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

167705 Products showing for Passive Components

664 of 999+
In Stock
Bourns, SRN4018 Shielded Surface Mount Inductor with a Ferrite Core, 22 μH Semi Shielded ±20 % 900 mA Idc
  • RS Stock No. 246-3299P
  • Mfr. Part No. SRN4018-220M
Subtotal 10 units (supplied on a continuous strip)
£2.22(exc. VAT)
£0.222/unit
In Stock
Panasonic, V Surge Absorber 3.75 nF 5 A, Clamping 1650 V, Varistor 56 V
  • RS Stock No. 720-9866P
  • Mfr. Part No. ERZV10D560
Subtotal 10 units (supplied in a bag)
£2.09(exc. VAT)
£0.209/unit
In Stock
Bourns 53 10 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, 53RAD-R22-B15L
  • RS Stock No. 789-9425
  • Mfr. Part No. 53RAD-R22-B15L
Subtotal (1 unit)
£6.46(exc. VAT)
£6.46/unit
Last RS stock
KYOCERA AVX 10 μF MnO2 Tantalum Capacitor 50V dc, TAJ Series
  • RS Stock No. 699-3166
  • Mfr. Part No. TAJD106K050RNJ
Subtotal (1 unit)
£1.00(exc. VAT)
£1.00/unit
Limited stock
Panasonic ERA 120 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - ERA3AEB124V
  • RS Stock No. 566-373
  • Mfr. Part No. ERA3AEB124V
Subtotal (1 pack of 5 units)
£0.38(exc. VAT)
£0.076/unit
Currently unavailable
Vishay CRCW 392 Ω, 1206 Thick Film Surface Mount Resistor ±1 % Surface 0.25 W
  • RS Stock No. 679-2089P
  • Mfr. Part No. CRCW1206392RFKEA
Subtotal 50 units (supplied on a continuous strip)
£0.35(exc. VAT)
£0.007/unit
In Stock
KEMET 2.2 μF Multilayer Ceramic Capacitor, 50V dc, ±20 %, Through Hole Radial
  • RS Stock No. 173-4882
  • Mfr. Part No. C330C225M5U5TA
Subtotal (1 bag of 250 units)
£85.50(exc. VAT)
£0.342/unit
In Stock
KEMET 100 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 146-6577
  • Mfr. Part No. C0805C104K1RACTU
Subtotal (1 reel of 2500 units)
£40.00(exc. VAT)
£0.016/unit
In Stock
Bourns 2 mH 3.5 A Common Mode Choke 0.03 Ω
  • RS Stock No. 736-1147P
  • Mfr. Part No. PM3700-50-RC
Subtotal 1 unit (supplied on a continuous strip)
£2.12(exc. VAT)
£2.12/unit
In Stock
Vishay RCH50S33000JS06, 3.3 kΩ 50 W Thick Film Chassis Mount Resistor ±5 %
  • RS Stock No. 789-0784
  • Mfr. Part No. RCH50S33000JS06
Subtotal (1 unit)
£19.66(exc. VAT)
£19.66/unit
In Stock
KEMET 1 μF MnO2 Tantalum Capacitor 20V dc, Surface, T491 Series
  • RS Stock No. 801-5473P
  • Mfr. Part No. T491A105K020AT
Subtotal 50 units (supplied on a continuous strip)
£6.50(exc. VAT)
£0.13/unit
In Stock
Vishay CRCW 499 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CRCW0603499RFKEA
  • RS Stock No. 679-0447
  • Mfr. Part No. CRCW0603499RFKEA
Subtotal (1 pack of 50 units)
£0.55(exc. VAT)
£0.011/unit
In Stock
Vishay 8.2 kΩ Metal Film Resistor 2 W 5 %
  • RS Stock No. 170-1847
  • Mfr. Part No. PR02000208201JA100
Subtotal (1 reel of 1000 units)
£83.00(exc. VAT)
£0.083/unit
In Stock
Panasonic 47 μF Capacitor 25V dc, Through Hole - EEUEB1E470S Radial Lead
  • RS Stock No. 747-2055
  • Mfr. Part No. EEUEB1E470S
Subtotal (1 pack of 25 units)
£3.075(exc. VAT)
£0.123/unit
In Stock
Vishay 357 2 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, 357B2202MAB251S22
  • RS Stock No. 460-7453
  • Mfr. Part No. 357B2202MAB251S22
Subtotal (1 unit)
£19.99(exc. VAT)
£19.99/unit
In Stock
Panasonic ERJ-8CW 5 mΩ, 1206 Thick Film Surface Mount Fixed Resistor ±1 % Surface 1 W - ERJ8CWFR050V
  • RS Stock No. 287-483P
  • Mfr. Part No. ERJ8CWFR050V
Subtotal 10 units (supplied on a continuous strip)
£1.71(exc. VAT)
£0.171/unit
Temporarily out of stock
Panasonic 100 μF Capacitor 25V dc, Surface Solder - EEEHB1E101P
  • RS Stock No. 155-488
  • Mfr. Part No. EEEHB1E101P
Subtotal (1 pack of 5 units)
£3.15(exc. VAT)
£0.63/unit
In Stock
TDK Thermistor, NTC Type 2.5 Ω 7 mm 15 mm 7 mm
  • RS Stock No. 216-1422
  • Mfr. Part No. B57237S0259M000
Subtotal (1 unit)
£0.68(exc. VAT)
£0.68/unit
In Stock
TE Connectivity 100 mΩ Metal Film Resistor 0.5 W 5 % LR1LJR10
  • RS Stock No. 135-487
  • Mfr. Part No. LR1LJR10
Subtotal (1 pack of 10 units)
£1.61(exc. VAT)
£0.161/unit
In Stock
KEMET 22 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 801-5372
  • Mfr. Part No. C0603C223K1RACTU
Subtotal (1 pack of 50 units)
£1.05(exc. VAT)
£0.021/unit
1
664
8386
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

Be the first to know about our latest products and offers

Email address

The personal information you provide to us when signing up to this mailing list will be processed in line with the Privacy Policy