1638-12J

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Fixed Inductors: 1638-12J application field and working principle

Fixed inductors, also known as chokes, are passive two-terminal electrical components used to store energy in a magnetic field. They are commonly used in electronic circuits for filtering, transient suppression, and impedance matching. An example of a fixed inductor is the 1638-12J Series from Sumida America Components, Inc. This article looks at the application field of the 1638-12J Series and its working principle.

The 1638-12J Series is a range of fixed inductors designed for high-frequency applications. They are designed to deliver high power density while operating at high frequencies up to 150 MHz. With an operating temperature range of -40°C to 125°C, these inductors are suitable for use in a wide range of environments and applications. The 1638-12J Series is suitable for use in power supplies, DC-DC converters, audio amplifiers, and other applications where consistent performance and robustness are required.

These inductors have a ferrite core and are wound with enamelled copper wire. They have a wide range of inductance values, from 0.22µH to 220µH. They also have a wide range of current ratings, from 0.8A to 5.8A. The inductors are rated for a maximum DC resistance, typically at 0.13Ω. The 1638-12J Series has a maximum operating temperature of 125°C and has a -40°C minimum operating temperature.

The working principle of a fixed inductor is based on the phenomenon of electromagnetic induction. When a steady current passes through an inductor, a magnetic field is produced. This magnetic field is proportional to the amount of current that is passing through the inductor. This magnetic field then induces an electromotive force in the neighboring wire. This voltage is inversely proportional to the rate of change of the magnetic field. Thus, the inductor acts to oppose any change in the current passing through it, and as such, the core of the inductor can function as an energy store.

The 1638-12J Series utilizes the core of the inductor to store energy. This energy then dissipates into the surrounding environment, allowing the inductor to regulate the amount of steady current passing through it. By providing a path for the energy to be dissipated, these inductors are able to maintain the desired current in the circuit, regardless of any sudden or gradual changes.

The 1638-12J Series is a versatile range of fixed inductors designed to handle high-frequency applications. By providing a path for energy to be dissipated, they are able to regulate the amount of current in the circuit, regardless of any sudden or gradual changes. They have a wide range of inductance values and current ratings, and are suitable for use in a range of environments and applications.

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