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.

47437 Products showing for Capacitors

1 / 999+
In Stock
  • RS Stock No. 135-6536
  • Mfr. Part No. 06031A151FAT2A
Each (In a Bag of 25)
MYR2.612
In Stock
  • RS Stock No. 124-3228
  • Mfr. Part No. 06035C223KAT2A
Each (On a Reel of 4000)
MYR0.045
In Stock
  • RS Stock No. 228-6767
  • Mfr. Part No. ECA1VM101
Each (In a Pack of 5)
MYR0.70
In Stock
  • RS Stock No. 727-0559
  • Mfr. Part No. ECA1EM102
Each (In a Pack of 10)
MYR1.53
In Stock
  • RS Stock No. 714-8566
  • Mfr. Part No. LGL2G271MELA30
Each
MYR44.90
In Stock
  • RS Stock No. 711-0848
Each (In a Pack of 25)
MYR0.736
In Stock
  • RS Stock No. 176-3779
  • Mfr. Part No. ECEA1CKA101
Each (In a Pack of 25)
MYR0.402
In Stock
  • RS Stock No. 723-5076P
  • Mfr. Part No. GCM31CR71C475KA37L
Each (Supplied on a Reel)
MYR0.566
Temporarily out of stock
  • RS Stock No. 815-1279
  • Mfr. Part No. GCM188L81H104KA57D
Each (In a Pack of 100)
MYR0.18
In Stock
  • RS Stock No. 240-3939
  • Mfr. Part No. EEUFR1V471B
Each (In a Pack of 5)
MYR2.366
In Stock
  • RS Stock No. 133-5719
  • Mfr. Part No. RDER71H104K0M1H03A
Each (In a Pack of 25)
MYR1.169
In Stock
  • RS Stock No. 134-9838
  • Mfr. Part No. TAP226K016SCS
Each (In a Bag of 10)
MYR3.683
In Stock
  • RS Stock No. 210-617
  • Mfr. Part No. PME271Y547MR30
Each (In a Pack of 5)
MYR8.608
In Stock
  • RS Stock No. 134-9830
  • Mfr. Part No. TAP475K035SCS
Each (In a Bag of 10)
MYR2.866
Temporarily out of stock
  • RS Stock No. 107-1075
  • Mfr. Part No. EEUFK1A821L
Each (In a Bag of 200)
MYR1.967
In Stock
  • RS Stock No. 145-8570
  • Mfr. Part No. EEUFS1A122L
Each (In a Pack of 10)
MYR1.52
In Stock
  • RS Stock No. 732-8295
  • Mfr. Part No. EEUTP1V102
Each (In a Pack of 2)
MYR12.865
In Stock
  • RS Stock No. 242-1265
  • Mfr. Part No. 885342209009
Each (In a Pack of 10)
MYR2.578
In Stock
  • RS Stock No. 135-3590
  • Mfr. Part No. 4.16.10.25.06
Each
MYR55.30
In Stock
  • RS Stock No. 194-0550
  • Mfr. Part No. FG28X5R1H105KRT00
Each (In a Pack of 10)
MYR0.511
Results per page