74477828

Fixed Inductors Overview

The Würth Elektronik 74477828 is a shielded power inductor from the WE-PD series, designed for surface mount applications. It features an 820 µH nominal inductance with a tolerance of ±20%. The component has a maximum DC resistance (DCR) of 6.5 Ohms and supports a rated current of 210 mA. It is certified to AEC-Q200 standards, ensuring reliability for automotive environments. The operating temperature range spans from -40°C to +125°C.

Fixed Inductors Feature Summary

• Shielded drum core construction minimizes electromagnetic interference
• AEC-Q200 qualified for automotive electronic applications
• Robust wirewound design suitable for power circuits

Fixed Inductors Applications

• Automotive power supply modules
• DC-DC converter input/output filtering
• On-board charger circuits

Fixed Inductors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct tolerance and packaging specifications. Confirm that the AEC-Q200 certification status aligns with your project's quality requirements. Check for any recent Product Change Notifications regarding material or assembly site updates before finalizing procurement orders.

Fixed Inductors Selection Notes

Select this component when high inductance values are required in a compact surface-mount footprint for automotive systems. The shielded design makes it suitable for noise-sensitive environments where stray magnetic fields must be contained. Ensure the circuit's RMS current does not exceed the 210 mA rating to maintain performance and longevity.

Fixed Inductors Part Context

This part belongs to the WE-PD series of robust SMT shielded power inductors manufactured by Würth Elektronik. The series is characterized by its wirewound technology and ferrite core, offering high saturation currents and low DCR relative to its size. It is specifically engineered to meet the stringent demands of modern automotive electronics.

Fixed Inductors Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation. If replacement is necessary, consult the manufacturer for recommended alternatives that match the 820 µH value, 210 mA current rating, and AEC-Q200 qualification.