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

163559 Products showing for Passive Components

Sort By
856 of 999+
In Stock
Wurth Elektronik, Through Hole Aluminium Capacitor Kit 34
  • RS Stock No. 212-0525
  • Mfr. Part No. 860041
Subtotal (1 unit)
SGD254.96(exc. GST)
SGD254.96/unit
Temporarily out of stock
KEMET 10 μF MnO2 Tantalum Capacitor 16V dc, Surface, T491 Series
  • RS Stock No. 801-5454
  • Mfr. Part No. T491A106M016AT
Subtotal (1 pack of 50 units)
SGD15.90(exc. GST)
SGD0.318/unit
In Stock
Bourns, SRP1038WA, 1038 Shielded Power Inductor with a Metal Alloy Powder Core, 2.2 μH ±20 % 18 A Idc Q:20
  • RS Stock No. 247-6038
  • Mfr. Part No. SRP1038WA-2R2M
Subtotal (1 unit)
SGD2.14(exc. GST)
SGD2.14/unit
In Stock
Wurth Elektronik 2.2 μF Capacitor 350V dc, Through Hole Radial Lead
  • RS Stock No. 839-5031
  • Mfr. Part No. 860131274002
Subtotal (1 bag of 10 units)
SGD6.07(exc. GST)
SGD0.607/unit
In Stock
Vishay CRCW 47 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % Surface 0.25 W - CRCW060347K0FKEAHP
  • RS Stock No. 820-6855
  • Mfr. Part No. CRCW060347K0FKEAHP
Subtotal (1 bag of 25 units)
SGD1.65(exc. GST)
SGD0.066/unit
In Stock
Yageo RC 39 Ω, 0603 Thick Film Surface Mount Fixed Resistor ±1 % 0.1 W - RC0603FR-0739RL
  • RS Stock No. 242-4119
  • Mfr. Part No. RC0603FR-0739RL
Subtotal (1 tape of 100 units)
SGD1.00(exc. GST)
SGD0.01/unit
In Stock
Vishay 1 μF Capacitor 100V, SMD Surface Mount - MAL214297101E3
  • RS Stock No. 697-455
  • Mfr. Part No. MAL214297101E3
Subtotal (1 tape of 1 unit)
SGD0.65(exc. GST)
SGD0.65/tape
In Stock
Yageo RT 499 Ω, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - RT0603BRD07499RL
  • RS Stock No. 199-1554
  • Mfr. Part No. RT0603BRD07499RL
Subtotal (1 tape of 10 units)
SGD1.29(exc. GST)
SGD0.129/unit
In Stock
Wurth Elektronik, 744, 1260 Shielded Surface Mount Inductor with a Ferrite Core, 1 μH Surface Mount ±20 % 20 A Idc
  • RS Stock No. 758-403
  • Mfr. Part No. 744771010
Subtotal (1 tape of 5 units)
SGD15.62(exc. GST)
SGD3.124/unit
In Stock
Epson, 156.25MHz Crystal Oscillator Crystal Oscillator LVPECL, 6-Pin Surface Mount X1G006141000211
  • RS Stock No. 842-368
  • Mfr. Part No. X1G006141000211
Subtotal (1 unit)
SGD133.61(exc. GST)
SGD133.61/unit
In Stock
Wurth Elektronik, WE-XHMI, 6060 Power Inductor with a Iron Core, 1 μH Flat Wire Winding 32.3 A Idc
  • RS Stock No. 697-716
  • Mfr. Part No. 744393465010
Subtotal (1 tape of 5 units)
SGD14.30(exc. GST)
SGD2.86/unit
In Stock
Littelfuse, CG 108 V dc 4 kA, Axial 2 Electrode Arrester Gas Discharge Tube
  • RS Stock No. 760-6740
  • Mfr. Part No. CG90LTR
Subtotal (1 pack of 5 units)
SGD18.09(exc. GST)
SGD3.618/unit
In Stock
Vishay 10 mΩ Metal Glaze Resistor 1 W 5 % VR68000001005JAC00
  • RS Stock No. 683-5326
  • Mfr. Part No. VR68000001005JAC00
Subtotal (1 pack of 10 units)
SGD12.20(exc. GST)
SGD1.22/unit
In Stock
TDK 220 μF Capacitor 400V dc, Snap-in
  • RS Stock No. 171-3264
  • Mfr. Part No. B43545B9227M060
Subtotal (1 unit)
SGD11.23(exc. GST)
SGD11.23/unit
In Stock
Bourns, SRR1260, 1260 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 220 μH ±10 % 1.38 A Idc Q:22
  • RS Stock No. 693-4615
  • Mfr. Part No. SRR1260-221K
Subtotal (1 unit)
SGD1.44(exc. GST)
SGD1.44/unit
In Stock
Yageo 1 μF Multilayer Ceramic Capacitor, 16V dc, ±10 %, Surface
  • RS Stock No. 198-8192
  • Mfr. Part No. CS0603KRX7R7BB105
Subtotal (1 tape of 100 units)
SGD8.50(exc. GST)
SGD0.085/unit
In Stock
Panasonic 1000 μF Capacitor 100V dc, Radial, Through Hole - ECA2AM102 Radial Lead
  • RS Stock No. 240-3768
  • Mfr. Part No. ECA2AM102
Subtotal (1 unit)
SGD5.00(exc. GST)
SGD5.00/unit
In Stock
Vishay Trimmer Panel Mount Adapter 0.875 in, For Use With 43 Series
  • RS Stock No. 855-305
  • Mfr. Part No. ACCTRIADB30610
Subtotal (1 unit)
SGD30.88(exc. GST)
SGD30.88/unit
In Stock
TDK 10 nF Multilayer Ceramic Capacitor, 630V dc, ±10 %, Surface
  • RS Stock No. 740-7629
  • Mfr. Part No. C3216X7R2J103K115AA
Subtotal (1 pack of 50 units)
SGD7.50(exc. GST)
SGD0.15/unit
In Stock
Abracon 14.7456 MHz Crystal Unit ±50 ppm Surface Mount 4-Pin 1.1 mm 5 mm 3.2mm
  • RS Stock No. 241-2992
  • Mfr. Part No. ABM3B-14.7456MHZ-10-1-U-T
Subtotal (1 reel of 1000 units)
SGD720.00(exc. GST)
SGD0.72/unit
1
856
8178
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