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
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

44865 Products showing for Capacitors

1 of 999+
Murata 10μF Multilayer Ceramic Capacitor MLCC, 25V dc V, ±10% , SMD
  • RS Stock No. 276-3767
  • Mfr. Part No. GRM21BZ71E106KE15L
Each (On a Tape of 10)
HK$1.32(exc. GST)
Nichicon 470μF Aluminium Electrolytic Capacitor 100V dc, Radial, Through Hole - UVZ2A471MHD
  • RS Stock No. 845-4903
  • Mfr. Part No. UVZ2A471MHD
Each (In a Pack of 5)
HK$13.36(exc. GST)
KEMET 47nF Multilayer Ceramic Capacitor MLCC, 100V dc V, ±10% , SMD
  • RS Stock No. 147-998
  • Mfr. Part No. C0805C473K1RACTU
Each (In a Pack of 25)
HK$0.408(exc. GST)
Murata 4.7μF Multilayer Ceramic Capacitor MLCC, 50V dc V, SMD
  • RS Stock No. 260-8825
  • Mfr. Part No. GRM21BZ71H475KE15K
Each (On a Tape of 10)
HK$2.35(exc. GST)
Vishay 22μF Tantalum Capacitor 35V dc
  • RS Stock No. 250-9030
  • Mfr. Part No. 150D226X9035R2BE3
Each
HK$76.00(exc. GST)
Panasonic 1500μF Aluminium Electrolytic Capacitor 6.3V dc, Radial, Through Hole - EEUFK0J152L
  • RS Stock No. 571-098
  • Mfr. Part No. EEUFK0J152L
Each (In a Pack of 5)
HK$5.72(exc. GST)
EPCOS 10000μF Aluminium Electrolytic Capacitor 63V dc, Snap-In - B41231A8109M060
  • RS Stock No. 171-3190
  • Mfr. Part No. B41231A8109M060
Each (In a Box of 80)
HK$36.991(exc. GST)
Panasonic 100μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - ECA1EM101
  • RS Stock No. 727-0546
  • Mfr. Part No. ECA1EM101
Each (In a Pack of 50)
HK$0.75(exc. GST)
Nichicon 10000μF Aluminium Electrolytic Capacitor 50V dc, Snap-In - LLS1H103MELB
  • RS Stock No. 846-7105
  • Mfr. Part No. LLS1H103MELB
Each
HK$45.80(exc. GST)
TDK 10nF Multilayer Ceramic Capacitor MLCC, 100V dc V, Push In, Solder
  • RS Stock No. 242-7556
  • Mfr. Part No. FA28C0G2A103JRU06
Each (In a Pack of 10)
HK$1.42(exc. GST)
TDK 680pF Multilayer Ceramic Capacitor MLCC, 100V dc V, ±5% , Through Hole
  • RS Stock No. 194-0595
  • Mfr. Part No. FG28C0G2A681JNT00
Each (In a Pack of 10)
HK$1.64(exc. GST)
KEMET 47nF Multilayer Ceramic Capacitor MLCC, 25V dc V, ±5% , SMD
  • RS Stock No. 146-4354
  • Mfr. Part No. C0805C473J3GACAUTO
Each (In a Bag of 10)
HK$2.39(exc. GST)
TDK 2.2μF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±10% , SMD
  • RS Stock No. 183-5884
  • Mfr. Part No. CGA4J3X7R1H225K125AB
Each (In a Pack of 50)
HK$1.984(exc. GST)
Murata 100nF Multilayer Ceramic Capacitor MLCC, 10V dc V, ±10% , SMD
  • RS Stock No. 790-2742
  • Mfr. Part No. GRM033R61A104KE15D
Each (On a Reel of 1000)
HK$0.031(exc. GST)
KEMET 33nF MLCC, 630V dc V, ±5% , SMD
  • RS Stock No. 187-1488
  • Mfr. Part No. C1210C333JBGACTU
Each (In a Pack of 5)
HK$6.52(exc. GST)
EPCOS 10000μF Aluminium Electrolytic Capacitor 63V dc, Snap-In - B41231A8109M060
  • RS Stock No. 171-3249
  • Mfr. Part No. B41231A8109M060
Each
HK$47.10(exc. GST)
Panasonic ECQE Polyester Film Capacitor, 630V dc, ±10%, 2.2μF, Through Hole
  • RS Stock No. 476-4376
  • Mfr. Part No. ECQE6225KF
Each (In a Pack of 5)
HK$23.10(exc. GST)
Ducati Energia 4.16.10 Polypropylene Film Capacitor, 400 → 500V ac, ±5%, 30μF, Stud Mount
  • RS Stock No. 388-7787
  • Mfr. Part No. 4.16.10.70.14
Each
HK$119.70(exc. GST)
Nichicon 1000μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - UPW1E102MHD
  • RS Stock No. 715-2678P
  • Mfr. Part No. UPW1E102MHD
Each (Supplied in a Bag)
HK$6.64(exc. GST)
KEMET 47pF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±5% , Through Hole
  • RS Stock No. 146-3563
  • Mfr. Part No. C315C470J5G5TA
Each (In a Pack of 20)
HK$1.34(exc. GST)
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