • Mfr. Part No. 2920078
Each (In a Pack of 10)
£153.482
Panasonic 150μF Aluminium Electrolytic Capacitor 200V dc, Radial, Through Hole - EEUED2D151
  • RS Stock No. 920-6743
  • Mfr. Part No. EEUED2D151
Each (In a Bag of 50)
£0.957
EPCOS 0.1F Aluminium Electrolytic Capacitor 16V dc, Screw Terminal - B41456B4100M600
  • RS Stock No. 171-1127
  • Mfr. Part No. B41456B4100M600
Each (In a Box of 36)
£14.975
Fair-Rite Ferrite Core
  • RS Stock No. 219-2662
  • Mfr. Part No. 0443164151
Each
£3.77
Fair-Rite Ferrite Sleeve, For Suppression Components
  • RS Stock No. 467-3551
  • Mfr. Part No. 2843000302
Each (In a Pack of 10)
£0.415
SMD Trimmer Potentiometer 0.125W Bourns, 3313
  • RS Stock No. 445-922
  • Mfr. Part No. 3313J-1-501E
Each (In a Bag of 2)
£0.835
TE Connectivity 22kΩ, 2512 (6432M) Thick Film SMD Resistor 5% 3W
  • RS Stock No. 471-978
  • Mfr. Part No. 5-2176230-4
Each (On a Reel of 2000)
£0.209
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