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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.

    50039 Products showing for Capacitors

    1 of 999+
    • RS stock no. 714-8831
    • Mfr. Part No. PCK0E391MCO1GS
    Each (In a Pack of 2)
    R 24,825
    • RS stock no. 749-7256
    • Mfr. Part No. 450CXW120MEFC18X31.5
    Each
    R 166,44
    • RS stock no. 381-9015
    • Mfr. Part No. ALS30A103DA040
    Each
    R 263,10
    • RS stock no. 210-500
    • Mfr. Part No. PME271M610MR30
    Each (In a Pack of 5)
    R 37,81
    • RS stock no. 365-4133
    • Mfr. Part No. ECA1EHG221
    Each (In a Pack of 5)
    R 7,38
    • RS stock no. 240-3839
    • Mfr. Part No. EEUFC1H470B
    Each (In a Pack of 10)
    R 3,87
    • RS stock no. 262-1869
    • Mfr. Part No. CC45SL3AD221JYNNA
    Each (In a Bag of 20)
    R 3,194
    • RS stock no. 846-6997
    • Mfr. Part No. LGU2A472MELC
    Each
    R 130,30
    • RS stock no. 365-4717
    • Mfr. Part No. ECA2GHG010
    Each (In a Pack of 5)
    R 7,912
    • RS stock no. 526-1519
    • Mfr. Part No. EEUFM1E331
    Each (In a Pack of 5)
    R 10,47
    • RS stock no. 377-8914
    • Mfr. Part No. C274AC34800SA0J
    Each
    R 141,49
    • RS stock no. 302-9818
    • Mfr. Part No. FN7513-16-M4
    Each
    R 1 498,63
    • RS stock no. 475-8781
    • Mfr. Part No. USR1C100MDD
    Each (In a Pack of 5)
    R 2,906
    • RS stock no. 732-8226
    • Mfr. Part No. EEUTP1E202S
    Each (In a Pack of 2)
    R 44,79
    • RS stock no. 851-5409
    • Mfr. Part No. UPW1E471MPD6
    Each
    R 10,12
    • RS stock no. 526-1216
    • Mfr. Part No. EEUFM1A471
    Each (In a Pack of 5)
    R 7,38
    • RS stock no. 741-6960
    • Mfr. Part No. UHV-7A
    Each
    R 1 485,69
    • RS stock no. 171-9180
    • Mfr. Part No. R71VN41504030K
    Each (In a Pack of 5)
    R 34,086
    • RS stock no. 384-7767
    • Mfr. Part No. C4CAYUC2330AA0J
    Each
    R 101,29
    • RS stock no. 749-7136
    • Mfr. Part No. 10YXJ220M5X11
    Each (In a Pack of 25)
    R 2,837
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