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.

51170 Products showing for Capacitors

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  • RS stock no. 135-3474
  • Mfr. Part No. R76PD1100SE00J
Subtotal (1 pack of 10 units)
R 94,41(exc. VAT)
R 9,441/unit
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  • RS stock no. 756-7664P
  • Mfr. Part No. EKXJ451ELL150MJ25S
Subtotal 5 units (supplied in a bag)
R 100,40(exc. VAT)
R 20,08/unit
Temporarily out of stock
  • RS stock no. 247-8183
  • Mfr. Part No. GRM32ER71E226KE15L
Subtotal (1 tape of 10 units)
R 137,38(exc. VAT)
R 13,738/unit
In Stock
  • RS stock no. 882-9238
  • Mfr. Part No. B32672L8123J000
Subtotal (1 pack of 10 units)
R 73,14(exc. VAT)
R 7,314/unit
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  • RS stock no. 183-7395
  • Mfr. Part No. AY1102M37Y5UC63L0
Subtotal (1 pack of 25 units)
R 124,125(exc. VAT)
R 4,965/unit
In Stock
  • RS stock no. 747-2008
  • Mfr. Part No. EEUFR1V330
Subtotal (1 pack of 25 units)
R 83,425(exc. VAT)
R 3,337/unit
In Stock
  • RS stock no. 311-1030
  • Mfr. Part No. PME271MD6100MR30
Subtotal (1 pack of 5 units)
R 231,34(exc. VAT)
R 46,268/unit
In Stock
  • RS stock no. 852-3270
  • Mfr. Part No. K104K15X7RF53H5
Subtotal (1 unit)
R 4,75(exc. VAT)
R 4,75/unit
In Stock
  • RS stock no. 198-8043P
  • Mfr. Part No. CC0805JRNPO9BN470
Subtotal 250 units (supplied on a reel)
R 76,00(exc. VAT)
R 0,304/unit
In Stock
  • RS stock no. 896-1638
  • Mfr. Part No. B32653A0104J000
Subtotal (1 pack of 5 units)
R 122,66(exc. VAT)
R 24,532/unit
In Stock
  • RS stock no. 228-7079
  • Mfr. Part No. ECA2AM100
Subtotal (1 pack of 5 units)
R 22,41(exc. VAT)
R 4,482/unit
Last RS stock
  • RS stock no. 194-3730
  • Mfr. Part No. B32778G1276K000
Subtotal (1 unit)
R 311,16(exc. VAT)
R 311,16/unit
In Stock
  • RS stock no. 891-9781
  • Mfr. Part No. C1206C105K1RACTU
Subtotal (1 pack of 20 units)
R 82,64(exc. VAT)
R 4,132/unit
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  • RS stock no. 637-821
  • Mfr. Part No. ECWFJ80705JA
Subtotal (1 unit)
R 62,02(exc. VAT)
R 62,02/unit
Limited stock
  • RS stock no. 186-2202
  • Mfr. Part No. SCMR14L334SSBB0
Subtotal (1 unit)
R 99,43(exc. VAT)
R 99,43/unit
In Stock
  • RS stock no. 194-3666
  • Mfr. Part No. B32653A6224K000
Subtotal (1 pack of 10 units)
R 148,00(exc. VAT)
R 14,80/unit
In Stock
  • RS stock no. 708-3721
  • Mfr. Part No. EEUFR1E471
Subtotal (1 pack of 10 units)
R 82,36(exc. VAT)
R 8,236/unit
In Stock
  • RS stock no. 222-9640
  • Mfr. Part No. UVY1E472MHD
Subtotal (1 pack of 5 units)
R 122,62(exc. VAT)
R 24,524/unit
In Stock
  • RS stock no. 194-0550
  • Mfr. Part No. FG28X5R1H105KRT00
Subtotal (1 pack of 10 units)
R 22,55(exc. VAT)
R 2,255/unit
In Stock
  • RS stock no. 210-500
  • Mfr. Part No. PME271M610MR30
Subtotal (1 pack of 5 units)
R 204,62(exc. VAT)
R 40,924/unit
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