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

168483 Products showing for Passive Components

Sort by
2473 of 999+
Temporarily out of stock
TE Connectivity, Corcom K 20 A 250V ac 50Hz, 60 Hz, Flange RFI Filter, Fast-On 1 Phase
  • RS Stock No. 186-3737
  • Mfr. Part No. 20VK1
Subtotal (1 unit)
£54.97(exc. VAT)
£54.97/unit
In Stock
Panasonic EZPV Film Capacitor, ±10 %, 4 μF 1.1 kV dc, Through Hole
  • RS Stock No. 204-8554
  • Mfr. Part No. EZPV1B405LTB
Subtotal (1 unit)
£4.57(exc. VAT)
£4.57/unit
In Stock
Bourns 6539 1 kΩ Rotary Potentiometer 1-Turns 1-Gang Servo Mount, 6539S-1-102
  • RS Stock No. 167-4718
  • Mfr. Part No. 6539S-1-102
Subtotal (1 tray of 25 units)
£652.80(exc. VAT)
£26.112/unit
In Stock
Panasonic ERJ8BQ 1 Ω, 1206 Thick Film Surface Mount Resistor ±1 % 0.5 W - ERJ8BQF1R0V
  • RS Stock No. 721-5956
  • Mfr. Part No. ERJ8BQF1R0V
Subtotal (1 pack of 5 units)
£0.83(exc. VAT)
£0.166/unit
In Stock
Murata Single Layer Ceramic Capacitor 1.5 nF ±20 % E(JIS) Dielectric, DE2, Through Hole 125 °C Max Op. Temp.
  • RS Stock No. 172-7013
  • Mfr. Part No. DE2E3SA152MA3BY02F
Subtotal (1 box of 250 units)
£30.25(exc. VAT)
£0.121/unit
Currently unavailable
Murata 47 pF Multilayer Ceramic Capacitor, 50V dc, ±2 %, Surface
  • RS Stock No. 185-3258
  • Mfr. Part No. GJM1555C1H470GB01D
Subtotal (1 reel of 500 units)
£4.50(exc. VAT)
£0.009/unit
In Stock
KEMET 20 μF Multilayer Ceramic Capacitor, 50V dc, 10 %, Surface
  • RS Stock No. 224-6969P
  • Mfr. Part No. C2220X206K5RLCAUTO
Subtotal 1 unit (supplied on a continuous strip)
£4.67(exc. VAT)
£4.67/unit
In Stock
Bourns 3549 1 kΩ Rotary Potentiometer 10-Turns 1-Gang Panel Mount
  • RS Stock No. 692-8496P
  • Mfr. Part No. 3549H-1AA-102A
Subtotal 1 unit (supplied in a bag)
£36.57(exc. VAT)
£36.57/unit
In Stock
Murata 4.7 μF Multilayer Ceramic Capacitor, 10V dc, ±20 %, Surface
  • RS Stock No. 846-4702P
  • Mfr. Part No. ZRB15XR61A475ME01D
Subtotal 25 units (supplied on a continuous strip)
£2.325(exc. VAT)
£0.093/unit
In Stock
Vishay 100 μF Capacitor 63V dc, Through Hole - MAL215058101E3 Radial
  • RS Stock No. 280-0262
  • Mfr. Part No. MAL215058101E3
Subtotal (1 bag of 10 units)
£9.56(exc. VAT)
£0.956/unit
Last RS stock
Vishay ISOA100R11101JT, 1.1 kΩ 100 W Thick Film Chassis Mount Resistor ±5 %
  • RS Stock No. 261-0210
  • Mfr. Part No. ISOA100R11101JT
Subtotal (1 unit)
£8.92(exc. VAT)
£8.92/unit
In Stock
Vishay MCT 10 kΩ, 0603 Thin Film Surface Mount Resistor ±1 % Surface 0.12 W - MCT06030C1002FP500
  • RS Stock No. 188-5910
  • Mfr. Part No. MCT06030C1002FP500
Subtotal (1 tape of 100 units)
£1.90(exc. VAT)
£0.019/unit
Currently unavailable
RS PRO 47 Ω, 0201 Thick Film Surface Mount Resistor 1 % 0.05 W
  • RS Stock No. 183-9526
Subtotal (1 reel of 15000 units)
£30.00(exc. VAT)
£0.002/unit
Stocked by manufacturer
Phoenix Contact, DATATRAB Surge Protection Device 60V dc Maximum Voltage Rating 12 kA Maximum Surge Current Rj45 Surge
  • RS Stock No. 496-878
  • Mfr. Part No. 1464188
Subtotal (1 unit)
£124.13(exc. VAT)
£124.13/unit
Temporarily out of stock
Wurth Elektronik, WE-HCI, 2212 Shielded Wirewound Surface Mount Inductor with a Manganese Zinc Ferrite Core, 68 μH Flat
  • RS Stock No. 163-4606
  • Mfr. Part No. 74435586800
Subtotal (1 reel of 120 units)
£494.88(exc. VAT)
£4.124/unit
In Stock
AVX 35 F Supercapacitor, SCC 3V dc, Through Hole
  • RS Stock No. 250-6963
  • Mfr. Part No. SCCU30E356SRB
Subtotal (1 bag of 200 units)
£558.20(exc. VAT)
£2.791/unit
In Stock
TE Connectivity SM 100 Ω Wirewound Surface Mount Resistor ±5 % 3 W - SMW3100RJT
  • RS Stock No. 163-9711
  • Mfr. Part No. SMW3100RJT
Subtotal (1 reel of 1000 units)
£185.00(exc. VAT)
£0.185/unit
In Stock
Murata Ferrite Bead 800 μm (Surface) (0603) (Chip Ferrite Bead), 220 Ω impedance at 100 MHz
  • RS Stock No. 167-5787
  • Mfr. Part No. BLM18KG221SN1D
Subtotal (1 reel of 4000 units)
£80.00(exc. VAT)
£0.02/unit
In Stock
TDK 4700 μF Capacitor 35V dc, Snap-in
  • RS Stock No. 171-3273
  • Mfr. Part No. B41231B7478M060
Subtotal (1 pack of 2 units)
£3.82(exc. VAT)
£1.91/unit
In Stock
Wurth Elektronik, 744384, 4020 Shielded Surface Mount Inductor with a Magnetic Iron Alloy Core, 3.3 μH Shielded ±20 %
  • RS Stock No. 427-233P
  • Mfr. Part No. 7443844020033
Subtotal 5 units (supplied on a continuous strip)
£8.14(exc. VAT)
£1.628/unit
1
2473
8425
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