Fixed Inductors

Fixed inductors refer to electrical components that are designed to induce or offer fixed electrical inductance in an electrical circuit. These can be found in a variety of electronic components, such as microcontroller circuits, electric motors, alternators, and other electronic devices. The 1782-47F is an example of a fixed inductor.

1782-47F Application Field and Working Principle

Application Field

The 1782-47F is a kind of shielded inductor, which means that it is encased in a magnetic shell and is being exposed to an external electromagnetic field. It is specially designed to work in high-frequency switching power converters, flyback converters, power factor correction (PFC) circuits, resonant converters, and other related circuits. Due to its wide working temperature range and its high flux density, this part is a suitable fit for a variety of rugged, SMT applications.

Working Principle

Those devices can be modeled as an ideal inductor network consisting of one or more EMC-shielded inductors connected in series or parallel. The 1782-47F has a minimum inductance value of 10 μH in series applied, so when current flows through the inductor network, a force of self-induction generated, which will oppose the current. A greater number of inductors connected in series will increase the inductive effect and the inductance value.

Conclusion

The 1782-47F fixed inductor is well-suited for a variety of high-frequency switching power converters, flyback converters, PFC circuits, and resonant converters. With its wide temperature range and high flux density, it is ideal for SMT applications. The operation is based on its inductive effect, which opposes the flow of current within a magnetic field.