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. 167-8105
  • Mfr. Part No. UVY1H102MHD
Subtotal (1 box of 100 units)
R 964,60(exc. VAT)
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  • RS stock no. 839-4255
  • Mfr. Part No. 860160275041
Subtotal (1 pack of 5 units)
R 137,08(exc. VAT)
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  • RS stock no. 108-2435
  • Mfr. Part No. FKS2 1.0N 100M
Subtotal (1 pack of 5 units)
R 71,21(exc. VAT)
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  • RS stock no. 714-8566
  • Mfr. Part No. LGL2G271MELA30
Subtotal (1 unit)
R 153,92(exc. VAT)
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  • RS stock no. 519-3696
  • Mfr. Part No. LGU2G101MELA
Subtotal (1 unit)
R 63,76(exc. VAT)
Temporarily out of stock
  • RS stock no. 222-9606
  • Mfr. Part No. UHE1H102MHD3TN
Subtotal (1 pack of 5 units)
R 151,74(exc. VAT)
Last RS stock
  • RS stock no. 224-4224
  • Mfr. Part No. 16YXF2200M12.5X25
Subtotal (1 pack of 5 units)
R 102,41(exc. VAT)
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  • RS stock no. 228-6931P
  • Mfr. Part No. ECA1HM102
Subtotal 5 units (supplied in a bag)
R 101,58(exc. VAT)
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  • RS stock no. 839-6542
  • Mfr. Part No. 860020475015
Subtotal (1 pack of 10 units)
R 83,69(exc. VAT)
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  • RS stock no. 276-6102
Subtotal (1 unit)
R 177,89(exc. VAT)
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  • RS stock no. 171-9233
  • Mfr. Part No. R82CC4220Z370K
Subtotal (1 pack of 10 units)
R 119,04(exc. VAT)
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  • RS stock no. 691-1209
  • Mfr. Part No. C1206C106K8RACTU
Subtotal (1 pack of 10 units)
R 56,10(exc. VAT)
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  • RS stock no. 151-1546
  • Mfr. Part No. 200MS22ACMA1STD
Subtotal (1 unit)
R 356,31(exc. VAT)
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  • RS stock no. 449-0968
  • Mfr. Part No. EEUFC1C101
Subtotal (1 pack of 5 units)
R 27,00(exc. VAT)
Temporarily out of stock
  • RS stock no. 759-132P
  • Mfr. Part No. EEUFC2A100H
Subtotal 5 units (supplied as a tape)
R 20,58(exc. VAT)
In Stock
  • RS stock no. 520-1012
  • Mfr. Part No. UVR1H221MPD
Subtotal (1 pack of 25 units)
R 132,725(exc. VAT)
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  • RS stock no. 703-7563
  • Mfr. Part No. 35ZLH1000MEFC12.5X20
Subtotal (1 pack of 5 units)
R 96,25(exc. VAT)
Temporarily out of stock
  • RS stock no. 781-647P
  • Mfr. Part No. EEEFK1A471GP
Subtotal 5 units (supplied on a continuous strip)
R 75,80(exc. VAT)
In Stock
  • RS stock no. 815-1572
  • Mfr. Part No. GJM1555C1H1R8BB01D
Subtotal (1 pack of 100 units)
R 12,60(exc. VAT)
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  • RS stock no. 181-4673
Subtotal (1 pack of 10 units)
R 248,61(exc. VAT)
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