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

1513 of 999+
Vishay 1.5kΩ Thin Film Resistor 0.6W ±1% MRS25000C1501FCT00
  • RS Stock No. 683-3219P
  • Mfr. Part No. MRS25000C1501FCT00
Each (Supplied on a Reel)
£0.088(exc. VAT)
EPCOS B32923C Metallised Polypropylene Film Capacitor, 305 V ac, 630 V dc, ±20%, 680nF, Through Hole
  • RS Stock No. 172-5659
  • Mfr. Part No. B32923C3684M000
Each (In a Bag of 540)
£0.304(exc. VAT)
TDK 2.7nF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±5% , Through Hole
  • RS Stock No. 194-0507
  • Mfr. Part No. FG28C0G1H272JNT00
Each (In a Pack of 10)
£0.078(exc. VAT)
Same Sky 80dB Through Hole Internal Magnetic Buzzer, 5V dc Min, 7V dc Max
  • RS Stock No. 259-6206P
  • Mfr. Part No. CMI-9605-0580T
Each (Supplied in a Box)
£1.09(exc. VAT)
Arcol, 150Ω 100W Wire Wound Chassis Mount Resistor HS100E6 150R F M193 ±1%
  • RS Stock No. 195-4170
  • Mfr. Part No. HS100E6 150R F M193
Each (In a Bag of 16)
£8.519(exc. VAT)
TE Connectivity, CRGH Thick Film, SMT 121 Resistor Kit, with 100 pieces, 10 Ω → 1MΩ
  • RS Stock No. 207-4708
  • Mfr. Part No. CRGH0603F-LAB-KIT
Each
£420.59(exc. VAT)
Elma 14.5mm Black Potentiometer Knob Cap, 040-3025
  • RS Stock No. 243-9580
  • Mfr. Part No. 040-3025
Each
£1.78(exc. VAT)
Abracon 7.3728MHz Crystal ±30ppm HC49/US 11.4 x 4.7 x 3.3mm
  • RS Stock No. 171-0227
  • Mfr. Part No. ABLS2-7.3728MHZ-D4Y-T
Each (On a Reel of 1000)
£0.148(exc. VAT)
Eaton 10F Supercapacitor -10 → +30% Tolerance 2.5V dc, Through Hole
  • RS Stock No. 763-7797
  • Mfr. Part No. HB1030-2R5106-R
Each
£3.65(exc. VAT)
Vishay CRCW 2.2kΩ, 0402 (1005M) Thick Film SMD Resistor ±1% 0.2W
  • RS Stock No. 812-1644P
  • Mfr. Part No. CRCW04022K20FKEDHP
Each (Supplied on a Reel)
£0.026(exc. VAT)
Yageo 330Ω Metal Film Fixed Resistor 0.4W ±1% MF0204FTE52-330R
  • RS Stock No. 199-7821
  • Mfr. Part No. MF0204FTE52-330R
Each (On a Tape of 100)
£0.014(exc. VAT)
Vishay Incremental Mechanical Rotary Encoder with a 60 mm (Not Indexed), Screw Mount
  • RS Stock No. 362-603
  • Mfr. Part No. RAIK060I11318JB694
Each
£212.32(exc. VAT)
Wurth Elektronik 100nF Multilayer Ceramic Capacitor MLCC, 10V dc V, ±10% , SMD
  • RS Stock No. 839-2720P
  • Mfr. Part No. 885012206020
Each (Supplied on a Reel)
£0.038(exc. VAT)
KOA, TLR Current Sensing, SMT 10 Resistor Kit, with 150 pieces, 1mΩ
  • RS Stock No. 241-0652
  • Mfr. Part No. TLR3AP-KIT
1 Kit
£28.39(exc. VAT)
KEMET R46 Metallised Polypropylene Film Capacitor, 275V ac, ±20%, 10nF, Through Hole
  • RS Stock No. 165-0062
  • Mfr. Part No. R46KF210040H1M
Each (In a Pack of 10)
£0.31(exc. VAT)
Same Sky 85dB Through Hole Internal Magnetic Buzzer, 4V dc Min, 7V dc Max
  • RS Stock No. 259-6197
  • Mfr. Part No. CMI-1295-0585T
Each (In a Pack of 5)
£0.956(exc. VAT)
Arcol 9.09kΩ Metal Film Resistor 0.25W ±0.1% MRA02079K09BTA015
  • RS Stock No. 166-4450
  • Mfr. Part No. MRA02079K09BTA015
Each (In a Box of 500)
£0.331(exc. VAT)
Vishay 1μF MnO2 Tantalum Capacitor 20V dc, 595D Series
  • RS Stock No. 799-0073
  • Mfr. Part No. 595D105X9020T2T
Each (In a Pack of 2)
£2.185(exc. VAT)
Taoglas GW.51.5153W Baton/Stick WiFi Antenna with SMA Connector, WiFi
  • RS Stock No. 690-870
  • Mfr. Part No. GW.51.5153W
Each (In a Bag of 50)
£7.661(exc. VAT)
TDK 4.7nF Multilayer Ceramic Capacitor MLCC, 630V dc V, ±5% , SMD
  • RS Stock No. 179-4973
  • Mfr. Part No. CGA5F4C0G2J472J085AA
Each (On a Reel of 4000)
£0.129(exc. VAT)
Results per page
1
1513
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