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

169823 Products showing for Passive Components

Sort by
2165 of 999+
In Stock
Panasonic 330 μF Aluminium Polymer Capacitor 25V, Surface
  • RS Stock No. 434-007
  • Mfr. Part No. EEHZV1E331V
Subtotal (5 units, in packs of 5)
£16.60(exc. VAT)
£3.32/unit
In Stock
Wurth Elektronik 22 μH Manganese Zinc Ferrite Leaded Inductor, Max SRF:9 MHz, 40.6 A Idc, 3.2 mΩ Rdc, WE-HCFT
  • RS Stock No. 185-7084
  • Mfr. Part No. 7443763540220
Subtotal (6 units, in trays of 6)
£72.288(exc. VAT)
£12.048/unit
Being discontinued
Nichicon 47 μF Capacitor 50V dc, Surface Solder - UUA1H470MNL1GS
  • RS Stock No. 739-3378
  • Mfr. Part No. UUA1H470MNL1GS
Subtotal (5 units, in packs of 5)
£3.25(exc. VAT)
£0.65/unit
In Stock
Bourns, SDR0302, 0302 Unshielded Wirewound Surface Mount Inductor with a Ferrite DR Core, 10 μH ±20 % 900 mA Idc Q:18
  • RS Stock No. 727-1571P
  • Mfr. Part No. SDR0302-100ML
Subtotal (5 units, supplied on a continuous strip)
£1.32(exc. VAT)
£0.264/unit
In Stock
Wurth Elektronik 130 μH Composite Iron Powder Toroidal Inductor, 2.9 A Idc, 90 mΩ Rdc, WE-FI
  • RS Stock No. 308-8817
  • Mfr. Part No. 74470292
Subtotal (1 unit)
£1.84(exc. VAT)
£1.84/unit
Temporarily out of stock
Wurth Elektronik 2.2 pF Multilayer Ceramic Capacitor, 50V dc, Surface
  • RS Stock No. 242-1044
  • Mfr. Part No. 885012006047
Subtotal (4000 units, on reels of 4000)
£52.00(exc. VAT)
£0.013/unit
In Stock
Wurth Elektronik, WE-XHMI SMT, 5030 Shielded Surface Mount Inductor with a Polystyrene Core, 680 nH Shielded ±20 % 17.7
  • RS Stock No. 219-812
  • Mfr. Part No. 744393340068
Subtotal (10 units, on tapes of 10)
£11.70(exc. VAT)
£1.17/unit
In Stock
PUI Audio 100 dB Through Hole Continuous Internal 23.8 mm Piezo Buzzer Component 23.8 mm 3 V dc Min 20V dc Max
  • RS Stock No. 276-729
  • Mfr. Part No. AI-2429-TWT-R
Subtotal (1 unit)
£3.05(exc. VAT)
£3.05/unit
In Stock
Vishay 5 kΩ Rotary Potentiometer 10-Turns 1-Gang Panel, 534B1502JC
  • RS Stock No. 607-341
  • Mfr. Part No. 534B1502JC
Subtotal (1 unit)
£34.73(exc. VAT)
£34.73/unit
Currently unavailable
Vitrohm 330 Ω Wirewound Through Hole Fixed Resistor 3 W 1 %
  • RS Stock No. 212-3584
  • Mfr. Part No. CRP300FT-73-330RAA
Subtotal (1000 units, in boxes of 1000)
£275.00(exc. VAT)
£0.275/unit
Temporarily out of stock
Yageo RL 100 mΩ, 1218 Thick Film Surface Mount Resistor ±1 % 1 W - RL1218FK-070R1L
  • RS Stock No. 199-6110
  • Mfr. Part No. RL1218FK-070R1L
Subtotal (4000 units, on reels of 4000)
£576.00(exc. VAT)
£0.144/unit
In Stock
Bourns, AVHT Varistor 10 nF 10 A, Clamping 40 V, Varistor 24 V, 2220
  • RS Stock No. 211-1064
  • Mfr. Part No. AV14K2220122NIR1HT
Subtotal (5 units, on tapes of 5)
£5.17(exc. VAT)
£1.034/unit
Temporarily out of stock
TDK B32652 Film Capacitor 33 nF 250V ac 1 kV dc, Through Hole 2
  • RS Stock No. 190-8494
  • Mfr. Part No. B32652A0333K000
Subtotal (1 unit)
£0.61(exc. VAT)
£0.61/unit
In Stock
TDK 27 mH Ferrite Power Line Choke, Max SRF:10 kHz, 1 A Idc, 750 mΩ Rdc 250V ac, B82721A
  • RS Stock No. 167-0188
  • Mfr. Part No. B82723J2102N001
Subtotal (320 units, in boxes of 320)
£694.40(exc. VAT)
£2.17/unit
In Stock
TDK B32912 Film Capacitor 100 nF 530V ac 530 V dc, Through Hole 2
  • RS Stock No. 194-3415
  • Mfr. Part No. B32912A5104M000
Subtotal (5 units, in packs of 5)
£7.55(exc. VAT)
£1.51/unit
In Stock
TDK 100 nF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 179-5466
  • Mfr. Part No. CGA5L2NP01H104J160AA
Subtotal (25 units, in packs of 25)
£6.25(exc. VAT)
£0.25/unit
In Stock
OKW 18.8 mm Knob Diameter Black Potentiometer Knob for 6 mm Shaft Round Shaft, A1311860
  • RS Stock No. 283-2019
  • Mfr. Part No. A1311860
Subtotal (1 unit)
£3.94(exc. VAT)
£3.94/unit
Currently unavailable
ROHM ESR03 9.1 Ω, 0603 Thick Film Surface Mount Resistor ±5 % 0.25 W - ESR03EZPJ9R1
  • RS Stock No. 262-9991
  • Mfr. Part No. ESR03EZPJ9R1
Subtotal (100 units, on tapes of 100)
£1.90(exc. VAT)
£0.019/unit
Temporarily out of stock
100 Ω STMicroelectronics Surface Chip Balun
  • RS Stock No. 192-4673
  • Mfr. Part No. BAL-UWB-01E3
Subtotal (5000 units, on reels of 5000)
£1,175.00(exc. VAT)
£0.235/unit
In Stock
Panasonic ERJPC6 866000 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±0.1 to 0.5 % Surface 0.25 W -
  • RS Stock No. 789-101P
  • Mfr. Part No. ERJPC6D8663V
Subtotal (10 units, supplied on a continuous strip)
£0.50(exc. VAT)
£0.05/unit
1
2165
8492
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