AISR-875-182K

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Fixed Inductors

Fixed Inductors have been used for a variety of applications, from signal filtering to noise suppression to broadband communications .The AISR-875-182K is an example of a fixed inductor that can offer many benefits. This article will explain the application field and working principle of this device.

Application Field

The AISR-875-182K is a fixed, SMT (surface mount technology) inductor manufactured by Alps Electric Co. Ltd. It is suitable for a variety of different applications, such as power supplies, switch-mode converters, and filter-circuits. Since it is a surface mount device, it is ideal for use in space-constrained applications, where the board layout area is limited. The AISR-875-182K has an operating temperature range of -40°C to +125°C, making it suitable for a wide range of different applications.

The AISR-875-182K inductor is a cylindrical device, measuring just 8.75 x 8 mm. It is rated at 1.2 uH, with a rated current of 0.4 Amp. The inductance is made up of two layers to reduce radiated EMI. Its self-resonant frequency is 1.8MHz, making it suitable for high frequency applications. It also has excellent Q characteristics, making it suitable for use in filter-circuits.

Working Principle

A fixed inductor is an electrical component that resists changes in electrical current. It works by creating a magnetic field when electrical current flows through it, which prevents the current from changing too quickly. This is known as inductance and is measured in units of henrys (H).

An inductor is made up of a coil of insulated wire, usually wrapped around a core such as iron or ferrite. The resistance of the wire creates a magnetic field as electrical current passes through it. The amount of inductance is determined by the number of turns in the coil, the material used for the core, and the shape of the core. As the current flows through the inductor, the magnetic field produces a back-EMF, which opposes the current. This is how the inductor resists changes in current.

The AISR-875-182K is a fixed inductor with two layers. The first layer is a ferrite core, which provides the inductance. The second layer is a non-magnetic material, such as polyimide or polyamide. This helps to reduce radiated EMI. The inductor also has excellent Q characteristics, allowing it to be used in filter-circuits, where the inductor is used to block high frequency signals from entering the circuit.

Conclusion

The AISR-875-182K from Alps Electric is an example of a fixed inductor. This device is suitable for use in many different applications, such as power supplies, switch-mode converters, and filter-circuits. It features two-layer construction to reduce radiated EMI, and it has excellent Q characteristics for use in filter-circuits. Its small size makes it suitable for space-constrained applications, while its operating temperature range of -40°C to +125°C make it very versatile.

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