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.

48954 Products showing for Capacitors

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  • RS stock no. 706-3376
Subtotal (1 unit)
R 424,10(exc. VAT)
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  • RS stock no. 209-8643
  • Mfr. Part No. B41252A7159M060
Subtotal (1 unit)
R 111,35(exc. VAT)
In Stock
  • RS stock no. 173-3442
  • Mfr. Part No. B41252A8478M060
Subtotal (1 bag of 130 units)
R 6 223,49(exc. VAT)
In Stock
  • RS stock no. 171-3192
  • Mfr. Part No. B41231A8228M060
Subtotal (1 box of 160 units)
R 3 979,84(exc. VAT)
Temporarily out of stock
  • RS stock no. 167-1461
  • Mfr. Part No. LGU1E103MELA
Subtotal (1 bag of 250 units)
R 10 461,00(exc. VAT)
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  • RS stock no. 726-0735
  • Mfr. Part No. 450BXC22MEFC16X20
Subtotal (1 pack of 2 units)
R 70,81(exc. VAT)
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  • RS stock no. 771-4712P
  • Mfr. Part No. B41252A4479M000
Subtotal 1 unit (supplied in a bag)
R 162,18(exc. VAT)
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  • RS stock no. 838-7920
  • Mfr. Part No. 865230542002
Subtotal (1 pack of 25 units)
R 86,925(exc. VAT)
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  • RS stock no. 616-9701
  • Mfr. Part No. CC0402KRX7R7BB104
Subtotal (1 pack of 10000 units)
R 715,70(exc. VAT)
Unavailable
  • RS stock no. 624-2480P
  • Mfr. Part No. GRM188R71H104KA93D
Subtotal 50 units (supplied on a continuous strip)
R 85,05(exc. VAT)
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Subtotal (1 unit)
R 203,24(exc. VAT)
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  • RS stock no. 625-0267
  • Mfr. Part No. CC0603JRNPO9BN101
Subtotal (1 pack of 4000 units)
R 467,69(exc. VAT)
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  • Mfr. Part No. 400BXF27M12.5X20
Subtotal (1 unit)
R 72,17(exc. VAT)
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  • RS stock no. 198-5343
  • Mfr. Part No. AC0603KRX7R9BB562
Subtotal (1 tape of 250 units)
R 133,50(exc. VAT)
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  • RS stock no. 715-2616
  • Mfr. Part No. UPW1E100MDD
Subtotal (1 pack of 10 units)
R 24,36(exc. VAT)
In Stock
  • RS stock no. 199-2219
  • Mfr. Part No. CC0402KRX5R9BB104
Subtotal (1 reel of 10000 units)
R 950,00(exc. VAT)
Temporarily out of stock
  • RS stock no. 756-8219
  • Mfr. Part No. EMZA350ARA470MF61G
Subtotal (1 pack of 5 units)
R 55,57(exc. VAT)
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  • RS stock no. 261-0683
  • Mfr. Part No. B41866C7687M000
Subtotal (1 bag of 2 units)
R 52,26(exc. VAT)
Temporarily out of stock
  • RS stock no. 173-3472
  • Mfr. Part No. B43544F9567M060
Subtotal (1 box of 60 units)
R 9 439,50(exc. VAT)
In Stock
  • RS stock no. 763-9412
  • Mfr. Part No. 25PK100MEFC5X11
Subtotal (1 pack of 25 units)
R 58,65(exc. VAT)
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