IMS05RUR39J

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Fixed Inductors

Fixed Inductors, or sometimes referred to as fixed coils, are devices used in electrical and electronics engineering to store electrical energy or induce a voltage or current signal in the form of an alternating current. The IMS05RUR39J fixed inductor, developed by Murata Electronics, is a small sized, high performance fixed inductor that is able to provide high power density to its applications. It can also be used to reduce the total area of a circuit board by using larger lead holes that can accommodate the larger coils.

Application Field

The IMS05RUR39J fixed inductor is mainly used in switches, motor drives, automotive electronics, telecommunication and consumer electronics. It can also be applied to PLL circuits, DC-DC converters, power supplies, DC/DC converters and more. In addition, the inductor is also used for voltage stabilization, decoupling, energy storage, signal transmission, and filtering.

Working Principle

A fixed inductor works by maintaining a constant current and/or voltage, maintaining a constant impedance in an electrical circuit. When DC current goes through the inductor, a magnetic field is generated which produces a voltage across the inductor opposing the applied current. This opposing voltage limits the amount of current that can flow through the coil, creating an inductive current in the circuit.

When the current is ramped up, because of the inductor’s opposition it begins to store energy in the form of electromagnetic energy in the form of a magnetic field. As the current ramps down, the opposite reaction takes place and the component produces an opposing voltage, increasing the current flow once again. This energy stored within the inductor can be used to provide a stable power source or to condition a voltage or current signal.

The IMS05RUR39J fixed inductor that Murata Electronics manufactures boasts an impressive temperature range from -55°C to +125°C. It is also able to handle up to 3.8A and has a high power density due to its small size. The inductor is also rated for 125kHz and ±20% inductance tolerance.

Conclusion

In conclusion, fixed inductors are devices usually used to store electrical energy or to induce a current or voltage in an alternating current form. The IMS05RUR39J fixed inductor from Murata Electronics is an example of such a device. It is mainly used in switching, motor drives, automotive electronics, telecommunication and consumer electronics and more. The working principle of fixed inductors is based on the production and dissipation of a magnetic field. The resulting current/voltage opposes the applied current, creating inductive current within the circuit while maintaining a constant impedance in the Figure. The IMS05RUR39J is rated up to 3.8A and 125kHz, with an impressive temperature range from -55°C to +125°C.

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