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    Capacitors

    Capacitors are passive electrical components found in almost all electronics applications. Our range includes over 60,000 different capacitors including aluminium, tantalum, polymer, polyester film and ceramic capacitors. We source from globally renowned manufacturers AVX, Murata, KEMET, Panasonic, TDK and many more, so that you can rely on performance.

    What is a capacitor and what does it do?

    A capacitor is a device used to store energy as an electric charge, similar to a battery but they are able to release the charge much faster. The amount it's able to store is known as capacitance, this is measured in Farads (F). They comprise 2 metal plates (conductors) separated by an electrical insulator (dielectric).

    What capacitor types are available?

    There are many different types available with detailed specifications for their required function. The main elements are available in varying materials and these determine many properties of the capacitor. Some factors to consider are:

    • Metal plate material - e.g silver, tantalum, aluminium
    • Dielectric plate material - paper, film, ceramic, glass
    • Max voltage - cannot be exceeded or the device will break
    • Size - capacitance and dimensions
    • Tolerance - variance on the capacitance value
    • Mounting type - how it is fixed to the circuit
    • ESR (Equivalent series resistance) - resistance of the terminals

    Applications of capacitors

    Capacitors are found all around us, they are used in most electronics from fans to hybrid electric cars - there are over 500 just in a typical smartphone. Here are some of their uses:

    • Decoupling capacitors - can control high-frequency noise, removing voltage ripples from the power supply.
    • Energy storage and supply - deliver stored energy bursts quickly, like a camera flash for example.
    • Signal filtering - they are able to block low-frequency signals and allow higher-frequencies to pass through. Useful in telecommunications.
    Aluminium Capacitors
    Aluminium Capacitors
    Array Capacitors
    Array Capacitors
    Capacitors Accessories
    Capacitors Accessories
    Feedthrough Capacitors
    Feedthrough Capacitors
    Film Capacitors
    Film Capacitors
    MLCCs - Multilayer Ceramic Capacitors
    MLCCs - Multilayer Ceramic Capacitors
    Mica Capacitors
    Mica Capacitors
    Polymer Capacitors
    Polymer Capacitors
    Power Factor Correction Capacitors
    Power Factor Correction Capacitors
    Single Layer Ceramic Capacitors
    Single Layer Ceramic Capacitors
    Supercapacitors
    Supercapacitors
    Tantalum Capacitors
    Tantalum Capacitors
    Variable Trimmer Capacitors
    Variable Trimmer Capacitors

    1564 Products showing for Capacitors

    1 of 79
    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 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 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
    RS PRO Polypropylene Film Capacitor, 440V ac, ±10%, 5μF, Screw Mount
    • RS Stock No. 196-4551
    Each
    SGD16.36
    RS PRO 1μF Electrolytic Tantalum Electrolytic Capacitor 50V dc
    • RS Stock No. 181-4666
    Each (In a Pack of 20)
    SGD0.745
    RS PRO Polypropylene Film Capacitor, 440V ac, ±10%, 10μF, Screw Mount
    • RS Stock No. 196-4573
    Each
    SGD13.36
    RS PRO 22μF Electrolytic Tantalum Electrolytic Capacitor 6.3V dc
    • RS Stock No. 181-4746
    Each (In a Pack of 50)
    SGD0.502
    RS PRO Variable Trimmer Capacitor 10 → 50pF 100V Ceramic
    • RS Stock No. 175-3548
    Each (In a Pack of 25)
    SGD0.374
    RS PRO 220μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole
    • RS Stock No. 711-1450
    Each (In a Pack of 25)
    SGD0.31
    RS PRO Polypropylene Film Capacitor, 440V ac, ±10%, 4μF, Screw Mount
    • RS Stock No. 196-4539
    Each
    SGD12.05
    RS PRO Polypropylene Film Capacitor, 440V ac, ±10%, 4μF, Screw Mount
    • RS Stock No. 196-4753
    Each
    SGD16.33
    RS PRO 1μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole
    • RS Stock No. 711-1407
    Each (In a Pack of 100)
    SGD0.092
    RS PRO Polypropylene Film Capacitor, 440V ac, ±10%, 15μF, Screw Mount
    • RS Stock No. 196-4696
    Each
    SGD25.29
    RS PRO Polypropylene Film Capacitor, 440V ac, ±10%, 10μF, Screw Mount
    • RS Stock No. 196-4804
    Each
    SGD25.13
    RS PRO Polypropylene Film Capacitor, 440V ac, ±10%, 5μF, Screw Mount
    • RS Stock No. 196-4775
    Each
    SGD17.72
    RS PRO Polypropylene Film Capacitor, 440V ac, ±10%, 1μF, Screw Mount
    • RS Stock No. 196-4501
    Each
    SGD11.42
    RS PRO Polypropylene Film Capacitor, 440V ac, ±10%, 2μF, Screw Mount
    • RS Stock No. 196-4731
    Each
    SGD12.64
    RS PRO 470μF Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole
    • RS Stock No. 181-5411
    Each (In a Pack of 25)
    SGD0.503
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