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.
Aluminium Capacitors
Aluminium Capacitors
Array Capacitors
Array Capacitors
Capacitors Accessories
Capacitors Accessories
Feedthrough Capacitors
Feedthrough Capacitors
Film Capacitors
Film Capacitors
MLCCs - Multilayer Ceramic Capacitors
MLCCs - Multilayer Ceramic Capacitors
Mica Capacitors
Mica Capacitors
Multilayer Organic Capacitors
Multilayer Organic Capacitors
Niobium Oxide Capacitors
Niobium Oxide Capacitors
Polyester Film Capacitors
Polyester Film Capacitors
Polymer Capacitors
Polymer Capacitors
Power Factor Correction Capacitors
Power Factor Correction Capacitors
Single Layer Ceramic Capacitors
Single Layer Ceramic Capacitors
Supercapacitors
Supercapacitors
Tantalum Capacitors
Tantalum Capacitors
Variable Trimmer Capacitors
Variable Trimmer Capacitors

47437 Products showing for Capacitors

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Unavailable
Tantalum Capacitor SMD,6.3V,100uF
  • RS Stock No. 375-004P
  • Mfr. Part No. TEESVB30J107M
Each (Supplied on a Reel)
MYR5.55
In Stock
KEMET PME271 Paper Capacitor, 275V ac, ±20%, 100nF, Through Hole
  • RS Stock No. 210-500P
  • Mfr. Part No. PME271M610MR30
Each (Supplied in a Bag)
MYR9.206
In Stock
KEMET PME271 Paper Capacitor, 275V ac, ±20%, 100nF, Through Hole
  • RS Stock No. 311-1030P
  • Mfr. Part No. PME271MD6100MR30
Each (Supplied in a Bag)
MYR9.966
In Stock
EPCOS B32924C Polypropylene Film Capacitor, 305V ac, ±20%, 3.3μF, Through Hole
  • RS Stock No. 497-4157P
  • Mfr. Part No. B32924C3335M000
Each (Supplied in a Box)
MYR9.92
In Stock
KEMET 560μF Surface Mount Polymer Capacitor, 25V dc
  • RS Stock No. 209-5440P
  • Mfr. Part No. A768MS567M1ELAV017
Each (Supplied on a Reel)
MYR9.11
Currently unavailable
EPCOS B32023 Polypropylene Film Capacitor, 300V ac, ±20%, 68nF, Through Hole
  • RS Stock No. 466-469P
  • Mfr. Part No. B32023A3683M000
Each (Supplied in a Bag)
MYR5.123
In Stock
Murata 22μF MLCC, 25V dc V, SMD
  • RS Stock No. 247-8112P
  • Mfr. Part No. GRM21BR61E226ME44L
Each (Supplied on a Reel)
MYR1.182
In Stock
Okaya Electric Industries LE-MX Polypropylene Capacitor PP, 310V ac, ±10%, 1.5μF, Through Hole
  • RS Stock No. 189-6836
  • Mfr. Part No. LE155-MX
Each (In a Pack of 5)
MYR9.936
In Stock
EPCOS B32924C Polypropylene Film Capacitor, 305V ac, ±20%, 3.3μF, Through Hole
  • RS Stock No. 497-4157
  • Mfr. Part No. B32924C3335M000
Each
MYR9.92
In Stock
Murata NFM41C, Power Line Filter100V dc, Surface Mount
  • RS Stock No. 150-657
  • Mfr. Part No. NFM41CC102R2A3L
Each (In a Pack of 10)
MYR1.266
Temporarily out of stock
Rubycon 680μF Aluminium Electrolytic Capacitor 100V dc, Radial, Through Hole - 100ZLJ680M16X40
  • RS Stock No. 749-7329
  • Mfr. Part No. 100ZLJ680M16X40
Each
MYR14.63
In Stock
RS PRO 47μF Aluminium Electrolytic Capacitor 250V dc, Axial, Through Hole
  • RS Stock No. 707-6528P
Each (Supplied in a Bag)
MYR22.39
In Stock
Nichicon 1000μF Electrolytic Capacitor 25V dc, Through Hole - UVK1E102MPD
  • RS Stock No. 475-7895
  • Mfr. Part No. UVK1E102MPD
Each (In a Pack of 5)
MYR2.452
In Stock
WIMA MKS4 Polyester Film Capacitor, 200 V ac, 400 V dc, ±10%, 1μF, Through Hole
  • RS Stock No. 116-672
  • Mfr. Part No. MKS4G041005G00KSSD
Each (In a Pack of 5)
MYR7.03
In Stock
EPCOS B32022 Polypropylene Film Capacitor, 300V ac, ±20%, 22nF, Through Hole
  • RS Stock No. 466-497P
  • Mfr. Part No. B32022A3223M000
Each (Supplied in a Bag)
MYR3.619
In Stock
KEMET 22pF Multilayer Ceramic Capacitor MLCC, 200V dc V, ±5% , Through Hole
  • RS Stock No. 538-1461P
  • Mfr. Part No. C322C220J2G5TA
Each (Supplied in a Bag)
MYR1.206
In Stock
TDK 22μF Multilayer Ceramic Capacitor MLCC, 25V dc V, ±20% , SMD
  • RS Stock No. 915-9303P
  • Mfr. Part No. C2012X5R1E226M125AC
Each (Supplied on a Reel)
MYR5.692
Temporarily out of stock
Nichicon 3900μF Aluminium Electrolytic Capacitor 400V dc, Screw Terminal - LQR2G392MSEH
  • RS Stock No. 165-3852
  • Mfr. Part No. LQR2G392MSEH
Each (In a Bag of 5)
MYR347.802
Last RS stock
Rubycon 47μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - 25ZL47MEFCT15X11
  • RS Stock No. 703-7276
  • Mfr. Part No. 25ZL47MEFCT15X11
Each (In a Pack of 25)
MYR0.676
In Stock
Nichicon 100μF Aluminium Electrolytic Capacitor 100V dc, Radial, Through Hole - UBT2A101MHD8
  • RS Stock No. 762-1821P
  • Mfr. Part No. UBT2A101MHD8
Each (Supplied in a Bag)
MYR6.48
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