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

167331 Products showing for Passive Components

Sort by
1918 of 999+
In Stock
Wurth Elektronik, WE-MK, 0402 Shielded Multilayer Surface Mount Inductor with a Ceramic Core, 3.3 nH Multilayer ±2 % 300
  • RS Stock No. 245-8409
  • Mfr. Part No. 7447840033G
Subtotal (10 units, on tapes of 10)
£0.45(exc. VAT)
£0.045/unit
Currently unavailable
TE Connectivity 1.8 Ω Metal Oxide Resistor 0.5 W 5 % ROX05SJ1R8
  • RS Stock No. 187-0287
  • Mfr. Part No. ROX05SJ1R8
Subtotal (5000 units, in boxes of 5000)
£130.00(exc. VAT)
£0.026/unit
Currently unavailable
Murata 40 MHz Crystal Unit ±30 ppm SMT 4-Pin 0.65 mm 1.6 mm 2mm
  • RS Stock No. 250-7795
  • Mfr. Part No. XRCGE40M000F3A1BR0
Subtotal (3000 units, on reels of 3000)
£336.00(exc. VAT)
£0.112/unit
In Stock
Wurth Elektronik, WE-PDF Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 24 μH ±20 % 4.5 A Idc
  • RS Stock No. 484-187
  • Mfr. Part No. 7447798241
Subtotal (1 unit)
£2.55(exc. VAT)
£2.55/unit
In Stock
Wurth Elektronik, WE-MAPI Shielded Power Inductor 0.47 μH ±30 %
  • RS Stock No. 486-616
  • Mfr. Part No. 744383430047
Subtotal (1 unit)
£0.99(exc. VAT)
£0.99/unit
Temporarily out of stock
KEMET PHE844 Film Capacitor X1, ±20 %, 1 μF 1 kV dc 440V ac, Through Hole
  • RS Stock No. 164-9916
  • Mfr. Part No. PHE844RR7100MR06L2
Subtotal (1 unit)
£5.67(exc. VAT)
£5.67/unit
Last RS stock
Vishay MCT 20 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - MCT06030D2002BP500
  • RS Stock No. 188-5916
  • Mfr. Part No. MCT06030D2002BP500
Subtotal (25 units, on tapes of 25)
£0.70(exc. VAT)
£0.028/unit
Currently unavailable
1 kΩ, Surface Trimmer Potentiometer, Pin 0.5 W Top Adjust Bourns, 3361
  • RS Stock No. 167-5096
  • Mfr. Part No. 3361P-1-102GLF
Subtotal (750 units, on reels of 750)
£341.25(exc. VAT)
£0.455/unit
In Stock
Murata Ferrite Bead 0.8 mm (Surface) (0603) (Chip Ferrite Bead), 140 Ω impedance at 100 MHz
  • RS Stock No. 318-2644
  • Mfr. Part No. BLM18BB141SN1D
Subtotal (25 units, in packs of 25)
£1.325(exc. VAT)
£0.053/unit
In Stock
Welwyn 68 Ω Wirewound Resistor 7 W 5 %
  • RS Stock No. 144-3008
  • Mfr. Part No. W22-68RJI
Subtotal (5 units, in bags of 5)
£7.60(exc. VAT)
£1.52/unit
Temporarily out of stock
KEMET C87 Film Capacitor, ±5 %, 8 μF 450V ac, Chassis Mount
  • RS Stock No. 173-1909
  • Mfr. Part No. C878BF34800SA0J
Subtotal (115 units, in bags of 115)
£530.15(exc. VAT)
£4.61/unit
In Stock
TDK, Standard Metal Oxide Varistor 9.95 nF 10 A, Clamping 43 V, Varistor 22 V
  • RS Stock No. 204-1902
  • Mfr. Part No. B72214S0140K101
Subtotal (5 units, in packs of 5)
£4.09(exc. VAT)
£0.818/unit
In Stock
Bourns CR0805 100 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - CR0805-FX-1003ELF
  • RS Stock No. 788-3997
  • Mfr. Part No. CR0805-FX-1003ELF
Subtotal (50 units, in packs of 50)
£0.60(exc. VAT)
£0.012/unit
In Stock
Panasonic ERA8V 68 kΩ, 1206 Thin Film Resistor 0.1 % 0.25 W - ERA8VEB6802V
  • RS Stock No. 259-7032
  • Mfr. Part No. ERA8VEB6802V
Subtotal (10 units, on tapes of 10)
£2.78(exc. VAT)
£0.278/unit
In Stock
Vishay 100 pF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 272-7873
  • Mfr. Part No. VJ0603Y101KXACW1BC
Subtotal (4000 units, on reels of 4000)
£36.00(exc. VAT)
£0.009/unit
Temporarily out of stock
KOA RN73R 150 kΩ, 0603 Thin Film Resistor ±0.1 % 0.1 W - RN73R1JTTD1503B25
  • RS Stock No. 223-4696
  • Mfr. Part No. RN73R1JTTD1503B25
Subtotal (5000 units, on reels of 5000)
£125.00(exc. VAT)
£0.025/unit
Temporarily out of stock
Murata Power Solutions 1 mH Radial Inductor, Max SRF:2.1 MHz, Q:120, 170 mA Idc, 3630 mΩ Rdc, 2200R
  • RS Stock No. 106-7756
  • Mfr. Part No. 22R105C
Subtotal (100 units, in bags of 100)
£44.90(exc. VAT)
£0.449/unit
In Stock
Taoglas AA.215.201111 Square GPS Antenna with SMA Connector, GPS
  • RS Stock No. 690-797
  • Mfr. Part No. AA.215.201111
Subtotal (1 unit)
£104.78(exc. VAT)
£104.78/unit
Currently unavailable
TDK 10 nF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 904-0088
  • Mfr. Part No. CGA3E2C0G1H103J080AA
Subtotal (50 units, in packs of 50)
£4.65(exc. VAT)
£0.093/unit
Currently unavailable
RS PRO 200 kΩ Metal Film Resistor 0.6 W 0.5
  • RS Stock No. 174-3002
Subtotal (100 units, in packs of 100)
£5.00(exc. VAT)
£0.05/unit
1
1918
8367
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