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

165235 Products showing for Passive Components

Sort By
7 of 999+
In Stock
Siemens 6GT23981CB00 Square RFID Antenna
  • RS Stock No. 265-8808
  • Mfr. Part No. 6GT23981CB00
Subtotal (1 unit)
TWD33,850.00(exc. GST)
TWD33,850.00/unit
Temporarily out of stock
TDK Ferrite Ring 7.3 mm, For: Emc Component, General Electronics, Automotive Electronics 8.5 mm ID 17.2 mm OD
  • RS Stock No. 170-1367
  • Mfr. Part No. B64290L0045X087
Subtotal (2000 units, on reels of 2000)
TWD28,400.00(exc. GST)
TWD14.20/unit
In Stock
RS PRO 13 mm Knob Diameter Grey Potentiometer Knob for 6.4 mm Shaft D Shaped
  • RS Stock No. 467-6718
Subtotal (10 units, in packs of 10)
TWD241.00(exc. GST)
TWD24.10/unit
In Stock
Fair-Rite Ferrite Core 4 mm 30 mm
  • RS Stock No. 467-3977
  • Mfr. Part No. 3061990881
Subtotal (10 units, in packs of 10)
TWD262.00(exc. GST)
TWD26.20/unit
In Stock
Sifam 21.5 mm Knob Diameter Black Potentiometer Knob Cap for 6 mm Shaft Axial, C211-BLK
  • RS Stock No. 225-984
  • Mfr. Part No. C211-BLK
Subtotal (10 units, in packs of 10)
TWD229.00(exc. GST)
TWD22.90/unit
In Stock
Sifam 16 mm Knob Diameter Black Potentiometer Knob for 6 mm Shaft Splined, 3/03/TPN110-006/237/233
  • RS Stock No. 299-5017
  • Mfr. Part No. 3/03/TPN110-006/237/233
Subtotal (5 units, in packs of 5)
TWD129.00(exc. GST)
TWD25.80/unit
In Stock
RS PRO 15 mm Knob Diameter Silver Potentiometer Knob for 6.4 mm Shaft Circular
  • RS Stock No. 465-9836
Subtotal (1 unit)
TWD160.00(exc. GST)
TWD160.00/unit
Currently unavailable
Vishay 22 mm Knob Diameter Black Potentiometer Knob for 13.5 mm Shaft Circular, PA16FNP474MA
  • RS Stock No. 277-453
  • Mfr. Part No. PA16FNP474MA
Subtotal (20 units, in boxes of 20)
TWD8,982.00(exc. GST)
TWD449.10/unit
Temporarily out of stock
Fair-Rite Ferrite Ring Toroid Core 3.3 mm 4.75 mm ID 9.5 mm OD
  • RS Stock No. 467-4239
  • Mfr. Part No. 5961000201
Subtotal (25 units, in packs of 25)
TWD317.50(exc. GST)
TWD12.70/unit
In Stock
TDK Ferrite Ring Toroid Core 7.3 mm, For: Emc Component, General Electronics, Automotive Electronics 8.5 mm ID 17.2 mm
  • RS Stock No. 170-1365
  • Mfr. Part No. B64290L0045X038
Subtotal (2000 units, in boxes of 2000)
TWD51,800.00(exc. GST)
TWD25.90/unit
Currently unavailable
Fair-Rite Ferrite Core 2 mm 15 mm
  • RS Stock No. 172-9967
  • Mfr. Part No. 3078990851
Subtotal (600 units, in boxes of 600)
TWD2,220.00(exc. GST)
TWD3.70/unit
In Stock
RS PRO Potentiometer Knob 25 mm 6.4 mm, Black
  • RS Stock No. 107-866
Subtotal (1 unit)
TWD164.00(exc. GST)
TWD164.00/unit
Temporarily out of stock
TDK Ferrite Ring Toroid Core 14.8 mm, For: General Electronics, Automotive Electronics, Emc Component 52.4 mm ID 89.3 mm
  • RS Stock No. 170-1378
  • Mfr. Part No. B64290L0730X087
Subtotal (12 units, on reels of 12)
TWD9,813.60(exc. GST)
TWD817.80/unit
In Stock
TDK Ferrite Ring Toroid Core 13.6 mm, For: General Electronics 19.2 mm ID 35.5 mm OD
  • RS Stock No. 167-8277
  • Mfr. Part No. B64290L0048X830
Subtotal (100 units, in boxes of 100)
TWD8,450.00(exc. GST)
TWD84.50/unit
In Stock
Vishay 14.7 mm Knob Diameter Black Potentiometer Knob for 6.35 mm Shaft Round Shaft, ACCKPR1417NLS14
  • RS Stock No. 425-007
  • Mfr. Part No. ACCKPR1417NLS14
Subtotal (1 unit)
TWD88.00(exc. GST)
TWD88.00/unit
In Stock
Sifam 21.5 mm Knob Diameter Black Potentiometer Knob for 6 mm Shaft Circular, S211 006BK
  • RS Stock No. 111-0956
  • Mfr. Part No. S211 006BK
Subtotal (10 units, in packs of 10)
TWD1,760.00(exc. GST)
TWD176.00/unit
In Stock
Sifam 11.5 mm Knob Diameter Black Potentiometer Knob for 6 mm Shaft D Shaped, 3/03/DR110-006/237/232
  • RS Stock No. 299-4935
  • Mfr. Part No. 3/03/DR110-006/237/232
Subtotal (5 units, in packs of 5)
TWD129.00(exc. GST)
TWD25.80/unit
Temporarily out of stock
Fair-Rite Ferrite Ring Round Cable Core 50.8 mm, For: EMI Suppression 25.4 mm ID 50.8 mm OD
  • RS Stock No. 467-2801
  • Mfr. Part No. 2643626002
Subtotal (1 unit)
TWD1,024.00(exc. GST)
TWD1,024.00/unit
In Stock
Fair-Rite Ferrite Core Round Cable Core 28.6 mm, For: Suppression Components 9.5 mm ID 17.45 mm OD
  • RS Stock No. 467-5074
  • Mfr. Part No. 2643665702
Subtotal (5 units, in packs of 5)
TWD262.00(exc. GST)
TWD52.40/unit
In Stock
Vishay 23.8 mm Knob Diameter Black Potentiometer Knob for 6.35 mm Shaft Round Shaft, ACCKMP2416NLS14
  • RS Stock No. 425-036
  • Mfr. Part No. ACCKMP2416NLS14
Subtotal (1 unit)
TWD275.00(exc. GST)
TWD275.00/unit
1
7
8262
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