IM04BH121J

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Fixed inductors are components used mainly in power conversion applications. They are composed of a core made of ferrite, iron powder, air gap, as well as a winding. Fixed inductors generally don\'t have any specifications that can change. They are able to store and release energy in the form of a magnetic field in response to a varying applied current.

IM04BH121J is a type of fixed inductor, specifically designed for applications with high current. It is a four-terminal, open-air, toroidal, radial-lead, air-core inductor, with a maximum rated current of 31.2A. Due to its structure, it is able to operate in high temperatures (up to +125°C).

The outer structure of the IM04BH121J consists of a four-terminal connection, a full-schematic, and a radially leaded solid insert. The entirety of the structure is insulated with a olefin-based HALAR insulation. This helps the device resist against environmental oxidization and abrasion.

The core of the device is a ferrite core, consisting of a high saturation, high permeability mix of iron and alloy powders. In order to support the high current, the device is designed with an air gap that separates the windings and core. This allows the air gap to dissipate the excessive heat that is generated by the current.

In terms of performance, the IM04BH121J is able to offer a 0.48mH inductance value. The transient response time is also relatively quick, clocking in at 4.2ns at a switching current of 1.5A. At 140μs, the total possible ripple current is rated at 53.5A.

The main application field for the IM04BH121J is high-current applications, such as power supplies and dc-dc converters. It is able to achieve up to 86.6% inductance efficiency when compared to its rated inductance. The device is also resistant to oxidation, making it suitable for long-term operation.

The working principle of the IM04BH121J is quite straightforward. When a current is applied to the device, the core creates a magnetic field in response to the current. The magnetic field in turn induces a voltage across the winding, thus creating a self-inductance circuit. This inductance helps the device reduce the amount of power that is dissipated by the current.

In conclusion, the IM04BH121J is a fixed inductor specifically designed for high-current applications. Its winding is composed of a ferrite core with an air gap, and is insulated with a HALAR insulation. The device is able to offer up to 0.48mH inductance value, and can handle a transient response time of 4.2ns and a ripple current of 53.5A. It is able to achieve up to 86.6% inductance efficiency, and is resistant to oxidation, making it suitable for long-term applications.

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