5500R-825K

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Fixed inductors are components of an electronic system, typically consisting of a coil of wire wound onto a core material. Fixed inductors are used in a variety of applications, most commonly in the filtering and conditioning of power, signal and data circuits. The primary function of an inductor is to store energy in a magnetic field, and as such, they are fundamental components of electrical and electronic circuits.

The 55R-825K fixed inductor is particularly suited to applications that require high power performance. This type of inductor is capable of dissipating up to 4.2W of power at 20% duty cycle, making it suitable for a range of applications such as power supplies, DC/DC converters, power amplifiers and microphone amplifiers.

The core material used in the 55R-825K is a ferrite material. This is a type of ceramic compound composed of iron oxide and other metal oxides. This material is useful for a number of reasons: it is highly resistant to mechanical strain, it has a consistent inductance at different temperatures, and its permittivity makes it well-suited for the production of high power inductors.

The inductance of a fixed inductor is determined by the number of turns in the coil, the core material used, and the physical size of the inductor. The 55R-825K inductor is designed for an inductance of 420µH, with a tolerance of ±10%.

The operating principle of the 55R-825K fixed inductor is simple: when a current is applied, a magnetic field is generated within the inductor. The magnitude of this magnetic field is proportional to the current flowing through the inductor. Conversely, when this magnetic field is removed, the inductor will generate a voltage proportional to the rate of change of the current. This is known as ‘back-emf’ and is the phenomenon most commonly used in the design of voltage-regulating circuits.

The 55R-825K fixed inductor is suitable for use in a variety of applications, including DC-DC switching regulators, battery charging circuits, switching power supplies, power sequencers, and signal conditioning circuits. It is an excellent choice for applications requiring high power performance, and is specifically designed to dissipate heat effectively.

In conclusion, the 55R-825K fixed inductor is well-suited for a range of power-related applications, given its core material, tolerance and operating principle. It is capable of dissipating up to 4.2W of power at 20% duty cycle, and offers excellent performance in high power applications.

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