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.

44330 Products showing for Capacitors

1 of 999+
In Stock
  • RS Stock No. 181-4628
Each (In a Pack of 2)
SGD5.865(exc. GST)
In Stock
  • RS Stock No. 725-9029
  • Mfr. Part No. 6.3ZLH820M8X11.5
Each (In a Pack of 10)
SGD0.665(exc. GST)
In Stock
  • RS Stock No. 520-0996P
  • Mfr. Part No. UVR1H101MPD
Each (Supplied in a Bag)
SGD0.174(exc. GST)
Currently unavailable
  • RS Stock No. 703-8144
  • Mfr. Part No. 50YXF22MEFCT15X11
Each (In a Pack of 50)
SGD0.139(exc. GST)
In Stock
  • RS Stock No. 839-6646
  • Mfr. Part No. 860020673014
Each (In a Pack of 25)
SGD0.253(exc. GST)
In Stock
  • RS Stock No. 711-0719
Each (In a Pack of 50)
SGD0.104(exc. GST)
In Stock
  • RS Stock No. 846-7183
  • Mfr. Part No. LLS2G101MELZ
Each (In a Pack of 2)
SGD2.525(exc. GST)
In Stock
  • RS Stock No. 725-9026
  • Mfr. Part No. 25ZLH330MEFC8X11.5
Each (In a Pack of 10)
SGD0.283(exc. GST)
Temporarily out of stock
  • RS Stock No. 919-0442
  • Mfr. Part No. ECEA1VKS220
Each (In a Bag of 200)
SGD0.141(exc. GST)
In Stock
  • RS Stock No. 749-7212
  • Mfr. Part No. 63YXJ47M6.3X11
Each (In a Pack of 25)
SGD0.18(exc. GST)
In Stock
  • RS Stock No. 840-4889
  • Mfr. Part No. 860020574009
Each (In a Pack of 25)
SGD0.326(exc. GST)
Last RS stock
  • RS Stock No. 255-0248
  • Mfr. Part No. B41456B8229M600
Each
SGD29.31(exc. GST)
In Stock
  • RS Stock No. 845-4666
  • Mfr. Part No. UVZ1C471MPD
Each (In a Pack of 25)
SGD0.204(exc. GST)
In Stock
  • RS Stock No. 706-0440
Each (In a Pack of 100)
SGD0.142(exc. GST)
In Stock
  • RS Stock No. 763-9481
  • Mfr. Part No. 63PK22MEFC5X11
Each (In a Pack of 25)
SGD0.183(exc. GST)
Currently unavailable
  • RS Stock No. 602-2618
  • Mfr. Part No. UFG1H4R7MDM
Each (In a Pack of 5)
SGD0.096(exc. GST)
In Stock
  • RS Stock No. 747-2023
  • Mfr. Part No. EEUEB1A101S
Each (In a Pack of 25)
SGD0.176(exc. GST)
In Stock
  • RS Stock No. 572-259
  • Mfr. Part No. EEUFC1V121
Each (In a Pack of 5)
SGD0.546(exc. GST)
In Stock
  • RS Stock No. 711-0738
Each (In a Pack of 25)
SGD0.096(exc. GST)
In Stock
  • RS Stock No. 224-4303
  • Mfr. Part No. 50YXF3.3M5X11
Each (In a Pack of 5)
SGD0.23(exc. GST)
Results per page