Fixed Inductors

An inductor, also called a coil or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when electric current is flowing through it. Inductors can be used to create electrical filters, oscillators, and resonant circuits. A common type of inductor is an electromagnet coil, which is a wire wound in a spiral to create a specific inductance value. Fixed inductors are the most common types of inductors, and are used to create oscillators and resonant circuits. This article will focus on S1812R-682K, a type of fixed inductor.

S1812R-682K application field and working principle

The S1812R-682K is an axial leaded low-profile power inductor with a high current rating. Due to its low profile design and high current rating, the S1812R-682K is suitable for a wide range of applications, such as power supplies, DC/DC converters, personal computers, and consumer electronics.

The S1812R-682K has an inductance value of 6.8µH and can handle up to 24 amps of current. The inductor consists of a wound copper wire coil surrounded by a magnetic core. When current flows through the coil, it creates a magnetic field around the coil. This magnetic field is what stores the energy. The inductor works by limiting the amount of change, or voltage, that can pass through it. When an alternating current is applied to the inductor, the voltage and current through it will alternate as well. However, the inductor will only allow a limited amount of change in the voltage, effectively smoothing it out.

The inductor also has a quality factor, or Q value, which indicates how much energy is stored in the magnetic field. The higher the Q value, the more energy is stored and the more efficiently the inductor will operate. The Q value of the S1812R-682K is 40, meaning it is able to store and transfer a significant amount of energy.

Conclusion

The S1812R-682K is a type of fixed inductor with a high current rating and a low profile design, making it suitable for a wide range of applications. It has an inductance of 6.8µH and can handle up to 24 amps of current. The inductor works by limiting the amount of voltage that can pass through it, and it has a quality factor (Q value) of 40.