PM20S-390K

Fixed inductors are components in electric and electronic circuits. They can be used to store energy in a magnetic field. The PM20S-390K is an example of a fixed inductor, specifically a surface-mount, non-shielded inductor.

The PM20S-390K consists of a single spool of magnet wire which is enameled with a high temperature polyester varnish. This wire is wound around a ferrite core shaped like an eel and allows current to flow in either direction, producing a stable magnetic field. The inductance value of the PM20S-390K, with a temperature coefficient of 100ppm, is 0.390mH.

Applications of the PM20S-390K

The PM20S-390K has numerous applications, making it an ideal choice for a wide range of circuit designs. It is commonly used as a general purpose inductor in DC to DC converters, power supplies, SMPS (switched mode power supplies), PFC (power factor correction) circuits, and more. These inductors are ideal for use in DC-DC converters, power supplies, SMPS designs, EMI filters, and signal conditioning circuits.

The PM20S-390K offers excellent performance in high frequency and high voltage circuits, making it a great choice for high-speed switching applications. Additionally, its low voltage, low power consumption, and low heat dissipation make it suitable for applications running on battery power.

Working Principle of the PM20S-390K

The PM20S-390K works by creating a magnetic field in response to an electric current. As electric current passes through the inductor, the changing magnetic field induces a voltage across the inductor\'s terminals. This voltage creates a back emf (electromotive force) which opposes the current. The current thus remains constant and is limited by the inductance of the PM20S-390K and the current applied. The PM20S-390K effectively acts as an electrical filter, blocking high frequency signals but allowing low frequency signals to pass. The voltage and current across the inductor will vary depending on the frequency of the applied current.

The PM20S-390K is ideal for applications with complex power requirements due to its low thermal resistance and high saturation current. The inductor can handle high current ratings and can be used in both low impedance and high impedance circuits. It is also a great choice for applications requiring a high inductance such as passive filters and voltage converters.

Conclusion

The PM20S-390K is a high performance, low cost inductor that is suitable for a variety of applications. It is able to handle high current ratings and has a low saturation current, making it ideal for circuits with complex power requirements. The inductor also provides excellent performance in high frequency and high voltage circuits, making it a great choice for high-speed switching applications.