PM20S-R027M

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Fixed inductors play an important role in the smooth operation of electrical circuits. The PM20S-R027M is a fixed inductor manufactured by Pulse Electronics, specifically designed for high-frequency power conversion and filtering applications. It has a high saturation current of 1.9A and a typical inductance of 2.7μH. With its high saturation current, the PM20S-R027M is able to provide superior performance in applications such as DC-DC converters. Additionally, it has excellent electromagnetic interference (EMI) attenuation to ensure it meets stringent EMC standards.

The PM20S-R027M is a highly efficient magnetically shielded power inductor, offering an inductance tolerance of 10%. It is packaged in a molded case and has short circuit protection. This product also offers excellent thermal capability, with good thermal performance due to its internal air gap. It is available in both an open frame or with an enclosed insulation tube for increased protection.

The PM20S-R027M uses a core material made of powdered iron to provide excellent inductance, while keeping the core losses minimal. This type of core also provides high temperature stability with low aged drift. The PM20S also has wide inductance range, it can be manufactured in a variety of standard inductance values from 1.2 to 3.3 μH.

The working principle of a fixed inductor is based on Faraday’s law of induction. This law states that whenever an electrical conductor is subjected to an alternating current, a magnetic field is created in the vicinity of the conductor and an induced EMF is caused in the conductor. As the alternating current increases, the magnetic field around the coil will increase and prevent current from passing through it. This effectively limits the amount of current that can flow in a circuit, thus regulating the current in the circuit.

The PM20S-R027M is suitable for applications such as DC-DC converters, switching power supplies, motor drives, LED drivers, and Class D audio amplifiers. With its high saturation current, it can also be used for filtering and EMI attenuation in high voltage applications. In addition, it is very versatile as it can be used in series or parallel configurations. It is also an excellent choice for audio applications as it has low noise levels and excellent temperature stability.

In conclusion, the PM20S-R027M is a fixed inductor manufactured by Pulse Electronics, designed for high-frequency power conversion and filtering applications. It features a high saturation current of 1.9A and a typical inductance of 2.7 μH. Its magnetically shielded construction offers excellent EMI attenuation and reliability. Additionally, its wide inductance range enables it to be used in various applications including DC-DC converters, switching power supplies, motor drives, LED drivers, and other audio applications.

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