PM125SH-121M-RC

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Fixed inductors (also called fixing coils) are passive electronic components, typical of which are iron cores. They are used to store energy, gather current, filter signals, adjust output circuits, and protect sensitive devices. PM125SH-121M-RC is a type of fixed inductor, and this article will discuss its application field and working principle.

Application Field

The PM125SH-121M-RC is a broad-range, power inductor suitable for a variety of applications, including:

• Power electronics: PM125SH-121M-RC is suitable for application in power electronics circuits that require high efficiency power conversion, such as battery chargers, motor drives, servers and other high-power AC/DC power converters.
  • High switching performance: PM125SH-121M-RC has an inductance range of 8.22 to 1021 mH, with a low DCR value of 4 m ohms maximum and a frequency response of DC to 40 MHz. Its saturation current (Idc) can reach 5-17A and its leakage inductance is low. This leads to high switching performance and high efficiency in power conversion.
  • Reduced EMI/RFI interference: The PM125SH-121M-RC uses a ferrite core that helps lessen the effects of electromagnetic interference and radio frequency interference (EMI/RFI). This further protects sensitive devices from any potential damage.
• Communications equipment: The PM125SH-121M-RC is used in communications equipment applications to increase component life cycles and improve system protection against power surges. It is also used in energy storage, pulse shaping, filtering and matching circuits in electronic communications systems.

Working Principle

PM125SH-121M-RC\'s basic operating principle is just like other fixed inductors. It uses a coil around a core (often made of iron) that reacts with the current flowing through it. When current flows through the inductor, a magnetic field is created, which is proportional to the amount of current passing through the device. This magnetic field is used to generate a voltage across the inductor, which varies with the current applied to it.

The voltage generated across the PM125SH-121M-RC is largely determined by the inductance of the device. The inductance of an inductor is typically expressed in terms of a ratio of the current flowing through the inductor to the resulting voltage across the inductor. PM125SH-121M-RC has several different inductance values ranging from 8.22 mH to 1021 mH, so the amount of voltage generated is determined by the value of the inductance used.

In addition to generating a voltage, current flowing through the PM125SH-121M-RC also causes the magnetic field to store energy within the core, which is then released in the form of a current spike when the source current passes through zero. This current spike is sometimes used to dampen or filter electronic signals to form a cleaner signal or to protect sensitive components from voltage spikes.

Conclusion

The PM125SH-121M-RC is a type of fixed inductor that is suitable for a variety of applications, including power electronics and communications systems. Its inductance value is adjustable and can be used to generate a voltage and store energy. The inductor\'s ferrite core helps to reduce the effects of EMI/RFI interference, providing additional protection for any sensitive devices in the system.

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