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

154518 Products showing for Passive Components

495 of 999+
TE Connectivity 2.2kΩ Metal Oxide Resistor 2W ±5% ROX2SJ2K2
  • RS Stock No. 214-1995
  • Mfr. Part No. ROX2SJ2K2
Each (In a Pack of 10)
£0.178(exc. VAT)
Vishay 1kΩ Thin Film Resistor 0.6W ±1% MRS25000C1001FCT00
  • RS Stock No. 683-3165P
  • Mfr. Part No. MRS25000C1001FCT00
Each (Supplied on a Reel)
£0.088(exc. VAT)
Bourns, 4600X 15kΩ ±2% Isolated Resistor Array, 4 Resistors, 1W total, SIP, Pin
  • RS Stock No. 167-0088
  • Mfr. Part No. 4608X-102-153LF
Each (In a Bag of 200)
£0.081(exc. VAT)
Abracon 12.288MHz Crystal ±50ppm SMD 2-Pin 6.0 x 3.5 x 1.4mm
  • RS Stock No. 240-3449
  • Mfr. Part No. ABM7-12.288MHZ-D2Y-T
Each (In a Pack of 10)
£0.241(exc. VAT)
Arcol, 4,7Ω 50W Wire Wound Chassis Mount Resistor HS50E3 4R7 F M145 ±1%
  • RS Stock No. 195-4129
  • Mfr. Part No. HS50E3 4R7 F M145
Each
£14.12(exc. VAT)
Panasonic ERA 12kΩ, 0805 (2012M) Thin Film SMD Resistor ±0.1% 0.125W
  • RS Stock No. 566-507P
  • Mfr. Part No. ERA6AEB123V
Each (Supplied on a Reel)
£0.116(exc. VAT)
KEMET 10000μF Aluminium Electrolytic Capacitor 500V dc, Screw Terminal - ALS70A103NT500
  • RS Stock No. 144-3437
  • Mfr. Part No. ALS70A103NT500
Each
£103.34(exc. VAT)
Vishay MBB0207 Series Axial Thin Film Fixed Resistor 24.9Ω ±1% 0.6W ±50ppm/°C
  • RS Stock No. 506-4655P
  • Mfr. Part No. MBB02070C2499FCT00
Each (Supplied as a Tape)
£0.059(exc. VAT)
TE Connectivity, 12Ω 100W Chassis Mount Resistor HCL165J12RCX ±5%
  • RS Stock No. 254-3811
  • Mfr. Part No. HCL165J12RCX
Each (In a Box of 50)
£31.968(exc. VAT)
ROHM MCR 2.2kΩ, 0603 (1608M) Thick Film SMD Resistor ±1% 0.1W
  • RS Stock No. 901-3572P
  • Mfr. Part No. MCR03EZPFX2201
Each (Supplied on a Reel)
£0.007(exc. VAT)
RS PRO 1GΩ Thick Film Resistor 1.5W 5%
  • RS Stock No. 175-4058
Each (In a Pack of 5)
£3.326(exc. VAT)
Allen Bradley, 1321 2A Line Reactor
  • RS Stock No. 262-2047
  • Mfr. Part No. 1321-3R2-B
Each
£233.84(exc. VAT)
EPCOS Thermistor, 6.8kΩ Resistance, NTC Type
  • RS Stock No. 191-2178
  • Mfr. Part No. B57045K0682K000
Each
£1.25(exc. VAT)
Bourns 3310 100kΩ Rotary Potentiometer 1-Gang, 3310C-001-104L
  • RS Stock No. 167-3507
  • Mfr. Part No. 3310C-001-104L
Each (In a Tube of 50)
£1.969(exc. VAT)
KEMET 680 μH 10% Coil Inductor, 430mA Idc
  • RS Stock No. 265-2448
  • Mfr. Part No. SBC4-681-431
Each (In a Box of 4000)
£0.387(exc. VAT)
Vishay, 2.2kΩ 50W Thick Film Chassis Mount Resistor RCH50S22000JS06 ±5%
  • RS Stock No. 168-0153
  • Mfr. Part No. RCH50S22000JS06
Each (In a Bag of 25)
£12.72(exc. VAT)
Linx ANT-W63-FPC-UFL-100 WiFi Antenna with UFL Connector
  • RS Stock No. 216-9817
  • Mfr. Part No. ANT-W63-FPC-UFL-100
Each (In a Bag of 10)
£3.53(exc. VAT)
Abracon 32.768kHz Crystal ±20ppm Cylindrical Can, Radial 2.1 x 6.2mm
  • RS Stock No. 171-0198
  • Mfr. Part No. AB26T-32.768KHZ
Each (In a Bag of 1000)
£0.132(exc. VAT)
Yageo 10nF MLCC, 100V dc V, ±10% , SMD
  • RS Stock No. 198-8350
  • Mfr. Part No. CS1206KKX7RCBB103
Each (On a Tape of 25)
£0.114(exc. VAT)
KEMET C87 Metallised Polypropylene Film Capacitor, 470V ac, ±5%, 20μF, Chassis Mount
  • RS Stock No. 173-5096
  • Mfr. Part No. C878BF35200SA0J
Each (In a Bag of 50)
£9.412(exc. VAT)
Results per page
1
495
7726

Guides & Articles

Article image
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
Article image
Resistors Guide
What are the different types of resistors? Learn more in our comprehensive guide.
Read more
Article image
Potentiometers Guide
Our potentiometers guide will help you understand their uses, how they work, the various types and characteristics.
Read more
Article image
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