Passive Components | Passive Electronics | RS
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

    142967 Products showing for Passive Components

    9 / 999+
    Welwyn 47Ω Wire Wound Resistor 3W ±5% W21-47RJI
    • RS Stock No. 139-3425
    • Mfr. Part No. W21-47RJI
    Each (In a Bag of 5)
    MYR5.762
    KEMET 3300μF Aluminium Electrolytic Capacitor 400V dc, Screw Terminal - ALS31A332NF400
    • RS Stock No. 381-9740
    • Mfr. Part No. ALS31A332NF400
    Each
    MYR282.79
    Wurth Elektronik Ferrite, Rubber Shielding Sheet, 330mm x 210mm x 0.5mm
    • RS Stock No. 736-2140
    • Mfr. Part No. 30405S
    Each
    MYR324.03
    Vishay 1kΩ Thin Film Resistor 0.4W ±1% MRS16000C1001FCT00
    • RS Stock No. 683-2768
    • Mfr. Part No. MRS16000C1001FCT00
    Each (In a Pack of 25)
    MYR0.757
    RS PRO 10kΩ Rotary Potentiometer 1-Gang Panel Mount
    • RS Stock No. 842-7090
    Each
    MYR50.66
    Panasonic ERA 5.1kΩ, 1206 (3216M) Thin Film SMD Resistor ±0.1% 0.25W
    • RS Stock No. 169-1234
    • Mfr. Part No. ERA8AEB512V
    Each (On a Reel of 5000)
    MYR0.868
    Murata 100nF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±10% , Through Hole
    • RS Stock No. 133-5719
    • Mfr. Part No. RDER71H104K0M1H03A
    Each (In a Pack of 25)
    MYR1.169
    Arcol, 680Ω 300W Wire Wound Chassis Mount Resistor HS300 680R J ±5%
    • RS Stock No. 136-351
    • Mfr. Part No. HS300 680R J
    Each
    MYR232.09
    Vishay, Through Hole Aluminium Capacitor Sample Kit
    • RS Stock No. 270-8796
    • Mfr. Part No. MAL217299001E3
    Each
    MYR260.21
    Tokyo Cosmos Electric 2MΩ Linear Potentiometer 1-Gang, RV24YN20S B302
    • RS Stock No. 252-0626
    • Mfr. Part No. RV24YN20S B302
    Each
    MYR30.15
    Vishay 330Ω Wire Wound Resistor 5W ±5% AC05000003300JAC00
    • RS Stock No. 683-1052
    • Mfr. Part No. AC05000003300JAC00
    Each (In a Pack of 10)
    MYR2.518
    TE Connectivity 1.2kΩ Metal Oxide Resistor 3W ±5% ROX3SJ1K2
    • RS Stock No. 214-2774
    • Mfr. Part No. ROX3SJ1K2
    Each (In a Pack of 10)
    MYR1.112
    CHEMI-CON 820μF Aluminium Electrolytic Capacitor 200V dc, Snap-In - EKMQ201VSN821MP45S
    • RS Stock No. 841-4769P
    • Mfr. Part No. EKMQ201VSN821MP45S
    Each (Supplied in a Box)
    MYR12.68
    Vishay 534 10kΩ Rotary Potentiometer 10-Turns 1-Gang Bushing Mount, 534-1-1-103
    • RS Stock No. 850-9794
    • Mfr. Part No. 534-1-1-103
    Each
    MYR152.83
    TDK Single Layer Ceramic Capacitor (SLCC) 0.01μF 2kV dc –20 %, +80 %, CK45, Through Hole
    • RS Stock No. 253-2845
    • Mfr. Part No. CK45-E3DD103ZYGNA
    Each (On a Tape of 10)
    MYR2.646
    Roxburgh EMC 4 mH ±20% Composite Iron Powder Toroidal Inductor, 1.9Ω Rdc, SF
    • RS Stock No. 288-216
    • Mfr. Part No. SF1121
    Each
    MYR16.93
    Schaffner, FN2010 20A 250 V ac/dc 0 → 400Hz, Chassis Mount EMI Filter, Fast-On, Single Phase
    • RS Stock No. 776-1121
    • Mfr. Part No. FN2010-20-06
    Each
    MYR129.92
    Vishay MCT 5.1kΩ, 0603 (1608M) Thin Film SMD Resistor ±1% 0.12W
    • RS Stock No. 188-6135P
    • Mfr. Part No. MCT06030C5101FP500
    Each (Supplied on a Reel)
    MYR0.154
    RS PRO 100Ω Metal Film Resistor 0.6W ±0.5%
    • RS Stock No. 174-3032
    Each (In a Pack of 100)
    MYR0.31
    RS PRO RC Capacitor 330nF 33Ω Tolerance ±20% 500V ac 3-ways , Chassis Mount
    • RS Stock No. 813-446
    Each
    MYR162.96
    Results per page
    1
    9
    7149

    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