Wire-Wound Inductors: Inductors made by winding a conductive wire around a core, typically made of ferrite, iron powder, or air. They are widely used in electronic circuits for their high inductance values and low cost.

Toroidal Inductors: Inductors with a toroidal (doughnut-shaped) core, providing high inductance values with low electromagnetic radiation and high efficiency. They are commonly used in power supplies, audio equipment, and RF circuits.

Ferrite Beads: Small ferrite cores used to suppress high-frequency noise in electronic circuits by acting as a low-pass filter. They are commonly used in power supply lines, signal lines, and data cables.

Chip Inductors: Surface-mount inductors integrated into a chip package, offering compact size and high performance. They are widely used in portable electronic devices, RF circuits, and telecommunications equipment.

Power Inductors: Inductors designed to handle high currents and power levels, commonly used in power supplies, voltage regulators, and DC-DC converters.

RF Inductors: Inductors optimized for radio frequency (RF) circuits, providing high Q factor, low parasitic capacitance, and low loss characteristics. They are commonly used in RF filters, matching networks, and antenna circuits.

Coupled Inductors (Transformers): Inductors with multiple windings coupled together magnetically, used to transfer energy between circuits or to provide impedance matching. They are commonly used in power converters, transformers, and RF circuits.

Common Mode Chokes: Inductors with two or more windings wound on a common core, used to suppress common mode noise in signal and power lines. They are commonly used in EMI filters, power supplies, and communication interfaces.

Variable Inductors: Inductors with adjustable inductance values, often achieved by mechanically varying the number of turns or the magnetic core material. They are used in tunable RF circuits, oscillators, and impedance matching networks.

Balun Transformers: Transformers used to convert between balanced and unbalanced signals in RF and microwave circuits. They are commonly used in antennas, mixers, and modulators.

Audio Transformers: Transformers used in audio circuits for impedance matching, signal isolation, and voltage level conversion. They are commonly used in audio amplifiers, microphone preamplifiers, and audio signal processing equipment.

Pulse Transformers: Transformers optimized for transmitting pulse signals with minimal distortion and delay. They are commonly used in digital communication systems, pulse generators, and high-speed data transmission.

Isolation Transformers: Transformers used to isolate two circuits electrically while allowing signal or power transfer between them. They are commonly used in power supplies, instrumentation, and safety isolation circuits.

High Frequency Transformers: Transformers designed to operate at high frequencies, typically in the RF and microwave range. They are commonly used in RF amplifiers, RF modulators, and wireless communication systems.

Flyback Transformers: Transformers used in flyback converters to store and transfer energy between primary and secondary windings. They are commonly used in switch mode power supplies, CRT displays, and television sets.

Autotransformers: Transformers with a single winding tapped at different points, used for voltage regulation, impedance matching, and phase shifting. They are commonly used in voltage regulators, variable transformers, and power distribution systems.

Instrument Transformers: Transformers used in measurement and instrumentation applications to scale down high voltages or currents to levels suitable for measurement. They are commonly used in wattmeters, ammeters, and voltmeters.

RF Transformers: Transformers designed for operation in RF circuits, typically with broadband frequency response, low insertion loss, and high power handling capabilities. They are commonly used in RF amplifiers, filters, and impedance matching networks.

Planar Transformers: Transformers with windings arranged in a planar configuration, typically on a printed circuit board (PCB), offering compact size, low profile, and high power density. They are commonly used in power converters, motor drives, and high-frequency applications.

Current Transformers (CTs): Transformers used to measure alternating current (AC) in power systems, typically with a primary winding and a secondary winding connected to a current meter or monitoring device. They are commonly used in power distribution systems, energy meters, and protective relays.