SDR0805-121KL Inductors, Coils, Chokes

Fixed Inductors

A fixed inductor is a type of electronic component used to store energy either in an electric field or a magnetic field. It is an inductor that carries a fixed, non-adjustable inductance. Also called a fixed-value inductor, it typically consists of a coil of wire arranged around a core, with the core material providing the inductance, and the wire material determining the resistance. Fixed inductors are broadly used in a variety of analog circuits, from power supplies to audio power amplifiers.

SDR0805-121KL

The SDR0805-121KL is a fixed inductor series manufactured by Vishay with a wide variety of applications, most notably in medical instruments such as patient monitoring systems, medical imaging systems, and patient care machinery. It has an inductance of 120 nH, is AEC-Q200 qualified, and is RoHS compliant.

Application Field

Due to its small size and high inductance, the SDR0805-121KL is ideal for portable medical devices or other applications which require a small form factor. It is often used in medical imaging systems, patient monitoring systems, pacemakers, and other high-reliability medical equipment where the amount of available space and the efficiency of the circuit are of paramount importance. As it is AEC-Q200 qualified, it is also used in automotive circuits, and any circuit that requires high reliability.

Working Principle

Fixed inductors store electrical energy in a magnetic field which builds up when the current is applied. This magnetic field can then be used to create a current in the opposite direction, making the inductor an effective method of controlling and manipulating the current in a circuit. In the SDR0805-121KL series, this is done by winding a wire around a ferromagnetic core, which creates a magnetic field when current is applied. The size of this magnetic field and thus the amount of inductance is determined by the material used in the core.

Conclusion

The Vishay SDR0805-121KL is a fixed-value inductor that is suitable for high-reliability and automotive applications due to its AEC-Q200 qualifying and RoHS compliance. Its small size makes it ideal for portable medical devices or other applications which require a small form factor, and its ability to store energy in a magnetic field makes it useful in controlling and manipulating the current in a circuit.