4922R-48H

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Fixed inductors are components used in electronic circuits to generate a constant magnetic field or to provide inductance in a circuit. They are typically used for DC or high frequency AC circuits. The 4922R-48H is a fixed inductor from Coilcraft that is specifically designed for use in high temperature ceramic applications.

The 4922R-48H is a synchronous buck inductor with a busy circuit design that is ideal for high frequency power inductor switching applications. The overall outline of the inductor measures 8.5 mm x 8.5 mm x 7 mm, and its operating temperature range is from -40°C to +105°C. It has a inductance range of 4.7 µH to 47 µH and has an inductance tolerance of ±10%. The rated current for this inductor is 25.6 A, with a current saturation of 35 A and an inductance drop of 11% at rated current. Maximum allowable ripple current is 120.4 A at 100 kHz.

The 4922R-48H is a ferrite core inductor that is produced using a combination of cobalt powder, aluminum, iron, copper, and ferrite. This combination makes it an efficient inductor with high power ratings. The 4922R-48H is designed to have low DCR and is designed to improve thermal performance. It has high saturation current stability and offers high frequency performance.

The application field of the 4922R-48H is varied and wide-reaching. It is used in a variety of applications, including automotive electronics, telecommunication systems, laptops, liquid crystal displays, and consumer electronics. The inductor is suitable for Power over Ethernet applications, synchronous buck circuits, and high current step down voltage regulators. The inductor is also used in frequency converters, DC-DC converters, and AC-DC converters.

The working principle of the 4922R-48H is simple. When a DC voltage is applied to the inductor, the current running through it will build up over time. This is known as inductance and is caused by a changing magnetic field based on Faraday’s Law. The current will eventually reach a level where the inductor is saturated, and it will no longer accept current. At this point, the inductor is no longer able to deliver current to the circuit and the magnetic field will collapse. This in turn will create an opposing current, which is then used to help regulate the original DC voltage.

In summary, the 4922R-48H is an ideal inductor for high temperature ceramic applications. It has a wide operating temperature range, a wide inductance range, and a high power rating. It is also suited for applications such as automotive electronics, telecommunication systems, and consumer electronics. The working principle of the 4922R-48H is based on Faraday’s Law, which states that when a DC voltage is applied to an inductor, a magnetic field will be created which will gradually increase the current passing through the inductor until it reaches saturation. At that point, the inductor will no longer be able to deliver current to the circuit and the magnetic field will collapse, which will create an opposing current and help regulate the original DC voltage.

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