B82442A1984A

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Fixed inductors are a type of inductor, used to provide inductance in a circuit. They are most commonly used to provide inductance in order to filter out unwanted frequencies, providing improved signal integrity in the circuit. The B82442A1984A fixed inductor is a popular automotive-grade product in this category, offering a nominal inductance rating of 47uH, with a maximum allowable current of 15.5 amps.

The B82442A1984A is a unique type of fixed inductor that features a low DCR value of 33mΩ with an associated high temperature storage and operating range. This component includes an MELF (Metal Electrode Leadless Face) casing for streamlined installation into circuit boards. This casing, along with its highly efficient internal winding construction, minimizes internal temperature rise even when operating at high currents.

The B82442A1984A is designed for various automotive applications, from engine control systems to power door motors. These include actuation systems, direct fuel injection, integrated starter generator systems, and engine monitoring systems. As such, the component is designed for reliable operation in the harsh automotive environment, with an operating temperature range of -45 to +165°C.

The operational working principle of the B82442A1984A is based on Lenz’s law of induction. When an alternating current (AC) is passed through the inductor, it will produce a magnetic field, which varies in strength with the frequency of the current and the resulting magnetic field. This varying magnetic field interacts with the current to cause a counter-emf (electromagnetic force) that opposes the motion of current.

This opposition produces a ‘back-emf’, which is caused by the hysteresis in the inductor winding. This hysteresis acts like an energy storage medium, governing the rate of current change in the circuit. As such, the B82442A1984A supplies a steady current output, regardless of any fluctuations in the input frequency. Additionally, the inductor adds impedance and improves signal integrity in the circuit.

In conclusion, the B82442A1984A fixed inductor is a highly efficient component designed for automotive applications. It is designed to meet the requirements of modern automotive control systems, with a low DCR and high temperature range. Its Lenz’s law related inductance provides a stable current to the circuit, while also improving the overall signal integrity of the system.

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