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.

44352 Products showing for Capacitors

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  • Mfr. Part No. B32021A3222M000
Subtotal 10 units (supplied in a bag)
SGD5.50(exc. GST)
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  • RS Stock No. 691-1271
  • Mfr. Part No. C1812C106K3RACTU
Subtotal (1 pack of 5 units)
SGD13.06(exc. GST)
Last RS stock
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  • Mfr. Part No. T51D106M035C0120
Subtotal (1 unit)
SGD2.64(exc. GST)
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  • RS Stock No. 257-5895P
  • Mfr. Part No. CL10C102JB81PNC
Subtotal 100 units (supplied on a continuous strip)
SGD4.20(exc. GST)
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  • RS Stock No. 628-3807
  • Mfr. Part No. EEUFC1C471L
Subtotal (1 pack of 5 units)
SGD3.20(exc. GST)
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  • Mfr. Part No. 4.16.10.70.14
Subtotal (1 unit)
SGD22.57(exc. GST)
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  • Mfr. Part No. ALS40A472DB063
Subtotal (1 unit)
SGD22.07(exc. GST)
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  • RS Stock No. 108-2722
  • Mfr. Part No. MKS2D032201C00KSSD
Subtotal (1 pack of 5 units)
SGD3.47(exc. GST)
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  • RS Stock No. 485-6611
  • Mfr. Part No. 2222 339 20222
Subtotal (1 pack of 10 units)
SGD17.12(exc. GST)
Temporarily out of stock
  • RS Stock No. 185-5130
  • Mfr. Part No. 865090368008
Subtotal (1 reel of 2000 units)
SGD498.00(exc. GST)
Temporarily out of stock
  • RS Stock No. 739-5320P
  • Mfr. Part No. UVY1V472MHD
Subtotal 2 units (supplied in a bag)
SGD8.08(exc. GST)
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  • RS Stock No. 497-4141
  • Mfr. Part No. B32924C3155M000
Subtotal (1 pack of 5 units)
SGD13.52(exc. GST)
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  • Mfr. Part No. 593D107X9020E2TE3
Subtotal (1 pack of 5 units)
SGD11.16(exc. GST)
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  • RS Stock No. 820-0661
  • Mfr. Part No. GRM033R61E103KA12D
Subtotal (1 reel of 500 units)
SGD4.50(exc. GST)
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  • RS Stock No. 884-7276
  • Mfr. Part No. GRM188R61E475ME11D
Subtotal (1 pack of 20 units)
SGD2.32(exc. GST)
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  • RS Stock No. 116-903
  • Mfr. Part No. ECEA1VKS4R7
Subtotal (1 pack of 5 units)
SGD1.68(exc. GST)
In Stock
  • RS Stock No. 135-3585
  • Mfr. Part No. 4.16.17.08.06
Subtotal (1 unit)
SGD8.79(exc. GST)
In Stock
  • RS Stock No. 839-1528
  • Mfr. Part No. 885012205037
Subtotal (1 pack of 100 units)
SGD2.80(exc. GST)
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  • RS Stock No. 181-5354
Subtotal (1 pack of 100 units)
SGD14.40(exc. GST)
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  • RS Stock No. 144-6961
  • Mfr. Part No. EKMQ250ELL103MM40S
Subtotal (1 bag of 50 units)
SGD224.65(exc. GST)
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