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Inductors, Chokes, Coils

Inductors, Chokes, Coils

Inductors, Chokes, Coils, and Ferrite Beads

Inductors

Inductors are passive components that store energy in a magnetic field when current flows through them. Built from coiled wire, they are commonly used to smooth power-supply ripple, filter noise from signals, provide voltage gain, and limit current or voltage. Applications include power supplies, RF amplifiers, audio equipment, and medical devices.

Chokes

Chokes are specialized inductors designed to block high-frequency alternating current (AC) while allowing direct current (DC) or lower frequencies to pass. They help minimize electromagnetic interference (EMI), provide impedance matching, and filter noise in power and audio circuits.

Coils

Coils are assemblies of wire wound around a core, used to create stable magnetic fields for applications like transformers, motors, relays, and antennas. Coils can also serve as filters by blocking unwanted signal frequencies.

Ferrite Beads

Ferrite beads are compact passive components that suppress high-frequency noise on power and signal lines. Acting like resistive inductors at radio frequencies, they are ideal for EMI suppression in embedded systems, power supplies, and digital electronics.

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