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

45004 Products showing for Capacitors

1 of 999+
Being discontinued
Rubycon 1000 μF Capacitor 10V dc, Through Hole - 10ZLH1000MEFC8X16
  • RS Stock No. 703-7475
  • Mfr. Part No. 10ZLH1000MEFC8X16
Subtotal (1 pack of 10 units)
HK$18.40
In Stock
EPCOS B32653 Film Capacitor 220 nF 250V ac 1 kV dc, Through Hole 2
  • RS Stock No. 190-8551
  • Mfr. Part No. B32653A0224K000
Subtotal (1 unit)
HK$13.20
In Stock
KEMET 100 nF Multilayer Ceramic Capacitor, 100V dc, 5 %, Surface Mount
  • RS Stock No. 205-3265
  • Mfr. Part No. C0805C104J1RACTU
Subtotal (1 tape of 25 units)
HK$37.90
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$80.50
In Stock
Panasonic 220 μF Capacitor 16V dc, Through Hole - EEUFC1C221 Radial Lead
  • RS Stock No. 449-0974
  • Mfr. Part No. EEUFC1C221
Subtotal (1 pack of 5 units)
HK$17.00
In Stock
Murata 22 μF Multilayer Ceramic Capacitor, 6.3V dc, 20 %, Surface Mount
  • RS Stock No. 247-8134
  • Mfr. Part No. GRM21BZ70J226ME44L
Subtotal (1 tape of 10 units)
HK$14.50
Temporarily out of stock
Rubycon 1000 μF Capacitor 25V dc, Through Hole
  • RS Stock No. 172-7573
  • Mfr. Part No. 25ZLH1000MEFC10X23
Subtotal (1 box of 1000 units)
HK$2,309.00
In Stock
KEMET 100 nF Multilayer Ceramic Capacitor, 50V dc, ±20 %, Surface Mount
  • RS Stock No. 802-9920
  • Mfr. Part No. C0805C104M5RACTU
Subtotal (1 reel of 500 units)
HK$72.00
In Stock
Panasonic 220 μF Capacitor 16V dc, Radial, Through Hole - EEUHD1C221 Radial Lead
  • RS Stock No. 166-7010
  • Mfr. Part No. EEUHD1C221
Subtotal (1 bag of 200 units)
HK$602.20
In Stock
KEMET 47 nF Multilayer Ceramic Capacitor, 25V dc, ±5 %, Surface Mount
  • RS Stock No. 146-4354
  • Mfr. Part No. C0805C473J3GACAUTO
Subtotal (1 bag of 10 units)
HK$24.60
In Stock
TDK Single Layer Ceramic Capacitor 0.01 μF 1kV dc, CK45, Through Hole 105 °C Max Op. Temp.
  • RS Stock No. 253-2835
  • Mfr. Part No. CK45-E3AD103ZYVNA
Subtotal (1 tape of 20 units)
HK$42.40
In Stock
KEMET 1 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface Mount
  • RS Stock No. 648-0783
  • Mfr. Part No. C1206C102K5RACTU
Subtotal (1 pack of 10 units)
HK$4.60
In Stock
KEMET C4AF Film Capacitor, 10 %, 3.3 μF 310 V dc 310V ac, Through Hole
  • RS Stock No. 258-4236
  • Mfr. Part No. C4AF9BU4330F11K
Subtotal (1 box of 72 units)
HK$1,150.776
In Stock
Panasonic 10 μF Aluminium Electrolytic Capacitor 50V dc, Through Hole - EEUFC1H100L Radial Lead
  • RS Stock No. 571-256
  • Mfr. Part No. EEUFC1H100L
Subtotal (1 pack of 5 units)
HK$7.00
In Stock
Murata Single Layer Ceramic Capacitor 22 pF 1.5 kV dc, 500V ac ±10 % SL (JIS) Dielectric, DE1, Through Hole 125 °C Max
  • RS Stock No. 172-7780
  • Mfr. Part No. DE11XRA220KA4BQ01F
Subtotal (1 pack of 20 units)
HK$35.00
In Stock
Wurth Elektronik 15 F Supercapacitor -10 to 30 % Tolerance, WCAP-STSC 2.7V dc, Through Hole
  • RS Stock No. 185-5712
  • Mfr. Part No. 850617021005
Subtotal (1 unit)
HK$65.70
In Stock
CHEMI-CON 150 μF Capacitor 400V dc, Snap-in - EKMQ401VSN151MQ25S
  • RS Stock No. 841-2694
  • Mfr. Part No. EKMQ401VSN151MQ25S
Subtotal (1 unit)
HK$30.00
In Stock
Nichicon 2.2 μF Capacitor 50V dc, Surface Mount Solder - UUA1H2R2MCL1GS
  • RS Stock No. 490-8087
  • Mfr. Part No. UUA1H2R2MCL1GS
Subtotal (1 pack of 10 units)
HK$16.10
In Stock
EPCOS B32332 Film Capacitor 25 μF 450V ac 450 V dc, Stud Mount 2
  • RS Stock No. 769-4289
  • Mfr. Part No. B32332I6256J080
Subtotal (1 unit)
HK$99.20
In Stock
Panasonic 3.3 μF Capacitor 50V dc, Radial, Through Hole - EEUHD1H3R3 Radial Lead
  • RS Stock No. 744-2123
  • Mfr. Part No. EEUHD1H3R3
Subtotal (1 pack of 10 units)
HK$26.40
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