Capacitors

Capacitors are in stock with same-day shipping at Mouser Electronics from industry leading manufacturers. Mouser is an authorized distributor for many capacitor manufacturers including KEMET, KYOCERA AVX, Murata, Nichicon, Panasonic, Samsung, TDK, Vishay and many more.  Mouser stocks many types of capacitors including Ceramic, MLCC, Tantalum, Aluminum Electrolytic, Film, Polymer, and more. We also offer capacitor kits and capacitor hardware.

A capacitor is an electronic component used to store energy. Capacitors consist of 2 metal plates that are separated by a dielectric (non-conductive electrical insulator). Some of the most common dielectrics used are Electrolytic, Ceramic, & Film. The different plate and dielectric materials allow for a variety of capacitor types that can be specialized for specific functions and uses. Capacitors are measured in Farads as well as subdivisions of Farads such as uF(microfarad), nF (nanofarad), & pF (picofarad) and capacitors that are rated at 1 Farad or greater are typically referred to as Supercapacitors.

Applications: Capacitors are commonly used in power supplies, signal processing circuits, consumer electronics, automotive systems, industrial equipment, and communication devices for energy storage, filtering, and voltage regulation.

Selection requirements: Choosing a capacitor requires evaluating capacitance value, voltage rating, tolerance, dielectric type, ESR (equivalent series resistance), and operating temperature to ensure proper performance in the intended application.

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Please view our selection of over 1 million capacitors below. View our Newest Capacitors page.