Fixed inductors, also referred to as coil inductors, are devices used in a variety of electronic applications. They are used to store and release energy in an electric current or field. For instance, they can be used to minimize radio frequency (RF) interference, reduce the effect of current surge, and dampen system oscillations.

4302-392J is a fixed inductor that is specifically designed for use in DC to DC converter circuits and AC mains power converters. It provides higher efficiency, improved voltage regulation, lower EMI frequencies, and higher output power.

The 4302-392J is a through-hole, open frame, and shielded inductor with a ferrite core. It is constructed with the use of a unique combination of materials that include high-frequency steel core wires and finely enamelled copper wires. The device has several protective features such as high-temperature-resistant aramid fibres, which ensure high endurance and reliability in demanding environments. It is also rated for currents up to 20A.

The main application field of the 4302-392J is the modification of current in DC to DC converter circuits and AC mains power converters. This is done using inductors because they can store energy in the form of a magnetic field. The 4302-392J is used to reduce the high-frequency interference associated with these components and ensure higher efficiency, better voltage regulation, and lower EMI output.

The working principle of the 4302-392J is based on the conversion of electrical current into magnetic energy. It operates on a simple principle, whereby a coil is connected to an alternating current (AC) source. When AC current flows through the coil, a magnetic field is produced. This induces an opposing current which passes through the coil again, resisting the direct current. This alters the quality of the current, increasing the magnitude of the induced voltage.

In summary, 4302-392J is a fixed inductor that is specifically designed for use in DC to DC converter circuits and AC mains power converters. It works by inductors convert electrical current into magnetic energy and provide higher efficiency, improved voltage regulation, and lower EMI output.