CAL45TB820K

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Fixed inductors are passive electrical components that store electrical energy in the form of magnetic fields. The CAL45TB820K is a fixed inductor designed for Electronic Fastening Systems (EFS). This inductor is ideal for applications that are energy- and space-conscious.

The CAL45TB820K has an inductance of 8.2 uH and can operate at operating currents of 45 Amps. With a low resistance (2.1mOhms) and a low Profile of 4.5x3.3mm, the inductor has a physical size of a few millimeters. The operating temperature of the CAL45TB820K inductor is -25°C to +105°C and is available with RoHS Compliant in a PLCC-6 package.

The working principle of a fixed inductor is based on Faraday’s law of induction—when the magnetic field created by the current passing through the inductor changes, an electromotive force (EMF) is produced. This results in any change in the applied current through the inductor causing an opposing voltage across it. This opposing voltage is called the back EMF. This back EMF is typically what limits the maximum current flowing through the inductor.

The CAL45TB820K inductor is a type of Coated Air Core (CAC) technology, making it extremely lightweight, with an insulation rating of 2 kVAC minimum. The inductor includes a molded interior plate that provides a secure closure and protection against dust and moisture. The size, weight, and EMI shielding capability of the inductor allows it to be used in electronic devices where excellent EMI shielding is desired.

Applications for the CAL45TB820K Inductor include power electronics, EFS, DC-DC converters, switch-mode power supplies, and ORing/IRing circuits. The low resistance and low profile of the inductor makes it well suited to be used in small form factor applications. The inductor can also be used for filtering, noise reduction, and voltage stabilization.

In conclusion, the CAL45TB820K inductor is an ideal device for applications where efficiency and size are at a premium. The low resistance and low profile of the inductor make it a good choice for energy- and space-constrained applications. Furthermore, its CAC technology provides excellent EMI shielding capability. Its applications range from power electronics to filtering, noise reduction, and voltage stabilization.

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