SD20C-470-R

Fixed Inductors are the most common and versatile type of inductor. They provide a simple and efficient way to store energy, block DC currents, and provide transient suppression. The SD20C-470-R is a type of fixed inductor designed by Semtech Corporation for use in power conditioning applications. This article provides an overview of the SD20C-470-R’s application field and working principle.

Application Field

The SD20C-470-R is ideal for use in power conditioning applications. Its design offers exceptional performance and reliability in a compact, surface mount form factor. The SD20C-470-R features a ceramic base ferrite core and a secondary winding encapsulated in a Shermanite compound. This prevents oxidation caused by humidity and provides thermal and electrical insulation to protect the winding. The device is also designed to be reliable in high power switching conditions, making it well-suited for a wide range of AC to DC converters.

In addition to power conditioning, the SD20C-470-R can also be used in other applications such as RFID, motor control, motor drives, and motor control. Its robust design ensures reliable performance in all of these applications.

Working Principle

The SD20C-470-R works by storing energy in its ferrite core. As current passes through the device, a magnetic field is established and stored in the core. This stored energy is used to oppose any changes in the current, providing a steady state current regardless of the voltage across the winding. This makes the SD20C-470-R well-suited for power conditioning.

The SD20C-470-R’s design also allows it to block DC currents. The ferrite core is designed to be more resistive to DC currents than to AC currents, so any DC current that flows through the device is blocked. This makes the SD20C-470-R an ideal component for applications where DC current must be blocked for safety or performance reasons.

Finally, the SD20C-470-R can be used to provide transient suppression. The magnetic field stored in the ferrite core provides a dampening effect on any changes in voltage across the winding. Thus, any sudden changes in the voltage are suppressed, reducing the potential for electrical damage or interference.

Conclusion

The SD20C-470-R is an excellent choice for a wide variety of power conditioning applications. Its compact, surface mount form factor and robust design allows it to be used in a variety of scenarios, from RFID to motor control. Furthermore, its ability to store energy in the ferrite core, block DC currents, and provide transient suppression make it an ideal solution for power conditioning applications.