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.

High quality axial-leaded electrolytic capacitors. These 041, 042, 043 ASH series capacitors are produced by Vishay BC, formerly known as Philips / BC. These capacitors have been produced for many years and can be found in a wide variety of music equipment including vintage amps by Vox, Hiwatt and Marshall. Features
Applications
- Useful life: 5000 h to 15 000 h at 85 °C
- High rated voltage: up to 450 V
- Polarized aluminum electrolytic capacitors, non-solid electrolyte
- Axial leads, cylindrical aluminum case, insulated with a blue sleeve
Applications
- General purpose, industrial, power supply, audio-video
- Smoothing, filtering, buffering at high voltages
- Boards with restricted mounting height, vibration, and shock resistant
Starting at $3.79