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| Top > Technical-notes > Allowable coil current |
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| Top > Technical-notes > Allowable coil current |
Explains the allowable current of a coil based on magnetic flux density.
Below is the basic formula for calculating magnetic flux density.
When the current is increased in a coil wound around a core, the inductance decreases.
When it becomes completely magnetically saturated, it has the same inductance as a coil without a core.
Drum-type choke coil |
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| 【Features】Low cost. | |
 Core：LH14 DR2W7.8×7.5 Nickel-Zinc Ferrite core Inductance：680μH±10% |
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Toroidal type choke coil |
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| 【Features】Closed magnetic circuit for low noise. | |
 Core：CH203060 HIGH FLUX Ni-Fe alloy powder cores Inductance：180μH±10% |
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Transformer type choke coil |
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| 【Features】The allowable current and inductance can be changed by adjusting the core gap. | |
 Core：EER28/34 Manganese-Zinc Ferrite core Inductance：260μH±10% |
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