1325-151J

Fixed Inductors: 1325-151J Application Field and Working Principle

The 1325-151J is a fixed inductor, usually found in radio frequency, including rfid and cellular applications. It is designed for improving impedance matching of near-end loads, and offers low EMI, low harmonic distortion, and a wide frequency range.

Application Fields

The 1325-151J is especially suited to high-frequency apps, as it has an operating frequency of 500Khz to 1Ghz. Its EMI filtering capabilities are ideal for cell phone signals, respecting the European directive 2004/108/EC on electromagnetic compatibility. Inductors are used to regulate the current, as they impede the single path of current, which causes a reverse direction due to electromagnetic induction, and in this way, power is not dissipated but stored.

The 1325-151J features small size, low cost, and a high L/R ratio as well. Furthermore, due to its small size and surface mount technology, it takes up minimal space. It also has excellent solderability. All of these characteristics make it an ideal choice for phone applications.

Working Principle

The working principle of the 1325-151J is based on Faraday\'s law. This law states that if a magnetic field passes through a conductor, an induced voltage will be produced, which is equal to the rate of change of the magnetic flux links with the conductor, multiplied by the induced electric field. Since the 1325-151J is a fixed inductor, it increases the current to the device, causing a reverse direction due to electromagnetic induction, which then stores the power instead of dissipating it.

The 1325-151J is a fixed inductor, so the amount of stored energy is dependent on the number of turns in the coil and the current passing through it. The number of turns determines the inductance, which is measured in henries (H). The current passing through the coil determines the magnetic flux, which is measured in webers (Wb). Therefore, the amount of energy stored is proportional to both the number of turns and the current passing through the coil.

The 1325-151J is also a high-frequency inductor, so its core is air or iron. Its coils are typically wound with copper wire, as this guarantees a high-induction level and an increase of the ore permeability.

Conclusion

The 1325-151J is a fixed inductor designed for radio frequency and cell phone applications. The inductor’s low EMI values and high L/R ratio make it an ideal choice for many cellular and RFID applications. Its operation is based on Faraday’s law, which states that an induced voltage is created when a magnetic field passes through a conductor. The 1325-151J is wound with copper wire, which increases the inductance and magnetic flux. This allows it to store energy instead of dissipating it.