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.

48794 Products showing for Capacitors

2422 of 999+
In Stock
  • RS stock no. 105-470P
  • Mfr. Part No. ALP20A222AB040
Subtotal 1 unit (supplied in a box)
R 172,12(exc. VAT)
In Stock
  • RS stock no. 616-7834P
  • Mfr. Part No. PHE448SB3470JR06
Subtotal 10 units (supplied in a box)
R 150,62(exc. VAT)
In Stock
  • RS stock no. 280-3279P
  • Mfr. Part No. MAL202126471E3
Subtotal 1 unit (supplied on a continuous strip)
R 82,73(exc. VAT)
In Stock
  • RS stock no. 288-9974
  • Mfr. Part No. EZPV70146MTU
Subtotal (1 box of 150 units)
R 19 213,35(exc. VAT)
Last RS stock
  • RS stock no. 198-5345P
  • Mfr. Part No. AC0612JRNPO9BN101
Subtotal 50 units (supplied on a continuous strip)
R 131,70(exc. VAT)
In Stock
  • RS stock no. 901-5332P
  • Mfr. Part No. ZRB18AR60J476ME01L
Subtotal 10 units (supplied on a continuous strip)
R 63,65(exc. VAT)
In Stock
  • RS stock no. 781-584P
  • Mfr. Part No. EEHZE1H101P
Subtotal 5 units (supplied on a continuous strip)
R 288,53(exc. VAT)
In Stock
  • RS stock no. 173-4258
  • Mfr. Part No. ALS30A681KF500
Subtotal (1 bag of 24 units)
R 10 949,952(exc. VAT)
In Stock
  • RS stock no. 198-8239P
  • Mfr. Part No. CS0805KKX7R8BB334
Subtotal 100 units (supplied on a continuous strip)
R 92,20(exc. VAT)
Temporarily out of stock
  • RS stock no. 163-3458
  • Mfr. Part No. 890334023006
Subtotal (1 bag of 500 units)
R 1 892,50(exc. VAT)
Currently unavailable
  • RS stock no. 198-8324P
  • Mfr. Part No. CS1206KKX7R7BB225
Subtotal 50 units (supplied on a continuous strip)
R 304,35(exc. VAT)
In Stock
  • RS stock no. 844-2803P
  • Mfr. Part No. LGU2D102MELA
Subtotal 1 unit (supplied in a box)
R 84,36(exc. VAT)
Temporarily out of stock
  • RS stock no. 727-0271P
  • Mfr. Part No. ECHU1C103JX5
Subtotal 10 units (supplied on a continuous strip)
R 52,66(exc. VAT)
Temporarily out of stock
  • RS stock no. 188-2217P
  • Mfr. Part No. TMCMC0G337MTRF
Subtotal 5 units (supplied on a continuous strip)
R 140,66(exc. VAT)
In Stock
  • RS stock no. 767-2813P
  • Mfr. Part No. 400LLE2,2MEFC8X11.5
Subtotal 10 units (supplied in a bag)
R 99,09(exc. VAT)
In Stock
  • RS stock no. 711-0842P
Subtotal 25 units (supplied in a bag)
R 75,875(exc. VAT)
Temporarily out of stock
  • RS stock no. 280-3449
  • Mfr. Part No. MAL213630221E3
Subtotal (1 box of 800 units)
R 8 860,80(exc. VAT)
In Stock
  • RS stock no. 762-1777P
  • Mfr. Part No. UBT1J470MPD8
Subtotal 5 units (supplied in a bag)
R 79,70(exc. VAT)
Currently unavailable
  • RS stock no. 209-1465
  • Mfr. Part No. T598B157M004ATE070
Subtotal (1 tape of 5 units)
R 41,29(exc. VAT)
Temporarily out of stock
  • RS stock no. 839-5738
  • Mfr. Part No. 865060262011
Subtotal (1 pack of 2 units)
R 63,58(exc. VAT)
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