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 include 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 passive component that can gather and hold a charge in a way that is similar to how a battery functions. This type of passive component is made of 2 close conductors (usually plates) that are separated by a dielectric material. The plates accumulate electric charge when connected to a power source. One plate accumulates a positive charge and the other plate accumulates a 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

Another type of passive component is the resistor. 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, it's 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 component 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; some examples would include windings from a transformer and inductors. It is useful because of its low electrical conductivity and high magnetic permeability.

Surge Protection Components

Surge protectors are a part of nearly every home and office today. They provide your expensive electronic equipment and circuitry with added protection against the harmful effects of electricity surges, improving their longevity.

RS is a supplier of passive components with a wide variety of quality products from leading manufacturers across the world.

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

143959 Products showing for Passive Components

3 / 999+
RS PRO 95dB Panel Mount Buzzer, 130V ac Min, 240V ac Max
  • RS Stock No. 226-2982
Each
MYR21.24
RS PRO 3A 250 V ac 50/60Hz, Chassis Mount EMI Filter, Fast-On, Single Phase
  • RS Stock No. 276-6287
Each
MYR152.10
RS PRO 15A 250 V ac 50/60Hz, Chassis Mount EMI Filter, Fast-On, Single Phase
  • RS Stock No. 273-4899
Each
MYR154.42
RS PRO 250Ω Metal Film Resistor 0.6W ±0.5%
  • RS Stock No. 174-2647
Each (In a Box of 5000)
MYR0.119
Kingstate 8Ω 0.08W Miniature Speaker 19.9mm Dia. , 19.9 (Dia.) x 4mm
  • RS Stock No. 771-6985
  • Mfr. Part No. KDSG20008
Each (In a Bag of 5)
MYR6.772
RS PRO 100dB Through Hole Buzzer External Piezo Buzzer, 45 (Dia.) x 13.7mm, 12V ac Max
  • RS Stock No. 179-7447
Each
MYR27.31
Wurth Elektronik 100μF Surface Mount Polymer Capacitor, 35V dc
  • RS Stock No. 257-5746
  • Mfr. Part No. 875115655003
Each (On a Reel of 400)
MYR10.393
EPCOS, B84243A 25A 530 V ac 50Hz, Chassis Mount EMC Filter, Terminal Block 3 Phase
  • RS Stock No. 887-6492
  • Mfr. Part No. B84243A8025W000
Each
MYR1,066.18
KEMET 4.7μF Multilayer Ceramic Capacitor MLCC, 10V dc V, ±10% , SMD
  • RS Stock No. 691-1155
  • Mfr. Part No. C0603C475K8PACTU
Each (In a Pack of 25)
MYR0.346
RS PRO 87dB Panel Mount Slow Pulse Internal Piezo Buzzer, 28 x 25.4mm, 4V dc Min, 28V dc Max
  • RS Stock No. 771-6904
Each
MYR14.38
EPCOS B32912 Polypropylene Film Capacitor, 530V dc, 20%, 100nF, Through Hole
  • RS Stock No. 194-3414
  • Mfr. Part No. B32912A5104M000
Each (In a Box of 300)
MYR5.076
Panasonic 4.7μF Aluminium Electrolytic Capacitor 450V dc, Radial, Through Hole - ECA2WM4R7
  • RS Stock No. 228-7287
  • Mfr. Part No. ECA2WM4R7
Each (In a Pack of 5)
MYR2.814
RS PRO 2200μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole
  • RS Stock No. 711-1160
Each (In a Pack of 10)
MYR2.791
RS PRO 80dB Panel Mount Fast Pulse Internal Piezo Buzzer, 42.5 (Dia.) x 33mm, 6V dc Min, 28V dc Max
  • RS Stock No. 535-8360
Each
MYR31.25
RS PRO 96dB Panel Mount Continuous Internal Piezo Buzzer, 41.8 x 16mm, 1.5V dc Min, 20V dc Max
  • RS Stock No. 617-3097
Each
MYR11.06
Schaffner, FN355 10A 440/250 V ac 400Hz, Chassis Mount EMI Filter, Fast-On 3 Phase
  • RS Stock No. 170-4950
  • Mfr. Part No. FN355-10-05
Each (In a Box of 80)
MYR252.586
Capacitor/2.2 ÁF/1812
  • RS Stock No. 486-539P
  • Mfr. Part No. 885012210032
Each (Supplied on a Reel)
MYR45.73
RS PRO 100μF Aluminium Electrolytic Capacitor 35V dc, Surface Mount
  • RS Stock No. 276-6116
Each (In a Pack of 25)
MYR1.917
Vishay 100Ω Thick Film Resistor 50W ±5% RTO050F100R0JTE1
  • RS Stock No. 789-1036P
  • Mfr. Part No. RTO050F100R0JTE1
Each (Supplied in a Tube)
MYR40.47
RS PRO 470μF Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole
  • RS Stock No. 711-1295P
Each (Supplied in a Bag)
MYR1.722
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