Inductors

Inductors, typically coiled copper circuits, use the magnetic effects of electron movement to influence electrical signal speed. No special materials are used in their construction. These copper spirals, similar to PCB traces, form current loops that generate magnetic fields for energy storage and control. Inductance, measured in henry, arises from the magnetic field around the current-carrying conductor, creating a counter electromotive force that resists voltage changes, known as inductive reactance.

Types of Inductors

Various types of Inductors, we can source.

Iron Core Inductor

Iron core inductor consists of a ferrite core and copper wire windings. Iron core inductors have the advantages of good high-frequency characteristics, high Q value, small size, light weight, and low cost. They are widely used in various electronic equipment, such as communications, computers, home appliances and other fields.

Toroidal inductor

Toroidal inductor, also called self-inductance component. Its structure is one or more coils wound around a toroidal magnetic core. Toroidal inductors feature highly saturable materials, wide inductance range, high current capability, and low DC resistance1. Toroidal inductors are widely used in circuits, such as transformers, coupling circuits, etc.

Bobbin inductors

Bobbin inductor is made of insulated wires wound with a certain number of turns on a bobbin. The inductance of a bobbin inductor is related to the shape, size, winding method, number of turns, and type of intermediate magnetically conductive material of the coil winding.

Power inductors

Power inductor is used to provide inductance in a circuit to suppress high-frequency noise, filter, regulate current, etc. Power inductors mainly play the functions of choke, filtering and oscillation in the circuit. According to the current changes, power inductors can be divided into high-frequency choke coils and low-frequency choke coils.

Shielded Surface Mount Inductors

Shielded Surface Mount Inductor is commonly used on surface mount technology (SMT) on circuit boards. The main feature of this inductor is its shielding effect, which can reduce electromagnetic interference (EMI) and electromagnetic radiation (EMR), thereby improving the stability and reliability of the circuit. Shielded surface mount inductors usually consist of one or more coils that are encased in a metal shield to prevent electromagnetic fields from affecting the surrounding circuitry.

Molded inductors

Molded inductors are made by pressing components such as magnetic cores and coils in a mold. Molded inductors are widely used in electronic equipment due to their small size, light weight, solid structure, and high reliability. They are often used in circuits such as filtering, noise suppression, impedance matching, and signal transmission to improve circuit performance and stability.

Air core inductor

Air core inductors have the advantages of low DC impedance, large allowable current, high Q value, small size, light weight, low cost, easy manufacturing, and easy integration. They are suitable for circuits that require high frequency and high Q such as mobile communication equipment.

Coupled inductors

Coupled inductors are inductive components, also called self-inductance components. They are two or more coils, and the magnetic flux generated by each of these coils intersects with the other coil.

Laminated core inductors

The core of a laminated core inductor is made up of multiple layers of sheets, usually using insulating material as an isolation layer to prevent short circuits between layers. Multilayer core inductors have the characteristics of high inductance value, low DC resistance, good temperature stability and high saturation current capability.

Chokes inductors

Chokes inductor is very simple, but it is specially designed to block (choke) high-frequency signals. It consists of a coil of insulated wire wound on a magnetic core. The main difference between chokes and other inductors is that they do not require high Q factor construction techniques, which aim to reduce the resistance in inductors found in tuned circuits.

Variable inductors

Variable inductors, also known as adjustable inductors, are electrical components that allow the inductance value to be varied or adjusted. Inductance is a measure of the opposition of a circuit element to changes in electric current passing through it, creating a back electromotive force (EMF) that opposes the change in current.

Ferrite inductors

Ferrite inductor is an inductor that uses ferrite material as its magnetic core. It has high initial magnetic permeability, excellent stress resistance and excellent temperature characteristics, and do not cause environmental pollution. In addition, ferrite inductors enable the tight tolerances and high reliability of resin molded inductors.

Top Inductor Manufacturers

Popular used Inductor manufacturers, ranking in no particular order. 

distributors

Worldwide first-classs distributors, ranking in no particular order. 

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