ER1025-47JP

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Fixed inductors are passive electrical components used for storing and releasing electrical energy in electric and electronic circuits. Often known as chokes in industrial applications, the main job of a fixed inductor is to act as a filter by blocking unwanted signals while allowing wanted signals to pass through. While these components come in a variety of shapes and sizes, the most common type used today is the ER1025-47JP.

The ER1025-47JP is a surface mount fixed inductor with a low profile packaging so that it can be mounted on printed circuit boards (PCB) without the need for additional wiring or assembly processes. It has a maximum rated current of 0.47 amps and a maximum rated voltage of 10 volts. The inductance of this component varies from 2.5 to 20 μH and its resistance is consistently high, ranging from 4 to 10 ohms.

In terms of applications, the ER1025-47JP is primarily used in RF applications, such as in antenna systems, for filtering, blocking, and controlling the flow of radio frequency signals. Its low profile with a maximum inductance rating makes it perfect for use in high-frequency circuits and applications, as it can be used to block out unwanted signals while allowing wanted signals to pass through.

The working principle of the ER1025-47JP is the same as any other inductor. It works by opposing the change in current that flows through it when it is connected to a circuit. This opposition, known as inductance, is measured in units called Henry (H), and the higher the inductance, the greater the opposition to current change.

When an alternating current such as a radio frequency signal is applied to it, the inductor will resist the current flow and store some of the energy in the form of a magnetic field. When the current is removed, the energy is then released back into the circuit in the form of a magnetic field. This energy release helps to block foreign signals, while allowing wanted signals to pass through.

The ER1025-47JP is a common fixed inductor used in a variety of applications due to its reliable performance and low profile design. Its high inductance and high resistance make it ideal for use in RF and high-frequency applications, as it can be used to block out unwanted signals while allowing wanted signals to pass through.

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