Over 800,000 products available

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

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 its 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 device 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, such as windings from a transformer and inductors. It is useful because it offers low electrical conductivity along with high magnetic permeability.

  • Surge Protection Components

Surge protectors are a part of nearly every home and office today. They provide your expensive electronic devices with added protection against surges of electricity, which would ultimately destroy them.

Antennas
Capacitors
Crystals, Oscillators & Resonators
EMI Filters & Protection
Fixed Resistors
Inductors
Passive Components Kits
Rotary Encoders
Sounder, Buzzer & Microphone Components
Surge Protection Components
Variable Resistors

169431 Products showing for Passive Components

Sort by
In Stock
500 kΩ, Through Hole Trimmer Potentiometer, Solder Pin 0.5 W Top Adjust Bourns, PV36
  • RS Stock No. 769-2198P
  • Mfr. Part No. PV36W504C01B00
Subtotal 1 unit (supplied in a bag)
£1.15(exc. VAT)
£1.15/unit
Temporarily out of stock
TE Connectivity 820 Ω Wirewound Resistor 3 W 5 % ER74820RJT
  • RS Stock No. 163-9311
  • Mfr. Part No. ER74820RJT
Subtotal (1 box of 1000 units)
£616.00(exc. VAT)
£0.616/unit
In Stock
20 kΩ, Through Hole Trimmer Potentiometer, Solder Pin 0.5 W Top Adjust Bourns, PV36
  • RS Stock No. 769-2170P
  • Mfr. Part No. PV36W203C01B00
Subtotal 1 unit (supplied in a box)
£1.15(exc. VAT)
£1.15/unit
In Stock
TDK, B82422A*100, 1210 Wirewound Surface Mount Inductor with a Ferrite Core, 47 μH ±10 % 85 mA Idc Q:27
  • RS Stock No. 191-0172P
  • Mfr. Part No. B82422A1473K100
Subtotal 5 units (supplied on a continuous strip)
£1.23(exc. VAT)
£0.246/unit
Temporarily out of stock
Panasonic 33 μF Capacitor 200V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 921-3185
  • Mfr. Part No. EEUEE2D330
Subtotal (1 bag of 200 units)
£67.20(exc. VAT)
£0.336/unit
In Stock
100 Ω, Through Hole Trimmer Potentiometer, Solder Pin 0.5 W Top Adjust Bourns, PV36
  • RS Stock No. 769-2154P
  • Mfr. Part No. PV36W101C01B00
Subtotal 1 unit (supplied in a bag)
£1.15(exc. VAT)
£1.15/unit
In Stock
Wurth Elektronik Ferrite Ring Nanocrystalline 8 mm, For: Aerospace 12.5 mm ID 20 mm OD
  • RS Stock No. 905-783P
  • Mfr. Part No. 742708104
Subtotal 5 units (supplied in a tray)
£7.61(exc. VAT)
£1.522/unit
In Stock
10 kΩ, Through Hole Trimmer Potentiometer, Pin 0.2 W Side Adjust Bourns, 3306
  • RS Stock No. 748-1333P
  • Mfr. Part No. 3306W-1-103
Subtotal 10 units (supplied in a bag)
£2.71(exc. VAT)
£0.271/unit
In Stock
1 mΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Top Adjust Bourns, 3299
  • RS Stock No. 743-2353P
  • Mfr. Part No. 3299W-1-105LF
Subtotal 1 unit (supplied in a tube)
£1.89(exc. VAT)
£1.89/unit
In Stock
KEMET C4AF Film Capacitor, 10 %, 4.7 μF 350 V dc 350V ac, Through Hole
  • RS Stock No. 258-4221
  • Mfr. Part No. C4AF7BU4470F12K
Subtotal (1 box of 64 units)
£112.00(exc. VAT)
£1.75/unit
In Stock
1 kΩ, Surface Trimmer Potentiometer, Pin 0.25 W Top Adjust Bourns, 3224
  • RS Stock No. 743-2303P
  • Mfr. Part No. 3224X-1-102E
Subtotal 1 unit (supplied on a continuous strip)
£2.95(exc. VAT)
£2.95/unit
In Stock
TE Connectivity 22 kΩ Wirewound Resistor 14 W 5 % C1422KJL
  • RS Stock No. 164-0318
  • Mfr. Part No. C1422KJL
Subtotal (1 box of 100 units)
£216.00(exc. VAT)
£2.16/unit
In Stock
100 Ω, Through Hole Trimmer Potentiometer, Pin 1 W Side Adjust Bourns, 3059
  • RS Stock No. 743-2280P
  • Mfr. Part No. 3059Y-1-101LF
Subtotal 1 unit (supplied in a tube)
£6.91(exc. VAT)
£6.91/unit
In Stock
10 kΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Top Adjust Bourns, 3339
  • RS Stock No. 691-7632P
  • Mfr. Part No. 3339P-1-103LF
Subtotal 1 unit (supplied in a tube)
£3.62(exc. VAT)
£3.62/unit
Limited stock
TDK, SLF, 10165 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 10 μH ±20 to ±30 % 4.1 A Idc
  • RS Stock No. 181-5309P
  • Mfr. Part No. SLF10165T-100M3R83PF
Subtotal 20 units (supplied on a continuous strip)
£13.78(exc. VAT)
£0.689/unit
In Stock
2 kΩ, Surface Trimmer Potentiometer, J-Hook 0.25 W Top Adjust Bourns, 3314
  • RS Stock No. 691-7406P
  • Mfr. Part No. 3314J-1-202E
Subtotal 5 units (supplied on a continuous strip)
£5.70(exc. VAT)
£1.14/unit
In Stock
5 kΩ, Surface Trimmer Potentiometer, Gull Wing 0.25 W Top Adjust Bourns, 3269
  • RS Stock No. 691-2586P
  • Mfr. Part No. 3269W-1-502GLF
Subtotal 1 unit (supplied on a continuous strip)
£3.17(exc. VAT)
£3.17/unit
In Stock
Nichicon 68 μF Capacitor 400V dc, Snap-in
  • RS Stock No. 752-9511P
  • Mfr. Part No. LGJ2G680MELZ20
Subtotal 1 unit (supplied in a bag)
£2.43(exc. VAT)
£2.43/unit
In Stock
2 kΩ, Surface Trimmer Potentiometer, Gull Wing 0.25 W Top Adjust Bourns, 3269
  • RS Stock No. 691-2577P
  • Mfr. Part No. 3269W-1-202LF
Subtotal 1 unit (supplied on a continuous strip)
£3.46(exc. VAT)
£3.46/unit
Currently unavailable
TE Connectivity 107 Ω Metal Film Resistor 0.25 W 0.1 YR1B107RCC
  • RS Stock No. 164-4439
  • Mfr. Part No. YR1B107RCC
Subtotal (1 box of 1000 units)
£196.00(exc. VAT)
£0.196/unit
Results per page

Guides & Articles

LED Resistor Value Calculator
A calculator designed to help you understand what resistance value you require from your LED resistor, in order to ensure safety for your LED lighting.
Learn more
Resistors Guide
What are the different types of resistors? Learn more in our comprehensive guide.
Read more
Potentiometers Guide
Our potentiometers guide will help you understand their uses, how they work, the various types and characteristics.
Read more
A Guide to Voltage Controlled Oscillators
This guide covers voltage controlled oscillators, explaining what they are, the different types available, and examples of how they fit into a circuit.
Explore VCOs

Related links