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

44071 Products showing for Capacitors

1 of 999+
Last RS stock
TDK 12pF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±5% , Through Hole
  • RS Stock No. 194-0445
  • Mfr. Part No. FG28C0G1H120JNT00
Subtotal (1 pack of 10 units)
HK$9.60
In Stock
Panasonic 220μF Aluminium Electrolytic Capacitor 16V dc, Radial, Through Hole - EEUFC1C221
  • RS Stock No. 449-0974
  • Mfr. Part No. EEUFC1C221
Subtotal (1 pack of 5 units)
HK$15.20
Currently unavailable
Vishay 4700μF Aluminium Electrolytic Capacitor 450V dc, Screw Terminal - MAL250117472E3
  • RS Stock No. 223-6079
  • Mfr. Part No. MAL250117472E3
Subtotal (1 box of 12 units)
HK$7,802.196
In Stock
Rubycon 1800μF Aluminium Electrolytic Capacitor 10V dc, Radial, Through Hole - 10ZLJ1800M10X20
  • RS Stock No. 725-8934
  • Mfr. Part No. 10ZLJ1800M10X20
Subtotal (1 pack of 5 units)
HK$36.80
In Stock
Panasonic 560μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - EEUFM1H561
  • RS Stock No. 526-1727
  • Mfr. Part No. EEUFM1H561
Subtotal (1 pack of 5 units)
HK$53.50
In Stock
KEMET 100 nF Multilayer Ceramic Capacitor, 100 V V, 5 %, Surface
  • RS Stock No. 205-3265
  • Mfr. Part No. C0805C104J1RACTU
Subtotal (1 tape of 25 units)
HK$36.80
In Stock
KEMET 220nF Multilayer Ceramic Capacitor MLCC, 100V dc V, ±10% , SMD
  • RS Stock No. 802-9955
  • Mfr. Part No. C0805C224K1RACTU
Subtotal (1 pack of 25 units)
HK$28.00
In Stock
Nichicon 220μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - UHE1H221MPD
  • RS Stock No. 491-0327
  • Mfr. Part No. UHE1H221MPD
Subtotal (1 pack of 5 units)
HK$20.10
Last RS stock
Rubycon 47μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - 50YXF47M6.3X11
  • RS Stock No. 224-4353
  • Mfr. Part No. 50YXF47M6.3X11
Subtotal (1 pack of 5 units)
HK$15.90
In Stock
Panasonic 100μF Aluminium Electrolytic Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - EEUFR1H101
  • RS Stock No. 708-3894
  • Mfr. Part No. EEUFR1H101
Subtotal (1 pack of 10 units)
HK$20.90
In Stock
EPCOS 10000μF Aluminium Electrolytic Capacitor 63V dc, Snap-In - B41252A8109M060
  • RS Stock No. 771-4725
  • Mfr. Part No. B41252A8109M060
Subtotal (1 unit)
HK$58.10
In Stock
Panasonic 22μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - EEUFC1H220
  • RS Stock No. 107-6861
  • Mfr. Part No. EEUFC1H220
Subtotal (1 bag of 200 units)
HK$203.60
In Stock
KEMET 33nF MLCC, 630V dc V, ±5% , SMD
  • RS Stock No. 187-1488
  • Mfr. Part No. C1210C333JBGACTU
Subtotal (1 pack of 5 units)
HK$35.90
Last RS stock
Rubycon 22μF Aluminium Electrolytic Capacitor 63V dc, Radial, Through Hole - 63YXF22M6.3X11
  • RS Stock No. 191-7909
  • Mfr. Part No. 63YXF22M6.3X11
Subtotal (1 pack of 5 units)
HK$18.40
In Stock
Nichicon 1000μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - UPW1H102MHD
  • RS Stock No. 715-2886
  • Mfr. Part No. UPW1H102MHD
Subtotal (1 pack of 5 units)
HK$69.70
Temporarily out of stock
Nichicon 4700μF Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole - UVZ1V472MHD
  • RS Stock No. 845-4840P
  • Mfr. Part No. UVZ1V472MHD
Subtotal 2 units (supplied in a bag)
HK$34.70
In Stock
Panasonic 4700μF Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole - ECA1VHG472
  • RS Stock No. 727-0697
  • Mfr. Part No. ECA1VHG472
Subtotal (1 unit)
HK$19.40
In Stock
KEMET 27pF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±5% , SMD
  • RS Stock No. 147-409
  • Mfr. Part No. C0603C270J5GACTU
Subtotal (1 pack of 50 units)
HK$8.60
In Stock
RS PRO 2.2 μF Electrolytic Tantalum Electrolytic Capacitor 50 V, Through Hole, CB1H Series
  • RS Stock No. 181-4698
Subtotal (1 pack of 10 units)
HK$73.20
In Stock
TDK 2.2μF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±10% , SMD
  • RS Stock No. 183-5884
  • Mfr. Part No. CGA4J3X7R1H225K125AB
Subtotal (1 pack of 50 units)
HK$99.20
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