Recently searched

    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 include 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 passive component that can gather and hold a charge in a way that is similar to how a battery functions. This type of passive component is made of 2 close conductors (usually plates) that are separated by a dielectric material. The plates accumulate electric charge when connected to a power source. One plate accumulates a positive charge and the other plate accumulates a 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

    Another type of passive component is the resistor. 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, it's 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 component 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; some examples would include windings from a transformer and inductors. It is useful because of its low electrical conductivity and high magnetic permeability.

    Surge Protection Components

    Surge protectors are a part of nearly every home and office today. They provide your expensive electronic equipment and circuitry with added protection against the harmful effects of electricity surges, improving their longevity.

    RS is a supplier of passive components with a wide variety of quality products from leading manufacturers across the world.

    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

    7050 Products showing for Passive Components

    1 / 353
    RS PRO 32mm Silver Potentiometer Knob for 6.4mm Shaft Splined
    • RS Stock No. 499-955
    Each
    MYR30.62
    RS PRO 98dB Panel Mount Continuous Internal Buzzer, 42.5 (Dia.) x 33mm, 4V dc Min, 28V dc Max
    • RS Stock No. 535-8483
    Each
    MYR99.34
    RS PRO Surge Suppressor Unit 253 V Maximum Voltage Rating 6.5kA Maximum Surge Current EMC Filter
    • RS Stock No. 206-7926
    Each
    MYR1,358.96
    RS PRO 10μF Aluminium Electrolytic Capacitor 25V dc, Axial, Through Hole
    • RS Stock No. 170-1078
    Each (In a Bag of 300)
    MYR1.077
    RS PRO 10kΩ Rotary Potentiometer 1-Gang Panel Mount
    • RS Stock No. 842-7006
    Each
    MYR51.59
    RS PRO 21mm Black Potentiometer Knob for 6.4mm Shaft Splined
    • RS Stock No. 100-054
    Each
    MYR21.18
    RS PRO 1kΩ Metal Film Resistor 0.25W ±0.5%
    • RS Stock No. 174-3038
    Each (In a Pack of 100)
    MYR0.304
    RS PRO 22Ω Metal Film Resistor 1W ±0.5%
    • RS Stock No. 174-2746
    Each (In a Pack of 100)
    MYR0.402
    RS PRO 90dB Lead Wire Buzzer Internal Piezo Buzzer, 41.8 (Dia.) x 16mm, 3V dc Min, 28V dc Max
    • RS Stock No. 179-7426
    Each (In a Tray of 49)
    MYR16.492
    RS PRO 10kΩ Carbon Film Resistor 0.25W ±5%
    • RS Stock No. 707-7745
    Each (In a Pack of 10)
    MYR0.131
    RS PRO 470Ω Metal Film Resistor 0.4W ±0.25%
    • RS Stock No. 174-3093P
    Each (Supplied in a Box)
    MYR0.386
    RS PRO Metal Oxide Varistor
    • RS Stock No. 240-236
    Each
    MYR355.49
    RS PRO 11Ω, 0603 (1608M) Thick Film SMD Resistor ±1% 0.1W
    • RS Stock No. 804-8697
    Each (On a Reel of 5000)
    MYR0.017
    RS PRO 820Ω Carbon Film Resistor 2W ±5%
    • RS Stock No. 707-8867
    Each (In a Pack of 10)
    MYR0.512
    RS PRO 20A 520 V ac, Chassis Mount Power Line Filter 3 Phase
    • RS Stock No. 237-8750
    Each
    MYR172.41
    RS PRO 20mm Black Potentiometer Knob for 6mm Shaft Splined
    • RS Stock No. 777-7319
    Each
    MYR16.03
    RS PRO 1kΩ Carbon Film Resistor 0.5W ±5%
    • RS Stock No. 707-8221
    Each (In a Pack of 10)
    MYR0.135
    RS PRO, 200Ω 100W Wire Wound Chassis Mount Resistor ±5%
    • RS Stock No. 175-2445
    Each
    MYR51.91
    RS PRO 100μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole
    • RS Stock No. 711-1090P
    Each (Supplied in a Bag)
    MYR0.361
    RS PRO 1kΩ Wirewound Potentiometer 10-Turns Panel Mount
    • RS Stock No. 173-0747
    Each (In a Box of 50)
    MYR32.571
    Results per page
    1
    2
    3
    353

    Guides & Articles

    Article image
    Capacitors Guide
    In our comprehensive Capacitors Guide we look at MLCC's and the alternatives available
    Read more
    Article image
    Variable Resistors Guide
    Everything you need to know about variable resistors
    Read more

    Related links