PM75-271K-RC

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Fixed inductors are passive components used for filtering, blocking, storing energy, and producing oscillations. Examples include bead coils, ferrite beads, and chip coils. The PM75-271K-RC fixed inductor is a surface-mounted chip coil made of non-magnetic nickel alloy and is perfect for use on digital boards whose conditions range from -55 to 125°C. This article will discuss the application fields and working principle of the PM75-271K-RC inductor.

Application Fields

The PM75-271K-RC fixed inductor is designed for use in board-level digital products, such as PDA, mobile phones, MP3 players, as well as other hand-held devices. Its application fields are mainly in the automotive industry, communications industry, toys industry, and consumer electronics industry. It can also be used for voltage regulators, temperature regulators, small motor drives, beeper filters, and ripple filters. The inductance of the PM75-271K-RC is constant over a wide range of frequencies, meaning it can be used to improve the efficiency of the circuit, eliminate noise, suppress interference, reduce ripple, and increase the operating bandwidth.

Working Principle

The PM75-271K-RC fixed inductor can realize inductance measurement through the principle of magnetic flux, that is, with a one-way magnetic flux linked in a ring conductor (or magnetic core), and a time-varying current is passed through the ring conductor. The directed magnetic flux produces a reactive electromotive force, thereby forming a reverse current circuit to suppress the current flowing in the main circuit. This process causes the inductance to change.

The fixed inductor is composed of a winding unit and a magnetic core. The winding unit is a multiple-turn winding, which can store electrical energy brought by the current magnetic field. The magnetic core is a core made of non-magnetic ferrite or iron powder core. It can guide, concentrate, and strengthen the magnetic flux of the winding unit. The combination of these two components forms the inductor.

When a time-varying current flows through the inductor, a time-varying magnetic field is generated. When the circuit is closed, the time-varying magnetic field generates a reverse electromotive force in the winding unit, suppressing the electric current in the conductor. As the magnetic field increases and decreases according to the current, the reverse electromotive force also changes, thus changing the inductance of the circuit.

In addition, the PM75-271K-RC is a low-loss and high-frequency chip inductor. It uses a high-temperature glass fiber board and a brand-new silver plated anti-electromagnetic interference material to have excellent anti-electromagnetic interference performance. It has high insertion and withdrawal strength, high reliability, and can pass high-frequency gravitational resonance testing, vibration test, vibration test, and meet UL1446 class F vibration standard, providing reliable protection for circuit board application products.

Conclusion

In summary, the PM75-271K-RC fixed inductor is a high-performance surface-mounted chip coil made of non-magnetic nickel alloy. It is mainly used in board-level digital products such as PDAs, mobile phones, MP3 players, and toys. It can be used in automotive, communications, consumer electronics, and many other industries. The PM75-271K-RC inductor works by passing a time-varying current through a winding unit and a magnetic core to generate a time-varying magnetic field, which can control the inductance of the circuit. It has excellent anti-electromagnetic interference performance and high reliability, making it ideal for board-level applications.

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