1210-047J

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Fixed inductors are among the most commonly used components in electrical engineering. They are used to store energy, create electromagnetic fields, filter signals, and generate constant voltages. Many different types of fixed inductors are available, and 1210-047J is one of them. This article will discuss the application field and working principle of 1210-047J fixed inductors.

Overview of 1210-047J

The 1210-047J is a surface-mounted fixed inductor with an inductance of 4.7µH. It has a tolerance of ±20%, and its maximum DC current rating is 1.2A. It has a maximum self-resonant frequency of 120MHz, and a total height of 0.51 inches. It is made of ferrite core material with a nickel-plated copper frame. It has an operating temperature range of -55°C to +125°C, and a storage temperature range of -55°C to +125°C.

Application Field

1210-047J fixed inductors are widely used in various types of applications. These include power converters, switching power supplies, LED drivers, brushed DC motor drivers, coil crafts, and inductive charging systems. They are also used in pulse circuit designs, and for antenna tuning, EMI/RFI filtering, and noise suppression. 1210-047J fixed inductors are especially suitable for applications that require high currents and low operating temperatures.

Working Principle

Like all other inductors, 1210-047J fixed inductors operate on the principle of electromagnetic induction. When an electrical current flows through the inductor, it creates a magnetic field around the inductor. This magnetic field induces an electromotive force (EMF) in the inductor, which in turn creates an opposing current. This opposing current is known as the back EMF, and it opposes the original current. Because of this phenomenon, inductors tend to store energy, which can be released in the form of an EMF when the current is decreased or stopped. This phenomenon is called inductor saturation, and it is the basis for the operation of 1210-047J fixed inductors.

Conclusion

The 1210-047J is a surface-mounted fixed inductor with an inductance of 4.7µH, a tolerance of ±20%, and a maximum DC current rating of 1.2A. It is widely used in various types of applications, including power converters, switching power supplies, LED drivers, brushed DC motor drivers, coil crafts, and inductive charging systems. It operates on the principle of electromagnetic induction, whereby it creates an opposing current (back EMF) when a current is applied to the inductor, which then stores energy. This stored energy can then be released as an EMF when the current is decreased or stopped.

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