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Capacitors

Capacitors are passive devices that are used in almost all electrical circuits for rectification, coupling and tuning. Also known as condensers, a capacitor is simply two electrical conductors separated by an insulating layer called a dielectric.  The conductors are usually thin layers of aluminum foil, while the dielectric can be made up of many materials including paper, mylar, polypropylene, ceramic, mica, and even air. Electrolytic capacitors have a dielectric of aluminum oxide which is formed through the application of voltage after the capacitor is assembled. 

Characteristics of different capacitors are determined by not only the material used for the conductors and dielectric, but also by the thickness and physical spacing of the components. 

All capacitors have a voltage rating that should not be exceeded. Exceeding the voltage rating of a capacitor can cause it to fail. As the voltage rating increases, the dielectric must be thicker, making high-voltage capacitors larger per capacitance than those rated for lower voltages. 

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C-ET100-100-FTCapacitor - F&T, 100V, 100µF, Axial Lead
0.41" dia. x 1.21" long. Operating temperature range -40°C to 105°C.
Axial lead electrolytic. Made in Germany.
Founded in 1948 by Heinz Fischer and Alfred Tausche, F&T Capacitors has over 60 years of experience in producing some of the finest capacitors available today. F&T Caps are known for their great tone and reliability.
$2.40
$2.16
You save: 10%
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C-ET100-100-ILCapacitor - Illinois, 100V, 100µF, Axial Lead Electrolytic

Illinois Capacitor Inc. high quality low leakage axial lead electrolytic capacitor



  • 100uF/100V
  • Rated for 85° C operation
  • Tolerance: -20%, +50%
  • Measures .40" diameter X 1.20" length

$1.30
$1.17
You save: 10%
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C-MCS-100Capacitor - MusiCap, 100V, Film & Foil Polypropylene

Critical loudspeaker crossovers deserve to have a transparent product specific to the application. Speaker MusiCaps, with their thicker leads, are a revelation in well-designed crossover networks. While a fully MusiCap-ed crossover is supreme, just installing MusiCaps in the tweeter circuit will reveal much additional detail and nuance. Many prominent high-end loudspeaker manufacturers have been using MusiCaps in their top models for years.


$22.80
Starting at $21.65
You save: 5%
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C-D-100VCapacitor - 100V, Ceramic Disc, ± 10%
± 10% tolerance.
$0.20
Starting at $0.18
You save: 10%
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C-PEICapacitor - 100V, Polyester Film Inductive (Package of 5)
Polyester film dielectric, aluminum foil electrode, copperply leads and epoxy resin coating in inductive type.
  • Small size, light weight and low cost
  • Dissipation factor is small because the leads are directly welded to electrodes
  • Epoxy resin vacuum-dipped enhances the mechanical strength, humidity resistance
  • 100 volt rating
  • Operating temperature range: -40°C to +85°C.
  • Package of 5
$0.45
Starting at $0.41
You save: 9%
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C-FS-1000Capacitor - Solen, 1000V, "Fast", Metalized Polypropylene
Made of the highest quality aluminum metalized polypropylene film available.Made in France.
$3.95
$3.56
You save: 10%
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C-MCCD01-1000Capacitor - MusiCap, .01µF, 1000V, Polypropylene, Coupling

MusiCaps are constructed using separate layers of premium foil and polypropylene films, rather than the vapor deposited, metallized film used by most other manufacturers. Film-plus-foil construction requires more costly materials and result in MusiCaps being approximately 100% larger than typical metallized-film capacitors, yet the benefits are immediately discernible. MusiCaps provide a dramatic improvement in clarity, focus and dynamics when used in critical new designs, as an upgrade to existing tube or solid-state components, or in musical instruments.


$13.30
$9.25
You save: 30%
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S-H120Insulator - 4 Section, for FP Cap
Phenolic insulator for mounting 4 section (1-3/8" diameter) FP type can capacitors.
$1.95
$1.76
You save: 10%
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S-H120MMounting Plate - Metal, for 1.375" Can Capacitor
Metal plate for mounting 4 section (1-3/8" diameter) FP type can capacitors.
$1.95
$1.76
You save: 10%
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S-H121Insulator - 3 Section, for FP Cap, 1.5" Mounting Centers
Phenolic insulator for mounting FP type can capacitors.
$1.50
$1.35
You save: 10%
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