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

163652 Products showing for Passive Components

Sort By
973 / 999+
Temporarily out of stock
Vishay 187 Ω Thin Film Resistor 0.6 W 1 % MRS25000C1870FCT00
  • RS Stock No. 683-3128
  • Mfr. Part No. MRS25000C1870FCT00
Subtotal (1 pack of 25 units)
MYR10.275
MYR0.411/unit
In Stock
Vishay 2200 pF Multilayer Ceramic Capacitor, 3kV, 10 %, Surface Mount
  • RS Stock No. 732-930
  • Mfr. Part No. HV1812Y222KXHATHV
Subtotal (1 tape of 1 unit)
MYR7.82
MYR7.82/tape
In Stock
Wurth Elektronik, WE-MK, 0402 Shielded Multilayer Surface Mount Inductor with a Ceramic Core, 270 nH Multilayer ±0.05 %
  • RS Stock No. 883-0389
  • Mfr. Part No. 744784227A
Subtotal (1 bag of 25 units)
MYR20.725
MYR0.829/unit
Temporarily out of stock
Panasonic 470 μF Capacitor 63V dc, Surface Solder - EEEFK1J471AM 0125
  • RS Stock No. 708-3989
  • Mfr. Part No. EEEFK1J471AM
Subtotal (1 unit)
MYR11.35
MYR11.35/unit
Temporarily out of stock
Bourns, 2056 600 V dc 5 kA, Radial 3 Electrode Gas Discharge Tube Gas Discharge Tube
  • RS Stock No. 172-7235
  • Mfr. Part No. 2056-60-B2LF
Subtotal (1 tray of 1000 units)
MYR3,709.00
MYR3.709/unit
Temporarily out of stock
Wurth Elektronik 470 μF Capacitor 6.3V dc, Surface Solder
  • RS Stock No. 839-5185
  • Mfr. Part No. 865250157009
Subtotal (1 pack of 5 units)
MYR29.10
MYR5.82/unit
Currently unavailable
Vishay 4.7 μF Capacitor 100V, SMD Surface Mount - MAL214297001E3
  • RS Stock No. 697-453
  • Mfr. Part No. MAL214297001E3
Subtotal (1 tape of 1 unit)
MYR2.19
MYR2.19/tape
In Stock
Panasonic 220 μF Capacitor 50V, Radial, Through Hole - EEUFC1H221S
  • RS Stock No. 571-199
  • Mfr. Part No. EEUFC1H221S
Subtotal (1 pack of 5 units)
MYR28.50
MYR5.70/unit
In Stock
Vishay 30.1 kΩ Thin Film Resistor 0.6 W 1 % MRS25000C3012FCT00
  • RS Stock No. 683-3519
  • Mfr. Part No. MRS25000C3012FCT00
Subtotal (1 pack of 25 units)
MYR11.575
MYR0.463/unit
In Stock
Wurth Elektronik, 744, 1040 Shielded Inductor with a Iron Powder Core, 3.3 μH Surface Mount ±20% 10.9 mA Idc
  • RS Stock No. 758-384P
  • Mfr. Part No. 74437368039
Subtotal 5 units (supplied on a continuous strip)
MYR65.26
MYR13.052/unit
In Stock
Wurth Elektronik, 744, SMD Shielded Inductor with a Polystyrene Core, 4.7 μH Surface Mount ±20% 2.1 A Idc
  • RS Stock No. 758-442
  • Mfr. Part No. 74479320165247
Subtotal (1 tape of 25 units)
MYR31.375
MYR1.255/unit
Last RS stock
Vishay, IHLP-4040DZ-01, 4040 Shielded Surface Mount Inductor with a Metal Composite Core, 6.8 μH ±20 % 8 A Idc
  • RS Stock No. 748-7209
  • Mfr. Part No. IHLP4040DZER6R8M01
Subtotal (1 bag of 5 units)
MYR26.95
MYR5.39/unit
In Stock
Vishay CRCW0201 3.3 kΩ, 0201 Thick Film Thick Film Resistor ±1 % Surface 0.05 W - CRCW02013K30FNEDAT
  • RS Stock No. 726-168
  • Mfr. Part No. CRCW02013K30FNEDAT
Subtotal (1 tape of 100 units)
MYR4.00
MYR0.04/unit
In Stock
TDK, ACM, 2012 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 400 mA Idc
  • RS Stock No. 831-9245
  • Mfr. Part No. ACM2012-900-2P-T002
Subtotal (1 bag of 5 units)
MYR7.00
MYR1.40/unit
In Stock
Panasonic ERJ 680 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - ERJU06F6803V
  • RS Stock No. 865-4541
  • Mfr. Part No. ERJU06F6803V
Subtotal (1 bag of 100 units)
MYR18.60
MYR0.186/unit
Temporarily out of stock
Arcol Ohmite 56 Ω Non-Inductive Film Resistor 20 W 5 % AP821 56R J 100PPM
  • RS Stock No. 810-1473
  • Mfr. Part No. AP821 56R J 100PPM
Subtotal (1 unit)
MYR29.45
MYR29.45/unit
In Stock
Vishay 220 μF Aluminium Electrolytic Capacitor 550V, Through Hole - MAL225960221E3
  • RS Stock No. 859-352
  • Mfr. Part No. MAL225960221E3
Subtotal (1 unit)
MYR91.37
MYR91.37/unit
Currently unavailable
Wurth Elektronik, WE-GFH, 3225 Unshielded Wirewound Surface Mount Inductor with a Iron Core, 4.7 μH Moulded ±20 % 800 mA
  • RS Stock No. 899-7182
  • Mfr. Part No. 744764904
Subtotal (1 bag of 10 units)
MYR16.90
MYR1.69/unit
Currently unavailable
ROHM ESR10 680 Ω, 0805 Thick Film Resistor ±5 % 0.4 W - ESR10EZPJ681
  • RS Stock No. 262-9628P
  • Mfr. Part No. ESR10EZPJ681
Subtotal 100 units (supplied on a continuous strip)
MYR12.40
MYR0.124/unit
Temporarily out of stock
Vishay 22 kΩ Thin Film Resistor 0.6 W 1 % MBB02070C2202FCT00
  • RS Stock No. 166-7786
  • Mfr. Part No. MBB02070C2202FCT00
Subtotal (1 box of 5000 units)
MYR1,135.00
MYR0.227/unit
1
973
8183
Results per page

Guides & Articles

Capacitors Guide
In our comprehensive Capacitors Guide we look at MLCC's and the alternatives available
Read more
Variable Resistors Guide
Everything you need to know about variable resistors
Read more

Related links