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About Inductors, Coils, and Chokes
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Inductors, chokes, and coils are passive devices.  Inductors store energy in the form of a magnetic field. In their simplest form, inductors consist of a wire loop or coil. The inductance is directly proportional to the number of turns in the coil. Inductance also depends on the radius of the coil and on the type of material around which the coil is wound.  For a given coil radius and number of turns, air cores result in the least inductance. Dielectric materials such as wood, glass, and plastic are essentially the same as air for the purposes of inductor winding. Ferromagnetic substances such as iron, laminated iron, and powdered iron increase the inductance obtainable with a coil having a given number of turns. In some cases, this increase is on the order of thousands of times. The shape of the core is also significant. Toroidal (donut-shaped) cores provide more inductance, for a given core material and number of turns, than solenoidal (rod-shaped) cores. Toroids look exactly like doughnuts and come in various diameters, thickness, permeability and types depending upon the frequency range of interest. They have a high inductance for the physical space occupied.


Products & Services Related to Inductors, Coils, and Chokes
Chip Inductors
Chip inductors are manufactured using semiconductor material.
Ferrite Beads
Ferrite beads are used to suppress unwanted signals that can interfere with electrical devices such as DC supplies, transmission lines and cables. They provide attenuation of selected frequency bands.
See more product announcements for Inductors, Coils, and Chokes
Custom Inductors, Coils, and Chokes

Custom Inductors, Coils, and Chokes
The Inter-Technical Group, Inc. (ITG)


SC2511 SMD High Current Power Inductor

SC2511 SMD High Current Power Inductor
The Inter-Technical Group, Inc. (ITG)



Related Keywords
Inductors, Coils, and Chokes
induction coil
variable inductor
power inductor
common mode choke
condenser coil
ferrite choke
choke coil
rf choke
ferrite coil



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