TF1A04YY RH-12150 CHICAGO STANDARD TRANSFORMER CORP 105mm X 50mm X 75mm Inductor, Coil, Choke Bobbin

An inductor, also called a coil, choke, or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it. An inductor typically consists of an insulated wire wound into a coil. When the current flowing through the coil changes, the time-varying magnetic field induces an electromotive force (emf) (voltage) in the conductor.