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

46468 Products showing for Capacitors

1 of 999+
In Stock
Nichicon 120 μF Capacitor 450V dc, Snap-in - LGW2W121MELZ35
  • RS Stock No. 846-7057
  • Mfr. Part No. LGW2W121MELZ35
Subtotal (1 unit)
HK$40.40
HK$40.40/unit
In Stock
Panasonic ECWF(A) Film Capacitor, ±5 %, 100 nF 250 V dc, Through Hole
  • RS Stock No. 726-9972P
  • Mfr. Part No. ECWF2104JAQ
Subtotal 10 units (supplied in a bag)
HK$26.90
HK$2.69/unit
In Stock
Yageo 10 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 198-5325
  • Mfr. Part No. AC0603KRX7R9BB103
Subtotal (1 tape of 250 units)
HK$51.25
HK$0.205/unit
Last RS stock
Rubycon 2.2 μF Capacitor 400V dc, Radial, Through Hole - 400LLE2,2MEFC8X11.5 Radial Lead
  • RS Stock No. 767-2813
  • Mfr. Part No. 400LLE2,2MEFC8X11.5
Subtotal (1 pack of 10 units)
HK$31.00
HK$3.10/unit
Last RS stock
Taiyo Yuden 1 μF Multilayer Ceramic Capacitor, 50V, ±10 %, Surface
  • RS Stock No. 172-1588
  • Mfr. Part No. UMK316B7105KL-T
Subtotal (1 pack of 50 units)
HK$43.50
HK$0.87/unit
In Stock
TDK B32652 Film Capacitor 150 nF 400V ac 400 V dc, Through Hole 2
  • RS Stock No. 896-1616P
  • Mfr. Part No. B32652A4154J000
Subtotal 10 units (supplied in a box)
HK$42.00
HK$4.20/unit
In Stock
TDK B32922C Polypropylene Film Capacitor 47 nF 305V ac 305 V dc, Through Hole 2
  • RS Stock No. 241-6649P
  • Mfr. Part No. B32922C3473M000
Subtotal 10 units (supplied on a continuous strip)
HK$36.10
HK$3.61/unit
In Stock
RS PRO 2.2 μF Electrolytic Tantalum Electrolytic Capacitor 50V dc, Through Hole, CB1H Series
  • RS Stock No. 181-4698
Subtotal (1 pack of 10 units)
HK$120.00
HK$12.00/unit
Temporarily out of stock
Murata 22 μF Multilayer Ceramic Capacitor, 10V dc, ±20 %, Surface
  • RS Stock No. 276-3747
  • Mfr. Part No. GRM158R61A226ME15D
Subtotal (1 tape of 10 units)
HK$14.70
HK$1.47/unit
In Stock
Panasonic 33 μF Capacitor 350V dc, Radial - EEUEE2V330 Radial Lead
  • RS Stock No. 699-7509
  • Mfr. Part No. EEUEE2V330
Subtotal (1 pack of 5 units)
HK$61.50
HK$12.30/unit
In Stock
Samsung Electro-Mechanics 10 μF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 766-1214P
  • Mfr. Part No. CL32B106KBJNNNE
Subtotal 10 units (supplied on a continuous strip)
HK$33.10
HK$3.31/unit
Last RS stock
Yageo 1 nF Multilayer Ceramic Capacitor, 1kV dc, ±5 %, Surface
  • RS Stock No. 199-1930
  • Mfr. Part No. CC1206JKNPOCBN102
Subtotal (1 tape of 25 units)
HK$48.40
HK$48.40/tape
In Stock
Panasonic 220 μF Capacitor 16V dc, Radial - EEUFC1C221 Radial Lead
  • RS Stock No. 449-0974
  • Mfr. Part No. EEUFC1C221
Subtotal (1 pack of 5 units)
HK$17.00
HK$3.40/unit
In Stock
Panasonic 4700 μF Capacitor 16V dc, Through Hole Radial Lead
  • RS Stock No. 315-0518P
  • Mfr. Part No. EEUFC1C472
Subtotal 5 units (supplied in a bag)
HK$89.50
HK$17.90/unit
In Stock
KEMET PHE450 Film Capacitor, ±5 %, 470 nF 400 V dc 180V ac, Through Hole
  • RS Stock No. 544-1311
  • Mfr. Part No. PHE450KF6470JR06L2
Subtotal (1 pack of 5 units)
HK$141.10
HK$28.22/unit
In Stock
Nichicon 220 μF Capacitor 450V dc, Snap-in
  • RS Stock No. 846-7054P
  • Mfr. Part No. LGW2W221MELB35
Subtotal 1 unit (supplied in a box)
HK$61.40
HK$61.40/unit
In Stock
Nichicon 100 μF Capacitor 450V dc, Snap-in - LGU2W101MELZ
  • RS Stock No. 844-2869
  • Mfr. Part No. LGU2W101MELZ
Subtotal (1 unit)
HK$36.70
HK$36.70/unit
In Stock
KEMET PHE450 Film Capacitor, ±5 %, 220 nF 400 V dc 180V ac, Through Hole
  • RS Stock No. 544-1305
  • Mfr. Part No. PHE450KD6220JR06L2
Subtotal (1 pack of 5 units)
HK$97.90
HK$19.58/unit
Temporarily out of stock
KEMET PHE426 Film Capacitor, ±5 %, 22 nF 400 V dc 160V ac, Through Hole
  • RS Stock No. 414-7822
  • Mfr. Part No. PHE426KA5220JR05
Subtotal (1 pack of 10 units)
HK$23.00
HK$2.30/unit
In Stock
Vishay MKP 339 Film Capacitor X2, ±20 %, 1 nF 630 V dc 310V ac, Through Hole
  • RS Stock No. 485-6605P
  • Mfr. Part No. BFC233920102
Subtotal 10 units (supplied in a bag)
HK$64.20
HK$6.42/unit
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