PM125SH-270M-RC

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Fixed inductors come in many forms and are used for different applications, such as DC-to-DC power conversion, filtering, and matching. The PM125SH-270M-RC, a fixed inductor made by Coilcraft, is suitable for a variety of applications demanding a high-quality and reliable inductor. This review examines the application fields and working principle of the PM125SH-270M-RC.

Overview

The PM125SH-270M-RC is a high-quality, through-hole inductor with a ferrite core and a smd shielded construction. The core material is Ferrite, and the internal coil is wound with enameled Copper wire. The part has a resistance of 270mOhms, a saturation current of 2.2ARMS, and a DC current rating of 1.3ARMS. It is rated to 125MHz, allowing it to be used in RF applications. The device is also impervious to environmental conditions, with an enviromental temperature range of -40℃ to 125℃.

Application Field

The PM125SH-270M-RC is primarily used as an inductor in DC-to-DC power conversion circuits. It is used as an output inductor, and can be used to reduce ripple, stabilize the output voltage, and improve the efficiency of the power circuit. In addition, the PM125SH-270M-RC can be used in high-frequency RF applications, as it is rated up to 125MHz. Such applications might include switching regulators, power inverters, karaoke power amplifiers, RF amplifiers, and DC-DC converters.

Working Principle

The working principle of the PM125SH-270M-RC is based on basic electromagnetic laws. When a current flows through the inductor, a magnetic field is created around the coil. This magnetic field creates a voltage across the inductor, which is proportional to the rate of change of the current. This phenomenon is known as “self-inductance,” and it can be expressed mathematically as: V = L*di/dt, where V is the voltage across the inductor, L is the inductance of the inductor, and di/dt is the rate of change of current.

The amount of voltage induced across the PM125SH-270M-RC is dependent on the inductance of the inductor. In this case, the inductance is 270mOhms, meaning any change in current will induce a voltage of 270mOhms across the inductor.

Conclusion

The PM125SH-270M-RC is a high-quality, reliable fixed inductor that is suitable for many applications. It is primarily used for DC-to-DC power conversion, and can also be used in high-frequency RF applications. Its working principle is based on basic electromagnetic laws, with the induced voltage being proportional to the rate of change of current and the inductance of the inductor.

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