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

    7029 Products showing for Passive Components

    1 of 352
    RS PRO 100μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole
    • RS Stock No. 707-5806
    Each (In a Pack of 50)
    SGD0.208
    RS PRO 85dB Panel Mount Continuous Internal Buzzer, 28 (Dia.) x 24.4mm, 3V dc Min, 28V dc Max
    • RS Stock No. 622-1578
    Each
    SGD5.00
    RS PRO Spindle Lock 13.51mm, For Use With 3/8 in Bushes with 32 TPI White-Thread & 1/4 in Shaft
    • RS Stock No. 482-2450
    Each (In a Pack of 5)
    SGD6.80
    RS PRO 470Ω Metal Film Resistor 0.4W ±0.25%
    • RS Stock No. 174-3093
    Each (In a Pack of 100)
    SGD0.116
    RS PRO Panel Mount Piezo Buzzer, 12 x 0.22mm, 30V Max
    • RS Stock No. 837-7844
    Each (In a Bag of 5)
    SGD1.328
    RS PRO 28mm Black, Grey Potentiometer Knob for 6mm Shaft Splined
    • RS Stock No. 259-7045
    Each (In a Pack of 5)
    SGD3.64
    RS PRO 13mm Grey Potentiometer Knob for 6.4mm Shaft D Shaped
    • RS Stock No. 467-6718
    Each (In a Pack of 10)
    SGD1.055
    RS PRO 1kΩ Carbon Film Resistor 0.25W ±5%
    • RS Stock No. 707-7666
    Each (In a Pack of 10)
    SGD0.192
    RS PRO 16A 250 V ac, Chassis Mount EMC Filter, Single Phase
    • RS Stock No. 237-8684
    Each
    SGD25.06
    RS PRO, 33Ω 300W Wire Wound Chassis Mount Resistor ±5%
    • RS Stock No. 174-2544
    1 Box of 1
    SGD72.88
    RS PRO 15μF Electrolytic Tantalum Electrolytic Capacitor 25V dc
    • RS Stock No. 181-4696
    Each (In a Pack of 20)
    SGD0.887
    RS PRO 1F Supercapacitor -20 → +80% Tolerance 3.6V dc
    • RS Stock No. 184-5518
    Each (In a Pack of 5)
    SGD2.122
    RS PRO 95dB Through Hole Continuous Internal Piezo Buzzer, 31.5 (Dia.) x 14.4mm, 3V dc Min, 20V dc Max
    • RS Stock No. 237-912
    Each
    SGD7.50
    RS PRO, 20Ω 25W Wire Wound Chassis Mount Resistor ±5%
    • RS Stock No. 131-1264
    Each (In a Pack of 5)
    SGD4.166
    RS PRO 680Ω Carbon Film Resistor 0.5W ±5%
    • RS Stock No. 707-8211
    Each (In a Pack of 10)
    SGD0.253
    RS PRO 270Ω Carbon Film Resistor 2W ±5%
    • RS Stock No. 707-8845
    Each (In a Pack of 10)
    SGD0.303
    RS PRO RC Network Capacitor 500 V Maximum Voltage Rating 1 Phase
    • RS Stock No. 813-430
    Each
    SGD48.11
    RS PRO 10kΩ Rotary Potentiometer 1-Gang Panel Mount
    • RS Stock No. 842-7002
    Each
    SGD15.40
    RS PRO 100μF Electrolytic Tantalum Electrolytic Capacitor 6.3V dc
    • RS Stock No. 181-4656
    Each (In a Pack of 10)
    SGD1.606
    RS PRO 100nF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole
    • RS Stock No. 707-5648
    Each (In a Pack of 100)
    SGD0.103
    Results per page
    1
    2
    3
    352

    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