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

161274 Products showing for Passive Components

19 of 999+
In Stock
RS PRO 150 kΩ, 0805 Thick Film Resistor ±1 % 1.8 W - RSPHVR05FTEW1503
  • RS Stock No. 256-7727
Subtotal (1 tape of 25 units)
PHP165.575(exc. VAT)
PHP6.623/unit
In Stock
Yageo 2.2 kΩ Metal Film Metal Film Fixed Resistor 0.5 W 1 % MFR50SFTE52-2K2
  • RS Stock No. 199-7681
  • Mfr. Part No. MFR50SFTE52-2K2
Subtotal (1 tape of 100 units)
PHP170.60(exc. VAT)
PHP1.706/unit
In Stock
Roxburgh EMC, RES30 10 A 250V ac 60Hz, Chassis Mount RFI Filter, Fast-On 1 Phase
  • RS Stock No. 806-8164
  • Mfr. Part No. RES30F10
Subtotal (1 unit)
PHP2,928.15(exc. VAT)
PHP2,928.15/unit
In Stock
TDK 4700 μF Capacitor 50V dc, Snap-in
  • RS Stock No. 209-8657
  • Mfr. Part No. B41252C6478M060
Subtotal (1 pack of 2 units)
PHP502.51(exc. VAT)
PHP251.255/unit
Temporarily out of stock
TDK Ferrite Ring 21.3 mm, For: Emc Component, Automotive Electronics, General Electronics 28.5 mm ID 51.8 mm OD
  • RS Stock No. 170-1368
  • Mfr. Part No. B64290L0082X087
Subtotal (1 reel of 40 units)
PHP22,233.72(exc. VAT)
PHP555.843/unit
In Stock
Yageo 1.5 kΩ Metal Film Metal Film Fixed Resistor 0.25 W 1 % MFR-25FTE52-1K5
  • RS Stock No. 199-7606
  • Mfr. Part No. MFR-25FTE52-1K5
Subtotal (1 tape of 100 units)
PHP101.90(exc. VAT)
PHP1.019/unit
Currently unavailable
Vishay Power Factor Correction Capacitor 137 μF 25 kvar 30 kvar 3
  • RS Stock No. 187-5383
  • Mfr. Part No. PhMKP440.3.25,00-S84
Subtotal (1 unit)
PHP15,352.80(exc. VAT)
PHP15,352.80/unit
In Stock
TDK 100 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 740-7596
  • Mfr. Part No. C3216X7R2A104K160AA
Subtotal (1 pack of 50 units)
PHP269.80(exc. VAT)
PHP5.396/unit
In Stock
WIMA FKP2 Film Capacitor, ±5 %, 1 nF 100 V dc 63V ac, Through Hole
  • RS Stock No. 247-0265
  • Mfr. Part No. FKP02/1000/100/5
Subtotal (1 pack of 5 units)
PHP437.13(exc. VAT)
PHP87.426/unit
In Stock
Arcol Ohmite 20 Ω Wirewound Resistor 10 W 5 % 20J20RE
  • RS Stock No. 124-9302
  • Mfr. Part No. 20J20RE
Subtotal (1 bag of 5 units)
PHP1,195.67(exc. VAT)
PHP239.134/unit
In Stock
Yageo 220 Ω Metal Film Metal Film Fixed Resistor 0.25 W 1 % MFR-25FTE52-220R
  • RS Stock No. 199-7610
  • Mfr. Part No. MFR-25FTE52-220R
Subtotal (1 tape of 100 units)
PHP132.10(exc. VAT)
PHP1.321/unit
Limited stock
TDK 22 nF Multilayer Ceramic Capacitor, 630V dc, ±10 %, Surface
  • RS Stock No. 740-7635
  • Mfr. Part No. C3216X7R2J223K130AA
Subtotal (1 pack of 50 units)
PHP591.45(exc. VAT)
PHP11.829/unit
In Stock
Yageo 4.7 kΩ Metal Film Metal Film Fixed Resistor 0.25 W 1 % MFR-25FTE52-4K7
  • RS Stock No. 199-7625
  • Mfr. Part No. MFR-25FTE52-4K7
Subtotal (1 tape of 100 units)
PHP101.90(exc. VAT)
PHP1.019/unit
Being discontinued
Nichicon 10 μF Capacitor 50 V, 50V dc, Radial, Through Hole - UFG1H100MDM PC Pin
  • RS Stock No. 602-2501
  • Mfr. Part No. UFG1H100MDM
Subtotal (1 pack of 5 units)
PHP115.45(exc. VAT)
PHP23.09/unit
Currently unavailable
VPG Foil Resistors 1 kΩ Metal Foil Resistor 0.4 W 0.01 %
  • RS Stock No. 173-2963
  • Mfr. Part No. Y07061K00000T9L
Subtotal (1 bag of 25 units)
PHP29,120.20(exc. VAT)
PHP1,164.808/unit
Temporarily out of stock
Vishay 12 pF Multilayer Ceramic Capacitor, 50V dc, ±1 %, Surface
  • RS Stock No. 272-7833
  • Mfr. Part No. VJ0603A120FXACW1BC
Subtotal (1 reel of 4000 units)
PHP9,464.00(exc. VAT)
PHP2.366/unit
In Stock
Yageo RT 4.7 kΩ, 0603 Thin Film Surface Mount Resistor ±1 % 0.05 W - RT0603FRE074K7L
  • RS Stock No. 198-5550
  • Mfr. Part No. RT0603FRE074K7L
Subtotal (1 tape of 10 units)
PHP6.65(exc. VAT)
PHP0.665/unit
In Stock
Arcol Ohmite C300KR50E, 500 mΩ 300 W Wirewound Chassis Mount Resistor ±10 %
  • RS Stock No. 893-0895
  • Mfr. Part No. C300KR50E
Subtotal (1 unit)
PHP2,954.54(exc. VAT)
PHP2,954.54/unit
Temporarily out of stock
Vishay WSL 250 mΩ, 2512 Metal Strip Surface Mount Resistor ±1 % 1 W - WSL2512R2500FEA
  • RS Stock No. 683-6606
  • Mfr. Part No. WSL2512R2500FEA
Subtotal (1 pack of 5 units)
PHP131.18(exc. VAT)
PHP26.236/unit
In Stock
Panasonic ERJ 4700 Ω, 0603 Thick Film Surface Mount Fixed Resistor ±1 % Surface 0.1 W - ERJ3EKF4701V
  • RS Stock No. 277-772
  • Mfr. Part No. ERJ3EKF4701V
Subtotal (1 bag of 10 units)
PHP8.85(exc. VAT)
PHP0.885/unit
1
19
8064
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