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
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

169604 Products showing for Passive Components

Sort by
801 of 999+
Temporarily out of stock
Panasonic 10 μF Electrolytic Capacitor 25V, Radial - ECEA1EN100UI Surface Mount
  • RS Stock No. 783-201
  • Mfr. Part No. ECEA1EN100UI
Subtotal (1 tape of 5 units)
£0.79(exc. VAT)
£0.158/unit
In Stock
Vishay 5.1 kΩ Metal Film Metal Film Resistor 2 W 5 %
  • RS Stock No. 251-3925P
  • Mfr. Part No. PR02000205101JR500
Subtotal 5 units (supplied on a continuous strip)
£1.50(exc. VAT)
£0.30/unit
Temporarily out of stock
Littelfuse, ZA Varistor Metal Oxide Varistor 320 pF 10 A, Clamping 1240 V, Varistor 198 V, Radial Leaded Ceramic Disc
  • RS Stock No. 170-9912
  • Mfr. Part No. V180ZA1P
Subtotal (1 bag of 1500 units)
£181.50(exc. VAT)
£0.121/unit
Being discontinued
Nichicon 22 μF Surface Polymer Capacitor, 50V dc
  • RS Stock No. 187-2302P
  • Mfr. Part No. GYB1H220MCQ1GS
Subtotal 10 units (supplied on a continuous strip)
£3.76(exc. VAT)
£0.376/unit
In Stock
RS PRO 330 μH Power Inductor, 3 A Idc, 0.142 Ω Rdc
  • RS Stock No. 104-8442
Subtotal (1 pack of 5 units)
£15.85(exc. VAT)
£3.17/unit
In Stock
Arcol Ohmite PCS 0.02 Ω, 2512 Metal Film Surface Mount Fixed Resistor 0.5 % 2 W - PCS2512DR0200ET
  • RS Stock No. 263-4338
  • Mfr. Part No. PCS2512DR0200ET
Subtotal (1 tape of 5 units)
£6.04(exc. VAT)
£1.208/unit
In Stock
Vishay Absolute Mechanical Rotary Encoder with a 60 mm (Not Indexed), Screw
  • RS Stock No. 444-534
  • Mfr. Part No. RAIK060I11318FB693
Subtotal (1 unit)
£152.97(exc. VAT)
£152.97/unit
Temporarily out of stock
KYOCERA AVX 10 μF Electrolytic Tantalum Capacitor 10V dc, Surface, TLJ Series
  • RS Stock No. 144-1529
  • Mfr. Part No. TLJR106M010R3000
Subtotal (1 reel of 2500 units)
£1,410.00(exc. VAT)
£0.564/unit
In Stock
RS PRO 20 A 520V ac 50Hz, 60 Hz, Chassis Mount Power Line Filter, Terminal Block 3 Phase
  • RS Stock No. 237-8741
Subtotal (1 unit)
£61.80(exc. VAT)
£61.80/unit
In Stock
Wurth Elektronik 309101099 Gasket of Polyurethane Foam With Adhesive Tape 1 m x 10mm x 10 mm
  • RS Stock No. 748-217
  • Mfr. Part No. 309101099
Subtotal (1 unit)
£8.92(exc. VAT)
£8.92/unit
In Stock
Murata 330 pF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 815-1651P
  • Mfr. Part No. GCM1555C1H331JA16D
Subtotal 250 units (supplied on a reel)
£4.00(exc. VAT)
£0.016/unit
Last RS stock
TE Connectivity 22 kΩ Carbon Film Resistor 0.25 W 5 %
  • RS Stock No. 135-954P
  • Mfr. Part No. CFR16J22K
Subtotal 10 units (supplied as a tape)
£0.75(exc. VAT)
£0.075/unit
In Stock
Vishay CRCW 3.3 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W
  • RS Stock No. 679-1351P
  • Mfr. Part No. CRCW08053K30FKEA
Subtotal 50 units (supplied in a bag)
£0.95(exc. VAT)
£0.019/unit
In Stock
Yageo 180 Ω Carbon Film Carbon Film Fixed Resistor 0.25 W 5 % CFR-25JT-52-180R
  • RS Stock No. 199-1843
  • Mfr. Part No. CFR-25JT-52-180R
Subtotal (1 tape of 200 units)
£3.00(exc. VAT)
£0.015/unit
Temporarily out of stock
Yageo 470 pF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 198-8249
  • Mfr. Part No. CS0805KRX7R0BB471
Subtotal (1 reel of 4000 units)
£120.00(exc. VAT)
£0.03/unit
Temporarily out of stock
TDK Openable, Diameter 7 mm Ferrite Sleeve, Apertures: 1 16.5 mm 17.4 mm 30 mm, For USB
  • RS Stock No. 109-4164
  • Mfr. Part No. ZCAT1730-0730A
Subtotal (1 reel of 840 units)
£614.88(exc. VAT)
£0.732/unit
Currently unavailable
TE Connectivity CPF 60.4 Ω, 0603 Thin Film ±0.1 % 0.06 W - CPF0603B60R4E1
  • RS Stock No. 123-5331
  • Mfr. Part No. CPF0603B60R4E1
Subtotal (1 reel of 1000 units)
£106.00(exc. VAT)
£0.106/unit
In Stock
Wurth Elektronik, WE-HEPC, 6030 Shielded Power Inductor with a Polystyrene Core, 22 μH Shielded 20 % 1 A Idc
  • RS Stock No. 270-0853P
  • Mfr. Part No. 74408063220
Subtotal 1 unit (supplied on a continuous strip)
£1.12(exc. VAT)
£1.12/unit
In Stock
RS PRO 10 A 250V ac 50Hz, 60 Hz, Chassis Mount Power Line Filter, Fast-On 1 Phase
  • RS Stock No. 286-7278
Subtotal (1 unit)
£22.90(exc. VAT)
£22.90/unit
Temporarily out of stock
TDK, B84144A*R000 25 A 440V ac 50Hz, 60 Hz, Flange EMC Filter, Tab 3 Phase
  • RS Stock No. 167-8381
  • Mfr. Part No. B84144A0025R000
Subtotal (1 box of 2 units)
£507.85(exc. VAT)
£253.925/unit
1
801
8481
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