Trimmer Capacitors

Trimmer capacitors are small variable capacitors operated by a screwdriver. Variable capacitors are those with a capacitance that may be repeatedly and intentionally changed electronically or mechanically. The distance between the plates or the amount of plate surface area that overlaps in mechanically controlled variable capacitors can be changed. Variable capacitors are primarily used in radio tuning circuits, so they are sometimes called "tuning capacitors." You can locate a wide range of passive components, including ceramic capacitors and film capacitors, using Octopart.